[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.24"]
[Round "5"]
[White "Costachi, Mihnea"]
[Black "Nedelcu, Teodor Cosmin"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2470"]
[BlackElo "2306"]
[PlyCount "67"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 0-0 8. Bd3 h6 9. Bf4 Nbd7 10. h3 Re8 11. Nf3 Nf8 12. 0-0 Bd6 13. Ne5 Qc7 14. Bh2 N6d7 15. f4 f6 16. Ng4 h5 17. Bg6 Re7 18. Bxh5 Nb6 19. Rae1 Nc4 20. e4 f5 21. exf5 Rxe1 22. Rxe1 Bxf4 23. Qf2 Bxh2+ 24. Nxh2 Qd8 25. Qf4 Bd7 26. Ng4 Nh7 27. b3 Nb6 28. Bg6 Nf8 29. Qd6 Qg5 30. Qe7 Qd2 31. Bf7+ Kh8 32. Qh4+ Nh7 33. Bg6 Qxd4+ 34. Kh1 1-0

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.24"]
[Round "9"]
[White "Costachi, Mihnea"]
[Black "Ponomariov, Ruslan"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2470"]
[BlackElo "2646"]
[PlyCount "80"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bg5 Bb4 7. e3 c5 8. Bd3 Qa5 9. Qc2 0-0 10. 0-0 c4 11. Bf5 Re8 12. Nd2 g6 13. Bh3 Kg7 14. Rfe1 Nb6 15. Bxc8 Raxc8 16. Bxf6+ Kxf6 17. e4 dxe4 18. Ndxe4+ Kg7 19. a3 Bf8 20. d5 Nxd5 21. Nxd5 Qxd5 22. Qc3+ Qe5 23. Nd6 Bxd6 24. Rxe5 Bxe5 25. Qc2 Re6 26. g3 Rb6 27. Rb1 Rb3 28. a4 Bf6 29. h4 h5 30. Kf1 a6 31. a5 Rc5 32. Qe4 Rb4 33. Qe3 Rxa5 34. Rd1 Rxb2 35. Rd7 Rf5 36. Qe8 Rbxf2+ 37. Ke1 Rf1+ 38. Ke2 R5f2+ 39. Ke3 Re1+ 40. Kxf2 Rxe8 0-1

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.24"]
[Round "7"]
[White "Costachi, Mihnea"]
[Black "Veneteanu, Mihai"]
[Result "1-0"]
[ECO "D58"]
[WhiteElo "2470"]
[BlackElo "2026"]
[PlyCount "67"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 0-0 6. e3 h6 7. Bh4 b6 8. cxd5 exd5 9. Bd3 Nbd7 10. 0-0 Bb7 11. Rc1 Ne4 12. Bxe7 Qxe7 13. Qb3 Ndf6 14. Bb1 Rac8 15. Nb5 a6 16. Na7 Ra8 17. Nc6 Qd6 18. Qc2 Rfe8 19. h3 Rac8 20. Rfd1 Re6 21. Nfe5 Nd7 22. Na7 Ra8 23. Qxc7 Qxc7 24. Rxc7 Nxe5 25. dxe5 Rxa7 26. Bxe4 dxe4 27. Rd8+ Kh7 28. Rdd7 Bc6 29. Rxa7 Bxd7 30. Rxd7 Kg6 31. Rb7 b5 32. Ra7 h5 33. g3 Rc6 34. b4 1-0

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.24"]
[Round "6"]
[White "Deac, Bogdan Daniel"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2690"]
[BlackElo "2470"]
[PlyCount "133"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 d6 5. c3 Nc6 6. Nbd2 a6 7. h3 Ba7 8. Bb3 h6 9. Qe2 Be6 10. Nf1 Qd7 11. Ba4 b5 12. Bb3 0-0 13. g4 Nh7 14. Ng3 d5 15. Nf5 Rad8 16. Bd2 dxe4 17. dxe4 Na5 18. Nxe5 Qe8 19. Bxe6 Qxe6 20. Bf4 c5 21. Nf3 Nc4 22. 0-0 Nxb2 23. Qxb2 Qxe4 24. c4 f6 25. Bg3 Qxf3 26. cxb5 axb5 27. Qxb5 Ng5 28. Qb3+ Qxb3 29. axb3 Bb8 30. Ne7+ Kh7 31. Nc6 Bxg3 32. Nxd8 Rxd8 33. fxg3 Rd2 34. Rf5 Nxh3+ 35. Kf1 Rb2 36. Ra3 Rc2 37. Ke1 Kg6 38. Rf3 Ng5 39. Re3 h5 40. gxh5+ Kxh5 41. Kd1 Rb2 42. Ra5 Kg4 43. Rxc5 f5 44. Kc1 Ra2 45. Rc2 Ra7 46. b4 Ne4 47. Rc4 Kh3 48. b5 Nxg3 49. b6 Rb7 50. Rb3 g5 51. Rc7 Rb8 52. b7 f4 53. Rc8 Rxb7 54. Rxb7 f3 55. Rf7 g4 56. Kd2 Nf1+ 57. Ke1 Kg2 58. Rc2+ Kg1 59. Rc4 Ne3 60. Re4 Ng2+ 61. Kd2 f2 62. Ke2 g3 63. Rg4 Kh2 64. Rf8 Kh3 65. Rg7 Kh2 66. Rf3 Nh4 67. Rfxg3 1-0

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.24"]
[Round "10"]
[White "Filev, Georgi"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "2210"]
[BlackElo "2470"]
[PlyCount "54"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6 7. 0-0 Bg7 8. Re1 Nf6 9. Nbd2 0-0 10. Nf1 b5 11. Bc2 exd4 12. cxd4 Bg4 13. Be3 Re8 14. h3 Bc8 15. Ng3 Bb7 16. d5 Nb8 17. Rc1 c6 18. dxc6 Nxc6 19. Bb1 Rc8 20. Qd2 Ne5 21. Nxe5 dxe5 22. Rxc8 Qxc8 23. Rc1 Qa8 24. f3 Rd8 25. Qc2 Rc8 26. Qd2 Rd8 27. Qc2 Rc8 1/2-1/2

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.24"]
[Round "8"]
[White "Kuzubov, Yuriy"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2605"]
[BlackElo "2470"]
[PlyCount "110"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Be2 0-0 6. 0-0 e5 7. dxe5 dxe5 8. c3 Qe7 9. Qc2 Nh5 10. Re1 Nc6 11. Nc4 Nf4 12. Bf1 Bg4 13. Nfd2 Rad8 14. Ne3 Be6 15. Nf3 Qf6 16. Kh1 Ne7 17. Ng1 Rd7 18. g3 Nh5 19. Bg2 Rfd8 20. Nf3 h6 21. Kg1 Nc6 22. Nd2 Qe7 23. Nd5 Qe8 24. Nc4 Ne7 25. Nce3 c6 26. Nxe7+ Qxe7 27. Bf1 Nf6 28. Nc4 Bg4 29. Be3 Qe6 30. Nd2 Bf8 31. Bc4 Qe8 32. b4 b6 33. a4 Be6 34. Bxe6 Qxe6 35. f3 c5 36. b5 c4 37. Nf1 Rd3 38. a5 Nd7 39. axb6 axb6 40. Kg2 Nc5 41. Bf2 h5 42. Rad1 Qd7 43. Rxd3 cxd3 44. Qb1 Qe6 45. Rd1 Rc8 46. Bxc5 Bxc5 47. Qxd3 Qb3 48. c4 Qa2+ 49. Rd2 Qa1 50. Rd1 Qa2+ 51. Rd2 Qa1 52. Ne3 Ra8 53. Nd5 Kg7 54. Rd1 Ra2+ 55. Kh3 Qb2 0-1

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.23"]
[Round "2"]
[White "Andries, Alf"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "2040"]
[BlackElo "2470"]
[PlyCount "93"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nc3 Bb4 7. Bd3 d5 8. exd5 0-0 9. 0-0 cxd5 10. Bg5 c6 11. Na4 h6 12. Bh4 Be7 13. c4 Be6 14. cxd5 cxd5 15. Rc1 Ne4 16. Bxe7 Qxe7 17. Qe2 Qb4 18. b3 Rac8 19. Bxe4 dxe4 20. Qe3 a5 21. Nc5 Bf5 22. h3 Rfd8 23. Rc4 Qb6 24. Rfc1 Bg6 25. Nxe4 Qxe3 26. fxe3 Rxc4 27. Rxc4 Re8 28. Nc5 Rxe3 29. Ra4 f5 30. Rxa5 Re2 31. b4 Bf7 32. Nd3 Bxa2 33. Rxf5 Bb1 34. Rd5 Rd2 35. Nf4 Rb2 36. Rd4 Kf7 37. Nd5 g5 38. Nc3 Bf5 39. Nd1 Rb1 40. Kf2 Ke6 41. Ne3 Bg6 42. Rc4 Be8 43. Re4+ Kf7 44. Nf5 Bc6 45. Re2 h5 46. Nd4 Ba4 47. b5 0-1

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.23"]
[Round "3"]
[White "Costachi, Mihnea"]
[Black "Dragomirescu, Angela"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2470"]
[BlackElo "2111"]
[PlyCount "160"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. Nc3 d6 2. d4 e5 3. Nf3 Nd7 4. e4 Ngf6 5. g4 Nxg4 6. Rg1 Ngf6 7. Be3 c6 8. Qd2 b5 9. a3 Bb7 10. Bh3 Qc7 11. Rd1 g6 12. Bg5 Be7 13. Bxd7+ Nxd7 14. Bxe7 Kxe7 15. h4 a6 16. h5 exd4 17. Nxd4 Rae8 18. Qg5+ f6 19. Qg3 Kd8 20. Nde2 Ne5 21. f4 Nc4 22. b3 Nxa3 23. hxg6 hxg6 24. Qxg6 Rhf8 25. Kd2 b4 26. Na4 Nb5 27. Kc1 c5 28. Ng3 Nd4 29. Rxd4 cxd4 30. Rd1 Rg8 31. Qxf6+ Qe7 32. Qxe7+ Rxe7 33. Nf5 Rxe4 34. Nxd6 Re7 35. Rxd4 Kc7 36. Nxb7 Kxb7 37. Rxb4+ Kc7 38. Nc5 Rg1+ 39. Kb2 a5 40. Rb5 Rg2 41. Nd3 Re3 42. Kc3 Ree2 43. Rc5+ Kb6 44. Kd4 Rxc2 45. Rh5 Rcd2 46. Rh6+ Kb5 47. Kc3 Rc2+ 48. Kd4 Rcd2 49. Rh5+ Kb6 50. Rd5 Rg3 51. Kc3 Rgg2 52. Kc4 Rc2+ 53. Kd4 Rcd2 54. Rd6+ Kb5 55. f5 Rg3 56. Ke4 Rgg2 57. f6 Rd1 58. Rd5+ Kb6 59. f7 Rf1 60. Ne5 Re2+ 61. Kd3 Ref2 62. Rd6+ Kc5 63. Ra6 Kb5 64. Ra7 Rf5 65. Ke4 R1f4+ 66. Kd5 Rf6 67. Rb7+ Ka6 68. Re7 Rf1 69. Kc5 R1f5 70. Kd4 Rf4+ 71. Ke3 Rf1 72. Kd4 R1f4+ 73. Kd5 R4f5 74. Re6+ Rxe6 75. Kxe6 Rf1 76. Ng4 Rxf7 77. Kxf7 Kb5 78. Ne5 Kb4 79. Nc6+ Kxb3 80. Nxa5+ Kb4 1/2-1/2

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.23"]
[Round "1"]
[White "Costachi, Mihnea"]
[Black "Stoica, Vlad V"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "2470"]
[BlackElo "1436"]
[PlyCount "47"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Bc4 Bc5 4. d3 d6 5. f4 0-0 6. Nf3 Nc6 7. Na4 Re8 8. Nxc5 dxc5 9. fxe5 Nxe5 10. Nxe5 Rxe5 11. 0-0 Bg4 12. Qe1 h6 13. Qg3 Qe7 14. Bf4 Rh5 15. e5 Nh7 16. Qxg4 Rh4 17. Bxf7+ Kh8 18. Qg3 g5 19. Bd2 Nf8 20. e6 c4 21. Qe5+ Kh7 22. Qf5+ Kh8 23. Bc3+ Qf6 24. Bxf6# 1-0

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.23"]
[Round "4"]
[White "Pisu, Robert Daniel"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "2154"]
[BlackElo "2470"]
[PlyCount "86"]
[EventDate "2024.03.23"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Re1 Nc6 7. e4 e5 8. c3 Re8 9. dxe5 Nxe5 10. Nxe5 dxe5 11. h3 Be6 12. Be3 Qe7 13. Qc2 h5 14. Nd2 Qf8 15. Nf3 Nd7 16. Rad1 Bh6 17. Ng5 Bxg5 18. Bxg5 f6 19. Be3 Red8 20. f4 Bf7 21. Rf1 Qe7 22. b3 a5 23. Qf2 Kg7 24. h4 a4 25. Bh3 exf4 26. gxf4 axb3 27. axb3 Bxb3 28. Rb1 Bc4 29. Rfd1 b5 30. e5 f5 31. e6 Qxe6 32. Bd4+ Kh7 33. Re1 Qf7 34. Bg2 Ra2 35. Qg3 c5 36. Qg5 Re8 37. Bf2 Ree2 38. Rxe2 Bxe2 39. Bc6 Nf6 40. Bxc5 Bd3 41. Bd4 Bxb1 42. Bxf6 Qb3 43. Bf3 Be4 0-1

[Event "Titled Tuesday intern op 13th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.13"]
[Round "4"]
[White "Costachi, Mihnea"]
[Black "Girsh, Daniel"]
[Result "0-1"]
[ECO "C27"]
[WhiteElo "2471"]
[BlackElo "2194"]
[PlyCount "126"]
[EventDate "2024.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB08_2024"]
[SourceDate "2024.02.21"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.21"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Bc4 Bb4 4. Nge2 0-0 5. 0-0 c6 6. a3 Bxc3 7. Nxc3 d5 8. exd5 cxd5 9. Bb3 d4 10. Ne2 d3 11. cxd3 Nc6 12. d4 Nxd4 13. Nxd4 Qxd4 14. d3 Bf5 15. Be3 Qxd3 16. Qxd3 Bxd3 17. Rfd1 e4 18. f3 Be2 19. Rd4 exf3 20. gxf3 Bxf3 21. Rf1 Bc6 22. Bg5 Rfd8 23. Bxf6 gxf6 24. Rxd8+ Rxd8 25. Rxf6 Bd5 26. Bxd5 Rxd5 27. Rf2 Kf8 28. Re2 Rd3 29. Kf2 h5 30. Kg2 h4 31. h3 Rg3+ 32. Kh2 Rd3 33. Kg2 Kg7 34. Rf2 Kg6 35. Rc2 f5 36. Kh2 Kg5 37. Rg2+ Kf4 38. Rf2+ Rf3 39. Rc2 Rb3 40. Rc4+ Kg5 41. Rc2 a5 42. Kg2 a4 43. Kh2 b5 44. Rf2 f4 45. Rc2 f3 46. Kg1 Kf4 47. Kf2 Re3 48. Rd2 Re2+ 49. Rxe2 fxe2 50. Kxe2 Kg3 51. Ke3 Kxh3 52. Kf3 Kh2 53. Kf2 h3 54. Kf1 Kg3 55. Kg1 Kf3 56. Kh2 Ke3 57. b3 Kd3 58. bxa4 bxa4 59. Kxh3 Kc3 60. Kg3 Kb3 61. Kf2 Kxa3 62. Ke2 Kb2 63. Kd2 a3 0-1

[Event "Titled Tuesday intern op 13th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.13"]
[Round "1"]
[White "Costachi, Mihnea"]
[Black "Hoffmann, Asa"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2471"]
[BlackElo "2185"]
[PlyCount "93"]
[EventDate "2024.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB08_2024"]
[SourceDate "2024.02.21"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.21"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 d6 3. d4 c6 4. Nf3 Bg4 5. Be2 e6 6. 0-0 d5 7. h3 Bh5 8. exd5 cxd5 9. Ne5 Bxe2 10. Nxe2 Nc6 11. Nd3 Bd6 12. c3 0-0 13. Bg5 h6 14. Bh4 Be7 15. Re1 Ne4 16. Bxe7 Qxe7 17. Nef4 Qd6 18. Qb3 Na5 19. Qb4 Qxb4 20. Nxb4 Nc4 21. Re2 a5 22. Nbd3 a4 23. a3 Rfe8 24. f3 Ng3 25. Rf2 g5 26. Ne2 Nf5 27. f4 Ncd6 28. fxg5 hxg5 29. g4 Nh4 30. Raf1 Rf8 31. Ng3 Ra6 32. Nc5 Rc6 33. Nd7 Rd8 34. Ne5 Rc7 35. Nh5 Ne4 36. Rxf7 Rxf7 37. Rxf7 Rf8 38. Rg7+ Kh8 39. Nf7+ Rxf7 40. Rxf7 Ng6 41. Rxb7 e5 42. Ra7 exd4 43. cxd4 Nf4 44. Nxf4 gxf4 45. Rxa4 f3 46. Ra7 f2+ 47. Kg2 1-0

[Event "Titled Tuesday intern op 13th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.13"]
[Round "2"]
[White "Podetti, Davide"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "2285"]
[BlackElo "2471"]
[PlyCount "74"]
[EventDate "2024.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB08_2024"]
[SourceDate "2024.02.21"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Ne8 13. a4 b4 14. Nbd2 g6 15. cxb4 cxb4 16. Bd3 f5 17. Qe2 f4 18. Nc4 Nb3 19. Rb1 g5 20. Nh2 Nd4 21. Qd1 Ng7 22. Bd2 a5 23. Rc1 Qd8 24. Nf3 Nxf3+ 25. Qxf3 h5 26. Be2 g4 27. hxg4 hxg4 28. Qb3 Bg5 29. g3 Nh5 30. Bf1 Ra7 31. Bg2 Raf7 32. Nxa5 Qxa5 33. Bxb4 Qd8 34. Rc6 fxg3 35. fxg3 Be7 36. Qd1 Bd7 37. Rc2 Qb6+ 0-1

[Event "Titled Tuesday intern op 13th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.13"]
[Round "3"]
[White "Radjabov, Teimour"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2723"]
[BlackElo "2471"]
[PlyCount "87"]
[EventDate "2024.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB08_2024"]
[SourceDate "2024.02.21"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.21"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 b6 5. Bg2 Bb7 6. 0-0 0-0 7. c4 d6 8. Nc3 Ne4 9. Qc2 Nxc3 10. Bxc3 e5 11. Rfd1 Nc6 12. e3 Qe7 13. d4 e4 14. Nd2 f5 15. b4 h5 16. b5 Nd8 17. a4 h4 18. a5 hxg3 19. hxg3 Nf7 20. Ra2 Ng5 21. d5 Rae8 22. Rda1 Bc8 23. Qb2 Bxc3 24. Qxc3 Nf7 25. Nb3 Ne5 26. Nd4 g5 27. axb6 axb6 28. Ra7 f4 29. exf4 gxf4 30. Bxe4 Rf7 31. Ne6 Bxe6 32. dxe6 Rg7 33. Ra8 fxg3 34. Rxe8+ Qxe8 35. Ra8 gxf2+ 36. Kxf2 Qxa8 37. Bxa8 Kf8 38. Bd5 Ke7 39. c5 bxc5 40. Qa5 Kf6 41. Qa8 Ng6 42. Qd8+ Ke5 43. Qg5+ Kd4 44. Ba2 1-0

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "5"]
[White "Costachi, Mihnea"]
[Black "Gutierrez Olivares, Daniel"]
[Result "1-0"]
[ECO "D01"]
[WhiteElo "2471"]
[BlackElo "2354"]
[PlyCount "59"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. Nc3 e6 2. d4 Nf6 3. Bg5 d5 4. e3 Be7 5. f4 a6 6. Nf3 Nbd7 7. Ne5 c5 8. Be2 b5 9. 0-0 Nxe5 10. fxe5 Nd7 11. Bxe7 Qxe7 12. Qe1 0-0 13. Qg3 cxd4 14. exd4 Qb4 15. Rf4 Qxb2 16. Raf1 b4 17. Nd1 Qxc2 18. Bd3 Qd2 19. Nf2 f5 20. exf6 Rxf6 21. Ng4 Rxf4 22. Rxf4 Bb7 23. Nh6+ Kh8 24. Nf7+ Kg8 25. Bxh7+ Kf8 26. Nd8+ Ke7 27. Nxb7 Qd1+ 28. Rf1 Qxd4+ 29. Kh1 Nf6 30. Qxg7+ 1-0

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "10"]
[White "Costachi, Mihnea"]
[Black "Kejna, Piotr"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2471"]
[BlackElo "2283"]
[PlyCount "127"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 d6 3. d4 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 a6 7. a4 b6 8. Re1 Bb7 9. Bf1 c5 10. d5 Nbd7 11. Nd2 Ne8 12. Nc4 Ne5 13. Ne3 Nc7 14. f4 Nd7 15. Kh1 Qb8 16. Qg4 Nf6 17. Qf3 b5 18. axb5 axb5 19. Rxa8 Bxa8 20. Ne2 e6 21. Rd1 exd5 22. Nxd5 Nfxd5 23. exd5 Qb7 24. f5 Nxd5 25. Nf4 Nxf4 26. Qxb7 Bxb7 27. Bxf4 Bxb2 28. Bxb5 d5 29. Bd6 Rc8 30. Rb1 Ra8 31. fxg6 hxg6 32. Bxc5 Ra1 33. Rxa1 Bxa1 34. Kg1 Be5 35. g3 Kg7 36. Kf2 Kf6 37. Ke3 Ke6 38. Be8 g5 39. Bb5 f5 40. Bd3 f4+ 41. Kf2 fxg3+ 42. hxg3 Bd6 43. Be3 Be7 44. g4 Bf6 45. Bd2 Kd6 46. Bb4+ Ke6 47. Bf5+ Kf7 48. Ke3 Ba6 49. Bc5 Bc4 50. Bd4 Bxd4+ 51. Kxd4 Kf6 52. Bd7 Ba2 53. Bb5 Ke6 54. Bd3 Kd6 55. Bf5 Bc4 56. Bh7 Be2 57. Bf5 Bd1 58. c3 Bf3 59. Bc8 Bd1 60. Bf5 Bf3 61. Ke3 Bd1 62. Kd2 Bf3 63. Ke3 Bd1 64. Kd4 1/2-1/2

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "4"]
[White "Costachi, Mihnea"]
[Black "Laddha, Shubh Jayesh"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2471"]
[BlackElo "2324"]
[PlyCount "98"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. Nh3 d5 2. Nf4 e5 3. Nd3 e4 4. Nf4 Nc6 5. d3 exd3 6. cxd3 Nf6 7. g3 Bd6 8. Bg2 0-0 9. 0-0 Ne7 10. Nc3 c6 11. b3 Ng6 12. Nxg6 hxg6 13. Bb2 Re8 14. e4 dxe4 15. dxe4 Bg4 16. Qc2 Qc8 17. Rfe1 Bh3 18. Bh1 Be5 19. Rad1 Qc7 20. f4 Qb6+ 21. Qf2 Bc7 22. Na4 Qa5 23. Qc5 b5 24. e5 bxa4 25. Qxa5 Bxa5 26. Bxc6 Bb6+ 27. Bd4 Ng4 28. bxa4 Bxd4+ 29. Rxd4 Red8 30. Rd6 Rac8 31. Bd7 Rc2 32. Bxg4 Rxd6 33. Bxh3 Rdd2 34. e6 fxe6 35. Bxe6+ Kh7 36. f5 Rg2+ 37. Kh1 Rxh2+ 38. Kg1 Rcg2+ 39. Kf1 Rxa2 40. fxg6+ Kxg6 41. Bxa2 Rxa2 42. Re6+ Kf5 43. Ra6 Kg4 44. Rg6+ Kf3 45. Ke1 Rxa4 46. Rxg7 a5 47. Kd2 Rg4 48. Ra7 Kxg3 49. Rxa5 Rd4+ 1/2-1/2

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "8"]
[White "Costachi, Mihnea"]
[Black "Singh, Ojasva"]
[Result "1/2-1/2"]
[ECO "C27"]
[WhiteElo "2471"]
[BlackElo "2314"]
[PlyCount "114"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Bc4 Bc5 4. d3 c6 5. Nf3 d6 6. Be3 Bb6 7. h3 0-0 8. 0-0 Nbd7 9. Bb3 Nc5 10. Bg5 h6 11. Bh4 Nxb3 12. axb3 g5 13. Bg3 Nh5 14. d4 g4 15. hxg4 Bxg4 16. Ne2 Bxf3 17. gxf3 Qg5 18. Qc1 Nxg3 19. fxg3 Qxc1 20. Raxc1 Bxd4+ 21. Nxd4 exd4 22. Rcd1 c5 23. c3 dxc3 24. bxc3 Rfd8 25. Rd5 a5 26. c4 a4 27. bxa4 Rxa4 28. e5 Rxc4 29. exd6 Rd4 30. Rxc5 R8xd6 31. Rc8+ Kg7 32. Rb8 b6 33. Rf2 h5 34. Kg2 h4 35. g4 Rh6 36. Kh3 Rf4 37. Kg2 Rhf6 38. Kh3 Rxf3+ 39. Rxf3 Rxf3+ 40. Kxh4 Rb3 41. Kg5 Rb5+ 42. Kf4 Kf6 43. Rb7 Ke6 44. Ke4 Rb4+ 45. Kf3 f6 46. Kg3 Ke5 47. Re7+ Kd6 48. Rf7 Ke6 49. Rb7 b5 50. Rb8 Rb1 51. Kf4 b4 52. Rb6+ Kf7 53. Kf5 Rf1+ 54. Ke4 Rg1 55. Kf5 Rf1+ 56. Ke4 Re1+ 57. Kf5 Rf1+ 1/2-1/2

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "2"]
[White "Costachi, Mihnea"]
[Black "Tokman, Ariel"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2471"]
[BlackElo "2399"]
[PlyCount "134"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. Nc3 d5 2. d4 c6 3. Bf4 Bf5 4. e3 Nf6 5. Bd3 Bg6 6. Nf3 Nbd7 7. 0-0 e6 8. Qe2 Be7 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Nf6 12. Bxg6 hxg6 13. Rad1 0-0 14. Rfe1 a5 15. c3 a4 16. a3 Qd5 17. Qd3 Rfd8 18. Be5 b5 19. Qe3 Qb3 20. Rd2 Rd5 21. Ng5 Ng4 22. Qf4 Bxg5 23. Qxg5 Nxe5 24. dxe5 Rxd2 25. Qxd2 Qd5 26. Qxd5 exd5 27. f4 Kf8 28. Kf2 Ke7 29. g4 Rh8 30. Kg3 Ke6 31. h4 c5 32. Rd1 Rb8 33. h5 gxh5 34. gxh5 b4 35. cxb4 cxb4 36. Kg4 bxa3 37. bxa3 Rb3 38. Rc1 Rxa3 39. Rc6+ Ke7 40. Rc7+ Ke6 41. Rc6+ Ke7 42. Kf5 Rh3 43. Kg4 Rh1 44. Ra6 Ra1 45. Rd6 Rd1 46. Ra6 Ra1 47. Kf5 Rh1 48. Ra7+ Ke8 49. Kg4 Rg1+ 50. Kf5 Rh1 51. Rxa4 Rxh5+ 52. Kg4 Rh1 53. Rd4 g6 54. Rxd5 Rg1+ 55. Kf3 Ke7 56. Rd6 Rf1+ 57. Kg3 Rg1+ 58. Kf2 Rg4 59. Kf3 Rg1 60. Ra6 Rf1+ 61. Kg3 Rg1+ 62. Kf2 Rg4 63. Kf3 Rg1 64. Ra7+ Ke6 65. Ra6+ Ke7 66. Kf2 Rg4 67. Kf3 Rg1 1/2-1/2

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "7"]
[White "Costachi, Mihnea"]
[Black "Vakhidov, Shahzod"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2471"]
[BlackElo "2312"]
[PlyCount "73"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. Nc3 c5 2. Nf3 g6 3. h4 h5 4. d4 Bg7 5. d5 d6 6. e4 Bg4 7. Be2 Nd7 8. Ng5 Ngf6 9. f3 Ne5 10. fxg4 Nfxg4 11. Bf4 Qb6 12. Bb5+ Kf8 13. a4 Qa5 14. 0-0 Bf6 15. Be2 Qb4 16. Qd2 Kg7 17. Nb5 a6 18. Qxb4 cxb4 19. Nd4 Rhc8 20. Bxe5 dxe5 21. Bxg4 hxg4 22. Nb3 Rxc2 23. Rf2 Rc4 24. d6 Bxg5 25. hxg5 exd6 26. Rd1 Rd8 27. Rfd2 Rxe4 28. Nc5 Rf4 29. Nxb7 Rb8 30. Nxd6 b3 31. Re2 Rxa4 32. Rxe5 Ra2 33. Nc4 Rb4 34. Nd6 Rxb2 35. Rf1 Rd4 36. Rxf7+ Kg8 37. Re8# 1-0

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "3"]
[White "Doshi, Moksh Amitbhai"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2353"]
[BlackElo "2471"]
[PlyCount "127"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. Be2 Na6 7. 0-0 e5 8. Re1 c6 9. Bf1 Re8 10. Qc2 exd4 11. Nxd4 Nc5 12. Nb3 Nxb3 13. axb3 Ng4 14. h3 Ne5 15. Be3 b6 16. Red1 Qe7 17. Bxb6 Bxh3 18. Be3 Bg4 19. f3 Be6 20. Ra5 f5 21. Rda1 fxe4 22. Rxa7 Rxa7 23. Rxa7 Qd8 24. Nxe4 d5 25. Ng5 Bf5 26. Qf2 d4 27. Bd2 Qb6 28. Ra3 Bf8 29. b4 Qd8 30. c5 Bh6 31. Ne6 Rxe6 32. Bxh6 Re8 33. Ra7 Nf7 34. Bf4 Qd5 35. Qh4 d3 36. Qf6 Bd7 37. Qc3 g5 38. Qxd3 Be6 39. Qxd5 Bxd5 40. Bd2 h5 41. b5 cxb5 42. Bxb5 Rc8 43. b4 g4 44. Bd7 Rd8 45. fxg4 Ne5 46. Bf5 hxg4 47. Bc3 Nc4 48. Rg7+ Kf8 49. Rxg4 Ne3 50. Rf4 Nxf5 51. Rxf5+ Kg8 52. Rg5+ Kf7 53. Rf5+ Ke6 54. Rf2 Bc6 55. Re2+ Kf5 56. Re5+ Kf4 57. Re6 Rd1+ 58. Kf2 Bb5 59. g3+ Kg4 60. Rb6 Bc4 61. c6 Rc1 62. Bd4 Bd5 63. Bc5 Rc2+ 64. Ke3 1-0

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "11"]
[White "Maltsevskaya, Aleksandra"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2374"]
[BlackElo "2471"]
[PlyCount "109"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c3 d6 4. Nf3 Nf6 5. Bd3 0-0 6. 0-0 Nc6 7. h3 e5 8. Bg5 h6 9. Bh4 g5 10. Bg3 g4 11. dxe5 gxf3 12. exf6 fxg2 13. Kxg2 Qxf6 14. f4 Bd7 15. Nd2 Rae8 16. Kh2 Kh8 17. Qh5 Qg6 18. Qf3 f5 19. Rae1 fxe4 20. Bxe4 Bf5 21. Rg1 Bxe4 22. Nxe4 Qf5 23. Qg4 h5 24. Qxf5 Rxf5 25. Ng5 Ref8 26. Ne6 R8f7 27. Bh4 Bf6 28. Ng5 Rf8 29. Kg3 Ne5 30. fxe5 Bxg5 31. Bxg5 Rxg5+ 32. Kh4 Rxe5 33. Rxe5 dxe5 34. Kxh5 Rf2 35. Re1 Kg7 36. Rxe5 Kf6 37. Re8 Rxb2 38. Rc8 c6 39. a4 Rb3 40. Rc7 Kf5 41. h4 a5 42. Kh6 Ke6 43. h5 Kd6 44. Rg7 b5 45. axb5 cxb5 46. Ra7 a4 47. Kh7 Rxc3 48. h6 Rg3 49. Kh8 Kc5 50. Rg7 Rh3 51. h7 a3 52. Kg8 Rxh7 53. Rxh7 b4 54. Kg7 a2 55. Kg6 0-1

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "1"]
[White "Musalov, Ruslan"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2342"]
[BlackElo "2471"]
[PlyCount "90"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d5 4. exd5 Qxd5 5. Nf3 Nc6 6. cxd4 Bg4 7. Be2 e6 8. Nc3 Qd7 9. 0-0 Nf6 10. h3 Bh5 11. Ne5 Qxd4 12. Bxh5 Qxe5 13. Qb3 Bb4 14. Bf3 0-0 15. Bxc6 Bd6 16. f4 Qc5+ 17. Kh1 Qxc6 18. Be3 Bc5 19. Bxc5 Qxc5 20. Rac1 Nh5 21. Kh2 Qe3 22. Nb5 Qxb3 23. axb3 a6 24. Nd6 b5 25. Ne4 Nf6 26. Nxf6+ gxf6 27. Rc6 Rfc8 28. Rfc1 Rxc6 29. Rxc6 Rd8 30. Rxa6 Rd3 31. f5 exf5 32. Rxf6 Rxb3 33. Rxf5 Rxb2 34. Rc5 Kg7 35. h4 Rb1 36. Kg3 b4 37. Rb5 b3 38. Rb6 Kf8 39. Kg4 Ke7 40. Kh5 b2 41. g4 Kf8 42. Kh6 Rh1 43. Rb8+ Ke7 44. Rb7+ Kf6 45. Rxb2 Rxh4# 0-1

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "9"]
[White "Piesik, Piotr"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2426"]
[BlackElo "2471"]
[PlyCount "112"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 d6 6. Nbd2 Nbd7 7. e4 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qe2 Qe7 11. Nc4 Bg4 12. f3 Be6 13. Be3 Qb4 14. b3 Bxc4 15. bxc4 Qa3 16. Rfb1 b6 17. c5 Rfd8 18. Rb3 Qa5 19. a4 Nd7 20. Qb5 Qxb5 21. axb5 Nxc5 22. Bxc5 bxc5 23. Bf1 Rd2 24. Rc3 Bh6 25. Kh1 Bf8 26. Bc4 Bd6 27. Bd3 h5 28. h4 Kg7 29. Rc4 g5 30. hxg5 h4 31. g4 Kg6 32. f4 h3 33. Rf1 h2 34. fxe5 Bxe5 35. Rxc5 Bd6 36. e5+ Rxd3 37. exd6 Rxd6 38. Rxc7 Kxg5 39. Rcxf7 Kxg4 40. Rg7+ Kh5 41. Rf2 Kh6 42. Rc7 a6 43. Rxh2+ Kg6 44. Rg2+ Kf6 45. Rf2+ Ke6 46. bxa6 Rdxa6 47. Rc3 Rg8 48. Rg2 Ra1+ 49. Kh2 Rh8+ 50. Rh3 Rxh3+ 51. Kxh3 Kd5 52. Re2 Kc4 53. Kg3 Kc3 54. Kf3 Rc1 55. Ke4 Rxc2 56. Rxc2+ Kxc2 1/2-1/2

[Event "Titled Tuesday intern op 06th Feb Early"]
[Site "Chess.com INT"]
[Date "2024.02.06"]
[Round "6"]
[White "Sadykov, Ramil"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "2313"]
[BlackElo "2471"]
[PlyCount "78"]
[EventDate "2024.02.06"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB07_2024"]
[SourceDate "2024.02.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.14"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 Nc6 4. Be3 d6 5. Nc3 e5 6. Nge2 exd4 7. Nxd4 Nxd4 8. Bxd4 Nf6 9. g3 0-0 10. Bg2 Re8 11. 0-0 c6 12. Qd3 Be6 13. Rad1 Qe7 14. b3 Red8 15. h3 h5 16. Kh1 h4 17. g4 Ne8 18. Be3 Nc7 19. f4 f5 20. exf5 gxf5 21. g5 d5 22. cxd5 Nxd5 23. Nxd5 Bxd5 24. Qe2 Re8 25. Rxd5 cxd5 26. Bxd5+ Kf8 27. Qh5 Rad8 28. Bc5 Rxd5 29. Bxe7+ Rxe7 30. Rc1 Rd8 31. Qh7 Rf7 32. Qxh4 Kg8 33. g6 Rfd7 34. Qh5 Rd5 35. h4 Kf8 36. Qh7 Rd4 37. h5 Rxf4 38. h6 Rh4+ 39. Kg2 Rxh6 0-1

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "7"]
[White "Costachi, Mihnea"]
[Black "Cuenca Jimenez, Jose Fernando"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2471"]
[BlackElo "2514"]
[PlyCount "69"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. Nc3 c5 2. Nf3 Nc6 3. g3 e5 4. Bg2 g6 5. 0-0 Bg7 6. d3 Nge7 7. e4 0-0 8. Be3 d6 9. Qd2 f5 10. Bh6 f4 11. Bxg7 Kxg7 12. Ne2 fxg3 13. fxg3 h6 14. Rf2 Bg4 15. Raf1 Qd7 16. Nc3 Bxf3 17. Rxf3 Rxf3 18. Rxf3 Nd4 19. Rf1 g5 20. Nd1 Rf8 21. Rxf8 Kxf8 22. c3 Ndc6 23. Ne3 Qe6 24. b3 b5 25. Nf5 b4 26. Bh3 bxc3 27. Qxc3 Qf6 28. Qc4 Nxf5 29. Bxf5 Nd4 30. g4 h5 31. Qa6 Qe7 32. gxh5 Kg7 33. Qc8 Qf7 34. h6+ Kf6 35. Qd8+ 1-0

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "9"]
[White "Costachi, Mihnea"]
[Black "Erigaisi, Arjun Kumar"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2471"]
[BlackElo "2738"]
[PlyCount "96"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. Nc3 g6 2. d4 Bg7 3. e4 d6 4. Be2 Nc6 5. Be3 e5 6. dxe5 dxe5 7. Qxd8+ Nxd8 8. 0-0-0 c6 9. Bc4 Nf6 10. f3 Be6 11. Bxe6 Nxe6 12. Nge2 h5 13. Na4 Bh6 14. Bxh6 Rxh6 15. b3 h4 16. h3 Ke7 17. Nb2 Rh5 18. Nd3 Rg5 19. g4 hxg3 20. h4 Rh5 21. Nxg3 Rh7 22. Nxe5 Rah8 23. Kd2 Rxh4 24. Rxh4 Rxh4 25. Rh1 Rxh1 26. Nxh1 Nh5 27. Ke3 c5 28. c3 Nhf4 29. Ng3 f6 30. Nd3 Nxd3 31. Kxd3 Kd6 32. Ke3 Ke5 33. Ne2 g5 34. Nc1 Nf4 35. a4 b6 36. b4 c4 37. b5 f5 38. exf5 Nd5+ 39. Kd2 Kf4 40. Ne2+ Kxf3 41. Nd4+ Kf2 42. Nc6 g4 43. Nxa7 g3 44. a5 g2 45. axb6 g1Q 46. b7 Qe1+ 47. Kc2 Qxc3+ 48. Kb1 Qb3+ 0-1

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "1"]
[White "Costachi, Mihnea"]
[Black "Frayna, Janelle Mae"]
[Result "1-0"]
[ECO "C27"]
[WhiteElo "2471"]
[BlackElo "2197"]
[PlyCount "93"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 6. Qxe5 0-0 7. Nge2 Nc6 8. Qh5 g6 9. Qf3 Nf5 10. 0-0 Ncd4 11. Nxd4 Nxd4 12. Qf4 Nxb3 13. axb3 c6 14. d3 d5 15. Re1 Bd6 16. Qh6 Qf6 17. Bg5 Qg7 18. Qh4 f6 19. Bh6 Qf7 20. Bxf8 Bxf8 21. Na4 Bf5 22. Qf4 Re8 23. Nc3 a6 24. Rxe8 Qxe8 25. Qc7 Qe7 26. Qxe7 Bxe7 27. h3 Kf7 28. g4 Bd7 29. Kg2 Bd6 30. Ne2 Be5 31. d4 Bd6 32. f4 g5 33. f5 h5 34. c4 h4 35. Nc3 dxc4 36. bxc4 c5 37. d5 Be5 38. Ne4 Bd4 39. Nd6+ Ke7 40. Nxb7 Bxb2 41. Rxa6 Bd4 42. d6+ Kf7 43. Ra7 Bc6+ 44. Kf1 Ke8 45. Na5 Be4 46. Re7+ Kd8 47. Rxe4 1-0

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "5"]
[White "Costachi, Mihnea"]
[Black "Pranav, V."]
[Result "0-1"]
[ECO "C28"]
[WhiteElo "2471"]
[BlackElo "2611"]
[PlyCount "92"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. Nc3 e5 2. e4 Nf6 3. Bc4 Nc6 4. d3 Na5 5. Bb3 Nxb3 6. axb3 Bc5 7. Nf3 d6 8. Be3 Bxe3 9. fxe3 h6 10. 0-0 Be6 11. d4 Nd7 12. Qe1 g5 13. Qg3 f6 14. Nd2 0-0 15. Rf3 Qe7 16. Raf1 c6 17. h4 Kg7 18. Nc4 Bg8 19. hxg5 hxg5 20. dxe5 dxe5 21. Rd1 Nc5 22. Nd6 Bh7 23. b4 Na6 24. b5 Nc7 25. bxc6 bxc6 26. Qg4 Rad8 27. Nf5+ Bxf5 28. Qxf5 Rxd1+ 29. Nxd1 Qe6 30. Rf2 Rd8 31. Nc3 a5 32. g4 Qxf5 33. exf5 Na6 34. Ne4 Nb4 35. c3 Rd1+ 36. Kg2 Nd5 37. Kf3 a4 38. Nc5 Ra1 39. c4 Nb6 40. Rd2 Kf7 41. Ne6 Ke7 42. Nc5 Rc1 43. Ne6 Nxc4 44. Rh2 Kd6 45. Rh8 e4+ 46. Kxe4 Rg1 0-1

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "11"]
[White "Costachi, Mihnea"]
[Black "Sharapov, Evgeny"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2471"]
[BlackElo "2375"]
[PlyCount "29"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. Nc3 c5 2. Nf3 d5 3. d4 cxd4 4. Qxd4 e6 5. e4 Nc6 6. Qa4 Nf6 7. exd5 Nxd5 8. Nxd5 Qxd5 9. Bg5 Bb4+ 10. c3 Qe4+ 11. Kd1 Qd5+ 12. Kc2 Bc5 13. Rd1 Qf5+ 14. Bd3 Qd5 15. Be4 1-0

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "4"]
[White "Costachi, Mihnea"]
[Black "Van Foreest, Jorden"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2471"]
[BlackElo "2682"]
[PlyCount "89"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. Nc3 d5 2. d4 c5 3. e4 dxe4 4. Bb5+ Bd7 5. dxc5 Nf6 6. Be3 a6 7. Bxd7+ Nbxd7 8. b4 g6 9. Nge2 Bg7 10. 0-0 0-0 11. Rb1 Qc7 12. Nd5 Nxd5 13. Qxd5 Nf6 14. Qc4 Rad8 15. a4 Ng4 16. Bf4 e5 17. Bg5 Bf6 18. Bxf6 Nxf6 19. Rfd1 h5 20. Nc3 Rxd1+ 21. Rxd1 Rd8 22. Nd5 Nxd5 23. Rxd5 Rxd5 24. Qxd5 a5 25. b5 Qe7 26. b6 Qg5 27. Qd1 e3 28. c6 Qf6 29. cxb7 Qxf2+ 30. Kh1 e2 31. b8Q+ Kh7 32. Qxe2 Qxe2 33. h3 Qf1+ 34. Kh2 Qf4+ 35. Kh1 Qf1+ 36. Kh2 e4 37. b7 e3 38. Qe5 f6 39. Qe7+ Kh6 40. b8Q e2 41. Qh8+ Kg5 42. h4+ Kg4 43. Qhxf6 Qxf6 44. Qxf6 e1Q 45. Qg5# 1-0

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "6"]
[White "Grischuk, Alexander"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2732"]
[BlackElo "2471"]
[PlyCount "145"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Bf4 d5 4. e3 e6 5. Nc3 Bd6 6. Bg5 h6 7. Bh4 0-0 8. Nf3 Nbd7 9. Qc2 a6 10. a4 b6 11. cxd5 cxd5 12. Bd3 Bb7 13. 0-0 Qb8 14. Bg3 Bxg3 15. hxg3 Rc8 16. Qe2 e5 17. Bf5 Re8 18. Bxd7 Nxd7 19. Nxe5 Nxe5 20. dxe5 Qxe5 21. Rfd1 Rad8 22. Qg4 d4 23. Rxd4 Rxd4 24. Qxd4 Qxd4 25. exd4 Rd8 26. Rd1 Bd5 27. f3 f6 28. g4 Kf7 29. Kf2 Ke6 30. Ke3 Re8 31. Kd3 Kd6 32. Ne4+ Kd7 33. Rc1 Rb8 34. Rc3 a5 35. Nd2 Re8 36. Rc1 Re7 37. b3 Re8 38. Nc4 Bxc4+ 39. bxc4 Kc6 40. Rb1 Re7 41. Rd1 Re8 42. Kd2 Rd8 43. Kc2 Re8 44. Kd3 Re7 45. Rc1 Re8 46. c5 bxc5 47. Rxc5+ Kb6 48. Rb5+ Ka6 49. Rb1 Rd8 50. Re1 Rd7 51. Re6+ Kb7 52. f4 Rc7 53. f5 Kc8 54. Ra6 Rc1 55. Ra8+ Kb7 56. Rg8 Rg1 57. Rxg7+ Kc6 58. Ke4 Re1+ 59. Kf3 Kd5 60. Rd7+ Kc4 61. Rd6 Ra1 62. Rxf6 Kxd4 63. Rd6+ Ke5 64. Re6+ Kd5 65. Rxh6 Rxa4 66. Ra6 Ra1 67. Kf4 a4 68. Kg5 a3 69. f6 a2 70. Kg6 Ke5 71. g5 Rf1 72. Rxa2 Rf2 73. Rxf2 1-0

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "2"]
[White "Ismagilov, Damir"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2143"]
[BlackElo "2471"]
[PlyCount "76"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. e3 b6 4. Nd2 Bb7 5. Ngf3 g6 6. h3 Bg7 7. Bd3 0-0 8. 0-0 d6 9. c3 Nbd7 10. Bh2 Qe7 11. Qe2 a5 12. e4 e5 13. Rfe1 Nh5 14. dxe5 dxe5 15. Qe3 Rad8 16. Rad1 Nc5 17. Nc4 Nxd3 18. Rxd3 Rxd3 19. Qxd3 Ba6 20. b3 Rd8 21. Qc2 Bxc4 22. bxc4 Qd6 23. g4 Nf4 24. Bxf4 exf4 25. Re2 Qd1+ 26. Kg2 Qxc2 27. Rxc2 Rd3 28. c5 Bxc3 29. cxb6 cxb6 30. Rc1 b5 31. Ne1 Bxe1 32. Rxe1 Ra3 33. Re2 f3+ 34. Kf1 fxe2+ 35. Kxe2 Rxa2+ 36. Ke3 a4 37. Kf4 Rxf2+ 38. Kg5 Kg7 0-1

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "8"]
[White "Novozhilov, Semen"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "E14"]
[WhiteElo "2272"]
[BlackElo "2471"]
[PlyCount "74"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. b3 Nc6 6. 0-0 Be7 7. Bb2 0-0 8. c4 b6 9. Nc3 cxd4 10. exd4 Bb7 11. Qe2 dxc4 12. bxc4 Nb4 13. Bb1 Bxf3 14. Qxf3 Qxd4 15. a3 Na6 16. Qb7 Bd6 17. Qxa6 Bxh2+ 18. Kh1 Qh4 19. Rd1 Ng4 20. Ne4 Bg3+ 21. Kg1 Bxf2+ 22. Kf1 Ne3+ 23. Ke2 Qg4+ 24. Kxf2 Nxd1+ 25. Kg1 Nxb2 26. Qb5 Qd1+ 27. Kh2 Qd4 28. Qh5 g6 29. Qh4 Qe5+ 30. Kh1 Rad8 31. Nf6+ Kg7 32. Qxh7+ Kxf6 33. Bxg6 Rh8 34. Rf1+ Ke7 35. Rxf7+ Kd6 36. c5+ bxc5 37. Rd7+ Rxd7 0-1

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "3"]
[White "Pinheiro, Iung Alicio"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2270"]
[BlackElo "2471"]
[PlyCount "78"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Be2 0-0 7. Ne5 Nfd7 8. h4 Nxe5 9. Bxe5 f6 10. Bg3 e5 11. h5 Bf5 12. hxg6 Bxg6 13. Bd3 Qe7 14. Bxg6 hxg6 15. Kf1 f5 16. Bxe5 Bxe5 17. dxe5 Qxe5 18. Ne2 Nd7 19. Nf4 Kg7 20. c4 Rh8 21. Rxh8 Rxh8 22. Kg1 g5 23. Nh3 Nf6 24. cxd5 Nxd5 25. Qb3 b6 26. Rd1 Qf6 27. Qa4 a5 28. Rc1 Rc8 29. a3 Qxb2 30. Rxc6 b5 31. Qxa5 Rxc6 32. Qd8 Qa1+ 33. Kh2 Qe5+ 34. g3 Ne7 35. Qe8 Rh6 36. Kg2 g4 37. Nf4 Qe4+ 38. Kf1 Rh1+ 39. Ke2 Qc2# 0-1

[Event "Titled Tuesday intern op 09th Jan Early"]
[Site "Chess.com INT"]
[Date "2024.01.09"]
[Round "10"]
[White "Tejedor Fuente, Enrique"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2395"]
[BlackElo "2471"]
[PlyCount "92"]
[EventDate "2024.01.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB03_2024"]
[SourceDate "2024.01.17"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.17"]
[SourceQuality "1"]

1. Nc3 c5 2. Nf3 Nc6 3. a3 Nf6 4. e4 e6 5. g3 d5 6. exd5 exd5 7. Bg2 d4 8. Ne2 Bd6 9. d3 0-0 10. 0-0 Re8 11. Bf4 Bg4 12. Bxd6 Qxd6 13. h3 Bd7 14. Nd2 Ne5 15. Nf4 Bc6 16. Re1 Bxg2 17. Kxg2 Qc6+ 18. Nf3 Re7 19. b4 b6 20. bxc5 bxc5 21. g4 Rae8 22. Kg3 Qd6 23. Nxe5 Rxe5 24. Rxe5 Qxe5 25. Kf3 g5 26. Nh5 Nxh5 27. gxh5 Qh2 28. Qf1 Re6 29. Re1 Rxe1 30. Qxe1 Qxh3+ 31. Ke2 Qe6+ 32. Kf1 Qxe1+ 33. Kxe1 Kg7 34. Ke2 Kh6 35. Kf3 Kxh5 36. Ke4 Kg4 37. Kd5 h5 38. Kxc5 h4 39. Kxd4 h3 40. f3+ Kxf3 41. c4 h2 42. c5 h1Q 43. c6 Qh2 44. Kc5 Qe5+ 45. Kc4 Ke3 46. a4 a5 0-1

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "6"]
[White "Costachi, Mihnea"]
[Black "Dragicevic, Drazen"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2471"]
[BlackElo "2322"]
[PlyCount "83"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4 0-0 8. g5 Nh5 9. Bd2 dxc4 10. Bxc4 c5 11. 0-0-0 a6 12. Ne4 Be7 13. dxc5 b5 14. Bd3 Bb7 15. Kb1 Rc8 16. Bc3 g6 17. Ne5 Nxe5 18. Bxe5 Qa5 19. Rc1 Bxe4 20. Bxe4 Rxc5 21. Qxc5 Bxc5 22. Rxc5 Qb4 23. Bd4 Qd2 24. Rc2 Qb4 25. a3 Qa4 26. Rhc1 e5 27. b3 Qxb3+ 28. Bb2 b4 29. axb4 Qxb4 30. Rc4 Qb6 31. Rc8 Ng7 32. Bd5 Ne6 33. h4 Rxc8 34. Rxc8+ Kg7 35. Kc1 f6 36. Rc6 Qb5 37. gxf6+ Kh6 38. Rxe6 Qxd5 39. f7 Qc5+ 40. Kd2 Kg7 41. Rxe5 Qb4+ 42. Bc3 1-0

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "8"]
[White "Costachi, Mihnea"]
[Black "Maier, Christian"]
[Result "1-0"]
[ECO "E74"]
[WhiteElo "2471"]
[BlackElo "2260"]
[PlyCount "61"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 h6 7. Be3 c5 8. d5 b5 9. cxb5 a6 10. a4 e6 11. Nf3 exd5 12. exd5 Re8 13. 0-0 Rxe3 14. fxe3 Ng4 15. Qd2 Qe7 16. e4 Nd7 17. h3 Nge5 18. bxa6 Bxa6 19. Bxa6 Rxa6 20. Qe2 Ra5 21. Nb5 Kh7 22. b3 Nxf3+ 23. Qxf3 Ne5 24. Qf4 h5 25. Kh1 Kg8 26. Rad1 c4 27. bxc4 Nxc4 28. Rc1 Rxa4 29. Nc3 Bxc3 30. Rxc3 Ne5 31. Qf6 1-0

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "10"]
[White "Costachi, Mihnea"]
[Black "Radenic, Filip"]
[Result "1-0"]
[ECO "E18"]
[WhiteElo "2471"]
[BlackElo "2244"]
[PlyCount "131"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Re1 d6 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5 Bxg5 11. Bxb7 Bxc1 12. Rexc1 Nd7 13. Bxa8 Nxe2+ 14. Qxe2 Qxa8 15. Re1 h6 16. Qe4 Qc8 17. Qc6 Nb8 18. Qf3 Nd7 19. Rac1 Rd8 20. Qc6 Nb8 21. Qb5 Qb7 22. c5 a6 23. c6 axb5 24. cxb7 c6 25. a4 bxa4 26. Ra1 b5 27. b3 Rd7 28. bxa4 Rxb7 29. axb5 cxb5 30. Rec1 Nd7 31. Rc6 d5 32. Rb1 Kf8 33. Rc3 e5 34. dxe5 Nxe5 35. Rc5 Nf3+ 36. Kg2 Nd2 37. Rbxb5 Rxb5 38. Rxb5 d4 39. Rb4 d3 40. f3 g5 41. Kf2 f5 42. Rd4 Nb3 43. Rxd3 Nc5 44. Rd5 Ne6 45. Rxf5+ Kg7 46. Ke3 Nd8 47. Ke4 Nc6 48. Rc5 Nd8 49. Kf5 Nf7 50. Rc7 Kg8 51. Kg6 Ne5+ 52. Kxh6 Nxf3 53. h3 Ng1 54. Kg6 Kf8 55. Rh7 Ne2 56. g4 Kg8 57. Rh5 Nf4+ 58. Kxg5 Nxh5 59. Kxh5 Kg7 60. Kg5 Kh7 61. Kf6 Kg8 62. Kg6 Kh8 63. g5 Kg8 64. Kh6 Kh8 65. g6 Kg8 66. g7 1-0

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "4"]
[White "Costachi, Mihnea"]
[Black "Sarana, Alexey"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2471"]
[BlackElo "2688"]
[PlyCount "177"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bg5 h6 7. Bh4 c6 8. Qc2 Be7 9. e3 0-0 10. Bd3 Re8 11. 0-0 Ne4 12. Bxe7 Qxe7 13. Bxe4 dxe4 14. Nd2 Nf6 15. Rab1 b6 16. Qa4 Bd7 17. Qa6 c5 18. Nb3 Be6 19. dxc5 Bxb3 20. axb3 Qxc5 21. Qb5 Qxb5 22. Nxb5 Re5 23. Nd4 Rc5 24. b4 Rc4 25. b5 a5 26. bxa6 Rxa6 27. Ra1 Rxa1 28. Rxa1 Nd7 29. h3 Nc5 30. b3 Rc3 31. b4 Nd3 32. b5 g6 33. g4 Rc4 34. Ra6 Rb4 35. Rxb6 Rb2 36. Rb8+ Kg7 37. b6 Nxf2 38. b7 Nxh3+ 39. Kf1 Ng5 40. Nc6 Ne6 41. Na5 Nc5 42. Rc8 Nxb7 43. Rb8 Rb5 44. Nxb7 Rb2 45. Kg1 Kf6 46. Nc5 Rxb8 47. Nd7+ Kg5 48. Nxb8 Kxg4 49. Nd7 h5 50. Kg2 Kf5 51. Nc5 g5 52. Kg3 Ke5 53. Nd7+ Ke6 54. Nc5+ Ke5 55. Nd7+ Kf5 56. Nc5 f6 57. Nd7 Kg6 58. Nf8+ Kf7 59. Nd7 f5 60. Nc5 Ke7 61. Nb3 Kd6 62. Nd4 Ke5 63. Nc6+ Kf6 64. Nd4 Kg6 65. Ne6 h4+ 66. Kh3 Kf6 67. Nd4 Ke5 68. Nc6+ Kd5 69. Ne7+ Ke6 70. Nc6 Kf6 71. Nd4 Kg6 72. Ne6 Kf6 73. Nd4 Ke5 74. Nc6+ Kd5 75. Ne7+ Ke6 76. Nc6 f4 77. exf4 gxf4 78. Kxh4 Kd5 79. Nb4+ Kc4 80. Nc6 e3 81. Kg4 e2 82. Ne5+ Kd5 83. Nd3 Ke4 84. Ne1 Ke3 85. Nf3 Ke4 86. Ne1 Ke3 87. Nf3 Kf2 88. Kxf4 e1Q 89. Nxe1 1/2-1/2

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "12"]
[White "Costachi, Mihnea"]
[Black "Spalir, Jernej"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2471"]
[BlackElo "2354"]
[PlyCount "107"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. Qc2 h6 7. Bh4 c6 8. e3 Nbd7 9. Bd3 Nh5 10. Bxe7 Qxe7 11. Nf3 Nf4 12. Bf1 0-0 13. 0-0-0 Ne6 14. g4 b5 15. h4 b4 16. Na4 c5 17. g5 h5 18. dxc5 Ndxc5 19. Nxc5 Nxc5 20. Nd4 Bg4 21. f3 Bd7 22. Kb1 Rfc8 23. Qd2 b3 24. a3 Re8 25. Rc1 Rac8 26. Bb5 Bxb5 27. Nxb5 a6 28. Nc3 Qxe3 29. Qxe3 Rxe3 30. Nxd5 Ree8 31. Rc3 Re5 32. Nb6 Rc6 33. Na4 Nxa4 34. Rxc6 Re2 35. Rd1 Rxb2+ 36. Kc1 Ra2 37. Rd8+ Kh7 38. Rb8 Ra1+ 39. Kd2 b2 40. Rxa6 Rxa3 41. Rxa4 Rxa4 42. Rxb2 Rxh4 43. Ke3 Kg6 44. f4 Kf5 45. Rb5+ Kg4 46. Rb7 f5 47. gxf6 gxf6 48. Ke4 Kg3 49. Rb3+ Kg4 50. Rb8 Kg3 51. Rb3+ Kg4 52. Rb8 Kg3 53. Rb3+ Kg4 54. Rb8 1/2-1/2

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "11"]
[White "Fressinet, Laurent"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2637"]
[BlackElo "2471"]
[PlyCount "133"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Nc3 Nc6 7. d5 Ne5 8. Nd4 Bd7 9. f4 Nc4 10. b3 Nb6 11. e4 e5 12. dxe6 fxe6 13. Bb2 e5 14. fxe5 dxe5 15. Nf3 Qe7 16. Qe2 Ng4 17. Kh1 Qc5 18. Nd1 Rf7 19. a4 Rd8 20. h3 Nh6 21. a5 Nc8 22. Ne3 Nd6 23. Ng5 Rxf1+ 24. Rxf1 Ndf7 25. Nxf7 Nxf7 26. Nd5 c6 27. Nf6+ Bxf6 28. Rxf6 Kg7 29. Rf1 Be6 30. Qf3 Qe7 31. Bc3 Bc8 32. Qe3 c5 33. Kh2 b6 34. Rf2 b5 35. Bf1 a6 36. Qf3 Qe6 37. Bb2 Bb7 38. Bd3 c4 39. bxc4 bxc4 40. Bf1 Rd7 41. Bc3 Kg8 42. Qe2 Nd6 43. Bg2 Rf7 44. Rxf7 Kxf7 45. Qf2+ Kg7 46. Qc5 Nf7 47. Qc7 Bc6 48. h4 h5 49. Qb6 Bd7 50. Qc5 Bc6 51. Bf1 Qf6 52. Bxc4 Bxe4 53. Bxf7 Kxf7 54. Qc4+ Kg7 55. Qxe4 Qf2+ 56. Qg2 Qc5 57. Qd2 Kf7 58. Qd7+ Kf6 59. Qd2 Ke6 60. Bb4 Qc6 61. Qd3 e4 62. Qe2 Qd5 63. Qxa6+ Kf7 64. Qf1+ Kg8 65. Qf8+ Kh7 66. Qf2 Qb5 67. Qf7+ 1-0

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "9"]
[White "Goroshkov, Maksym"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2329"]
[BlackElo "2471"]
[PlyCount "83"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 0-0 5. d4 b6 6. c4 Bb7 7. Be2 d6 8. 0-0 Nbd7 9. Nc3 Ne4 10. Qc2 Nxc3 11. Bxc3 e5 12. dxe5 Nxe5 13. Nxe5 dxe5 14. Rfd1 Qg5 15. Bf1 Rad8 16. Rxd8 Rxd8 17. Rd1 h5 18. Rxd8+ Qxd8 19. Bd3 a5 20. h3 Qd6 21. Be4 Bc8 22. Qd2 Qxd2 23. Bxd2 Kf8 24. c5 Ke7 25. b4 axb4 26. Bxb4 Ke6 27. cxb6 cxb6 28. Bc2 Bb7 29. e4 f5 30. f3 fxe4 31. fxe4 Bh6 32. Kf2 Bc1 33. Kf3 Kf6 34. Bd6 Ba6 35. Bc7 Bc4 36. a4 b5 37. axb5 Bxb5 38. Bd8+ Kg7 39. g4 Bf1 40. gxh5 Bxh3 41. hxg6 Kxg6 42. Bb3 1/2-1/2

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "5"]
[White "Herega, Nejc"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2257"]
[BlackElo "2471"]
[PlyCount "68"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 Bf5 8. Nh4 Bd7 9. b3 Qc8 10. Re1 Bh3 11. Bh1 e5 12. d5 Ne7 13. Be3 Ng4 14. Bg5 f6 15. Bd2 f5 16. Nf3 f4 17. Ne4 h6 18. Bc3 g5 19. Bg2 Bxg2 20. Kxg2 Qf5 21. Qd3 Ng6 22. h3 Nf6 23. Nxf6+ Qxf6 24. Qe4 h5 25. g4 Ne7 26. Rg1 h4 27. Nd2 Kf7 28. f3 Qg6 29. Qxg6+ Kxg6 30. Ne4 Ng8 31. Rac1 Nf6 32. Rgd1 Rfd8 33. Bb2 b6 34. Rd3 a5 1/2-1/2

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "13"]
[White "Kahleys, Kevin"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2216"]
[BlackElo "2471"]
[PlyCount "122"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nc6 7. Nc3 Bf5 8. Ne1 Qc8 9. e4 Bh3 10. f3 e5 11. Nc2 Bxg2 12. Kxg2 exd4 13. Nxd4 Nxd4 14. Qxd4 Re8 15. Qd3 Nd7 16. Qc2 Ne5 17. b3 h5 18. h4 Nc6 19. Bb2 Ne7 20. Nd5 Nxd5 21. cxd5 Bxb2 22. Qxb2 c5 23. dxc6 bxc6 24. Rfd1 Qe6 25. Rd2 d5 26. exd5 cxd5 27. Rad1 Rad8 28. Qd4 Qa6 29. Qd3 Qxd3 30. Rxd3 Re2+ 31. Kf1 Rxa2 32. Rxd5 Rxd5 33. Rxd5 Rb2 34. Rb5 Kg7 35. b4 Kf6 36. Ra5 Rxb4 37. Rxa7 Rb2 38. Ra5 Ke6 39. Kg1 f6 40. Kf1 Rd2 41. Kg1 Rd5 42. Ra3 Kf5 43. Kf2 g5 44. Ra4 Rd2+ 45. Kf1 Rb2 46. Rc4 Rb5 47. hxg5 fxg5 48. g4+ hxg4 49. Rxg4 Rb2 50. Ra4 Rc2 51. Rb4 Kg6 52. Re4 Kh5 53. Rg4 Rb2 54. Kg1 Rb3 55. Kg2 Rb2+ 56. Kg3 Rb1 57. Kg2 Kg6 58. f4 Kf5 59. Rxg5+ Kxf4 60. Rg8 Rb2+ 61. Kf1 Ke5 1/2-1/2

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "7"]
[White "Navara, David"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2679"]
[BlackElo "2471"]
[PlyCount "125"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. Nf3 b5 6. c5 g6 7. Ne5 Bg7 8. Bd3 0-0 9. f4 b4 10. Na4 Nfd7 11. 0-0 f6 12. Nf3 f5 13. Ng5 Nf6 14. Nb6 Ra7 15. Bd2 h6 16. Nf3 a5 17. Ne5 Kh7 18. a3 bxa3 19. Rxa3 Nfd7 20. Bxa5 Qe8 21. Qc2 Bxe5 22. fxe5 Ba6 23. Nxd7 Qxd7 24. Bb6 Bxd3 25. Qxd3 Rxa3 26. Qxa3 Qe6 27. h3 Nd7 28. Qa7 g5 29. b4 f4 30. exf4 gxf4 31. Qa6 Kh8 32. Qe2 Qg6 33. Kh1 Qe4 34. Qh5 Kh7 35. Qg4 Rg8 36. Qf3 Qxd4 37. e6 Nf6 38. Qxf4 Qxf4 39. Rxf4 Rg3 40. b5 cxb5 41. c6 Rc3 42. Rxf6 Rxc6 43. Rf7+ Kg6 44. Bd8 Rxe6 45. Rxe7 Rc6 46. Rd7 Rc1+ 47. Kh2 Rd1 48. Ba5 Kf5 49. Rb7 Rb1 50. Bd2 h5 51. Rh7 Ke4 52. Rxh5 d4 53. h4 b4 54. Rb5 b3 55. h5 Kd3 56. Bg5 Kc4 57. Rb7 Ra1 58. h6 Ra5 59. h7 Ra8 60. Bf6 d3 61. h8Q Rxh8+ 62. Bxh8 d2 63. Rd7 1-0

[Event "EU-ch Blitz"]
[Site "Zagreb"]
[Date "2023.12.16"]
[Round "3"]
[White "Vojak, Daniel"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "C76"]
[WhiteElo "2264"]
[BlackElo "2471"]
[PlyCount "74"]
[EventDate "2023.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. 0-0 g6 7. d4 Bg7 8. d5 Nce7 9. Bxd7+ Qxd7 10. c4 h6 11. Nc3 f5 12. b4 Nf6 13. Nd2 f4 14. c5 0-0 15. Nc4 Rad8 16. a4 g5 17. Ba3 g4 18. Qd3 f3 19. g3 h5 20. b5 Ne8 21. b6 cxb6 22. Nxb6 Qc7 23. a5 dxc5 24. Nca4 h4 25. Rac1 hxg3 26. fxg3 Qd6 27. Nxc5 Bh6 28. Ncd7 Qg6 29. Nxf8 Bxf8 30. Rc2 Qh7 31. Nc4 Rxd5 32. Qe3 Bh6 33. Qb6 Qxe4 34. Qe6+ Kh7 35. Qxe7+ Ng7 36. Qh4 Qxc2 37. Bc1 Qg2# 0-1

[Event "EU-ch Rapid"]
[Site "Zagreb"]
[Date "2023.12.15"]
[Round "8"]
[White "Costachi, Mihnea"]
[Black "Hulka, Valentyn"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2471"]
[BlackElo "2310"]
[PlyCount "45"]
[EventDate "2023.12.14"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qa4+ Bd7 7. Qxd4 exd5 8. Nxd5 Qa5+ 9. Nc3 Nc6 10. Qd1 Ne4 11. Bd2 Nxd2 12. Nxd2 Bb4 13. e3 Bxc3 14. bxc3 Qxc3 15. Be2 Rd8 16. Qc1 Qxc1+ 17. Rxc1 Ke7 18. Nb3 Rc8 19. 0-0 Nb4 20. Bf3 b6 21. a3 Nd3 22. Ra1 Ne5 23. Be4 1/2-1/2

[Event "EU-ch Rapid"]
[Site "Zagreb"]
[Date "2023.12.15"]
[Round "10"]
[White "Costachi, Mihnea"]
[Black "Vyval, Volodymyr"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2471"]
[BlackElo "2313"]
[PlyCount "132"]
[EventDate "2023.12.14"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 0-0 11. Bc4 Nd7 12. 0-0 b6 13. Rad1 Bb7 14. d5 Nc5 15. Qf4 exd5 16. Bxd5 Bxd5 17. exd5 Qd7 18. d6 Rad8 19. Rd2 Rfe8 20. h3 Re4 21. Qg5 h6 22. Qd5 Qe6 23. Qc6 Qd7 24. Qd5 Qb7 25. Rfd1 Qxd5 26. Rxd5 f6 27. Nd4 Rd7 28. Nc6 Re8 29. R5d4 Kf7 30. a4 Rc8 31. Ne7 Rcd8 32. Nc6 Re8 33. a5 Nb3 34. Rd5 Nxa5 35. Nxa5 bxa5 36. Rxa5 Red8 37. Ra6 Ke6 38. Re1+ Kf7 39. Rd1 Ke6 40. f4 Rb8 41. Re1+ Kf7 42. Rea1 Rb6 43. Rxa7 Rbxd6 44. Kh2 Rxa7 45. Rxa7+ Kg6 46. f5+ Kh7 47. Kg3 Rd4 48. Kf3 h5 49. Re7 Ra4 50. Re4 Ra5 51. Kf4 Kh6 52. h4 Ra2 53. Kf3 Ra3+ 54. Re3 Ra5 55. Kf4 Ra4+ 56. Re4 Ra1 57. Re3 Rf1+ 58. Rf3 Ra1 59. Re3 Rf1+ 60. Rf3 Ra1 61. Re3 Ra4+ 62. Re4 Ra2 63. Kf3 Ra1 64. Re2 Kh7 65. g3 Rf1+ 66. Ke4 g6 1/2-1/2

[Event "EU-ch Rapid"]
[Site "Zagreb"]
[Date "2023.12.15"]
[Round "11"]
[White "Goroshkov, Maksym"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "C21"]
[WhiteElo "2329"]
[BlackElo "2471"]
[PlyCount "96"]
[EventDate "2023.12.14"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 d5 4. exd5 Nf6 5. c4 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 0-0 8. Qxd4 Re8+ 9. Be2 c6 10. Nc3 cxd5 11. cxd5 Nc6 12. Qd2 Nb4 13. Rd1 Bf5 14. Nf3 Bc2 15. Ra1 Bd3 16. 0-0 Bxe2 17. Nxe2 Nbxd5 18. Ng3 Qd6 19. Qg5 Qf4 20. Rad1 Qxg5 21. Nxg5 Nf4 22. Nf3 Rad8 23. Rxd8 Rxd8 24. Rc1 g6 25. h3 Ne4 26. Nxe4 Ne2+ 27. Kf1 Nxc1 28. g4 Rd1+ 29. Kg2 Nxa2 30. Nf6+ Kg7 31. Ne8+ Kf8 32. Nf6 h6 33. h4 Rb1 34. h5 Rxb2 35. Ne5 gxh5 36. gxh5 Nc3 37. Neg4 Nd1 38. Kg3 Rb3+ 39. f3 a5 40. Nxh6 Ne3 41. Kf4 a4 42. Nhg8 Nd5+ 43. Kg5 Nxf6 44. Nxf6 Rb5+ 45. Kg4 a3 46. h6 a2 47. h7 Kg7 48. h8Q+ Kxh8 0-1

[Event "EU-ch Rapid"]
[Site "Zagreb"]
[Date "2023.12.15"]
[Round "9"]
[White "Haszon, David"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2245"]
[BlackElo "2471"]
[PlyCount "141"]
[EventDate "2023.12.14"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. Qd2 Bg7 5. h4 c6 6. e3 b5 7. f3 a5 8. Bd3 Nh5 9. Bh2 e5 10. Qf2 exd4 11. exd4 0-0 12. Nge2 Re8 13. g4 Nf6 14. 0-0 Na6 15. a3 Ra7 16. Rae1 Rae7 17. Be5 Nd7 18. Bxg7 Kxg7 19. h5 Nf8 20. Qh2 Qc7 21. Qh4 Qd6 22. Kf2 b4 23. Na4 c5 24. Bb5 Bd7 25. Bxd7 Nxd7 26. g5 cxd4 27. Rh1 Nf8 28. Qxd4+ Qe5 29. h6+ Kg8 30. Qxe5 Rxe5 31. Nf4 Nc7 32. Nb6 Rxg5 33. Rxe8 Nxe8 34. axb4 axb4 35. Nbxd5 Ne6 36. Re1 N8c7 37. Nf6+ Kh8 38. Nxe6 fxe6 39. Re4 Nd5 40. Nxd5 Rxd5 41. Rxb4 Kg8 42. Rb8+ Kf7 43. Rb7+ Kg8 44. Rg7+ Kh8 45. Re7 Kg8 46. Re8+ Kf7 47. Rh8 Rd2+ 48. Ke3 Rxc2 49. Rxh7+ Kg8 50. Rg7+ Kh8 51. Rb7 Rc4 52. b4 g5 53. b5 g4 54. fxg4 Rxg4 55. Kd3 e5 56. b6 Rg6 57. h7 e4+ 58. Ke3 Rg3+ 59. Kf2 Rb3 60. Ke2 Rb2+ 61. Ke3 Rb3+ 62. Kxe4 Re3+ 63. Kd5 Re5+ 64. Kd6 Re6+ 65. Kd7 Rd6+ 66. Kc7 Rc6+ 67. Kd8 Rd6+ 68. Kc7 Rc6+ 69. Kb8 Rc8+ 70. Ka7 Ra8+ 71. Kxa8 1/2-1/2

[Event "EU-ch Rapid"]
[Site "Zagreb"]
[Date "2023.12.14"]
[Round "6"]
[White "Costachi, Mihnea"]
[Black "Dardha, Daniel"]
[Result "0-1"]
[ECO "E10"]
[WhiteElo "2471"]
[BlackElo "2598"]
[PlyCount "86"]
[EventDate "2023.12.14"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 h6 4. Nc3 Bb4 5. Qc2 c5 6. a3 Bxc3+ 7. Qxc3 cxd4 8. Nxd4 0-0 9. e3 d5 10. Be2 e5 11. Nf3 e4 12. Nd4 Bg4 13. 0-0 Bxe2 14. Nxe2 dxc4 15. Qxc4 Nc6 16. Qa4 Ne5 17. Ng3 Qd5 18. Ne2 b5 19. Qd4 Qe6 20. Nf4 Qf5 21. Qb4 Rfd8 22. Kh1 Nd3 23. Nxd3 Rxd3 24. Qe1 Rad8 25. Qe2 Ng4 26. f3 Ne5 27. b3 Rxb3 28. Bb2 Nc4 29. Bd4 exf3 30. Rxf3 Qe4 31. Rd1 Nxe3 32. Bxe3 Rxd1+ 33. Qxd1 Rxe3 34. Rf1 Rxa3 35. Qd8+ Kh7 36. Qd2 f6 37. Re1 Ra2 38. Rxe4 Rxd2 39. Kg1 a5 40. Kf1 a4 41. Rb4 a3 42. Rxb5 Rb2 43. Ra5 a2 0-1

[Event "EU-ch Rapid"]
[Site "Zagreb"]
[Date "2023.12.14"]
[Round "4"]
[White "Costachi, Mihnea"]
[Black "Saric, Ivan"]
[Result "1/2-1/2"]
[ECO "E75"]
[WhiteElo "2471"]
[BlackElo "2685"]
[PlyCount "61"]
[EventDate "2023.12.14"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CRO"]
[SourceTitle "CB51_2023"]
[SourceDate "2023.12.20"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 c5 7. d5 e6 8. Nf3 h6 9. Be3 exd5 10. cxd5 b5 11. e5 Ng4 12. Nxb5 Nxe3 13. fxe3 dxe5 14. e4 c4 15. Na3 f5 16. 0-0 fxe4 17. Nd2 Rxf1+ 18. Bxf1 Qb6+ 19. Kh1 Qxb2 20. Ndxc4 Qd4 21. Nb5 Qxd1 22. Rxd1 Na6 23. Ncd6 Bg4 24. Re1 Nc5 25. Nxe4 Nxe4 26. Rxe4 Bd7 27. Re1 a5 28. a4 Rc8 29. Bd3 g5 30. Nd6 Rd8 31. Nb7 1/2-1/2

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "4.1"]
[White "Costachi, Mihnea"]
[Black "Lupulescu, Constantin"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2471"]
[BlackElo "2582"]
[PlyCount "34"]
[EventDate "2023.12.02"]
[EventType "team-swiss (rapid)"]
[EventRounds "8"]
[EventCountry "ROU"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]
[WhiteTeam "Alba Iulia Unirea"]
[BlackTeam "Bucharest ASE"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bh4 0-0 8. e3 Bf5 9. Qb3 Bxc3+ 10. Qxc3 Nbd7 11. Ne5 g5 12. Bg3 Ne4 13. Qb3 c5 14. Qxb7 Qa5+ 15. b4 Qa3 16. Nxd7 Qc3+ 17. Ke2 Bg4+ 0-1

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "3.5"]
[White "Costachi, Mihnea"]
[Black "Nanu, Ciprian Costica"]
[Result "1/2-1/2"]
[ECO "E17"]
[WhiteElo "2471"]
[BlackElo "2520"]
[PlyCount "29"]
[EventDate "2023.12.02"]
[EventType "team-swiss (rapid)"]
[EventRounds "8"]
[EventCountry "ROU"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]
[WhiteTeam "Alba Iulia Unirea"]
[BlackTeam "Dinamo"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Re1 d5 8. cxd5 exd5 9. Nc3 Na6 10. Ne5 c5 11. dxc5 Nxc5 12. Bg5 h6 13. Bxf6 Bxf6 14. Ng4 Bxc3 15. bxc3 1/2-1/2

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "6.5"]
[White "Costachi, Mihnea"]
[Black "Negrean, Andrei"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2471"]
[BlackElo "1988"]
[PlyCount "52"]
[EventDate "2023.12.02"]
[EventType "team-swiss (rapid)"]
[EventRounds "8"]
[EventCountry "ROU"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]
[WhiteTeam "Alba Iulia Unirea"]
[BlackTeam "Central de Sah Club"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. Nc3 d5 2. d4 Nf6 3. Bf4 c5 4. e4 Nxe4 5. Nxe4 dxe4 6. dxc5 Qa5+ 7. c3 Qxc5 8. Qa4+ Nc6 9. Qxe4 g6 10. Nf3 Bg7 11. Qe3 Qxe3+ 12. Bxe3 0-0 13. Bb5 Bg4 14. Nd2 Rfd8 15. f3 Bf5 16. Ne4 Bxe4 17. fxe4 Ne5 18. 0-0 Ng4 19. Bc5 Rd2 20. Rab1 Bh6 21. h3 Be3+ 22. Bxe3 Nxe3 23. Rf2 Rad8 24. Ba4 Nc4 25. Bb3 Rxf2 26. Kxf2 Rd2+ 1/2-1/2

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "8.9"]
[White "Costachi, Mihnea"]
[Black "Padurean, Daniel Cristian"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2471"]
[BlackElo "2110"]
[PlyCount "45"]
[EventDate "2023.12.02"]
[EventType "team-swiss (rapid)"]
[EventRounds "8"]
[EventCountry "ROU"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]
[WhiteTeam "Alba Iulia Unirea"]
[BlackTeam "Resita Muncitoresc"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 Nc6 2. Nf3 d5 3. Bf4 Bg4 4. e3 f6 5. Bb5 e6 6. h3 Bh5 7. Nbd2 Bd6 8. Bxd6 Qxd6 9. c4 dxc4 10. 0-0 Nge7 11. Bxc4 e5 12. Qb3 0-0-0 13. Rac1 exd4 14. Ne4 Qb4 15. Qxb4 Nxb4 16. Nxd4 Bg6 17. Nc5 Nec6 18. Nde6 Rd2 19. a3 Nd3 20. Bxd3 Bxd3 21. Rfd1 Rxd1+ 22. Rxd1 Bc2 23. Rd7 1-0

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "1.9"]
[White "Costachi, Mihnea"]
[Black "Stefan, Romulus Cristian"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2471"]
[BlackElo "2139"]
[PlyCount "75"]
[EventDate "2023.12.02"]
[EventType "team-swiss (rapid)"]
[EventRounds "8"]
[EventCountry "ROU"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]
[WhiteTeam "Alba Iulia Unirea"]
[BlackTeam "Cugir Metalurgistul"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Bf4 dxc4 6. e4 b5 7. Be2 Bg7 8. 0-0 0-0 9. Qc2 Bb7 10. Rfd1 a6 11. b3 cxb3 12. axb3 Nbd7 13. h3 Qb6 14. Be3 Qc7 15. e5 Ne8 16. e6 fxe6 17. Ng5 Qd6 18. Bg4 Rf5 19. Nce4 Qd5 20. Nc5 Bc8 21. Ncxe6 Ndf6 22. Bxf5 gxf5 23. Nxg7 Nxg7 24. Bf4 Bb7 25. Nf3 Ne4 26. Be5 Rd8 27. b4 Ne6 28. Qc1 Nd6 29. Bxd6 Rxd6 30. Re1 Nxd4 31. Nxd4 Rg6 32. f3 Qxd4+ 33. Qe3 Qb2 34. Qe2 Qd4+ 35. Kh1 e6 36. Rad1 Qb6 37. Qe5 Bc8 38. Qd6 1-0

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "2.9"]
[White "Dicu, Nicolae"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "E71"]
[WhiteElo "1310"]
[BlackElo "2471"]
[PlyCount "46"]
[EventDate "2023.12.02"]
[EventType "team-swiss (rapid)"]
[EventRounds "8"]
[EventCountry "ROU"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]
[WhiteTeam "Cugir Metalurgistul III"]
[BlackTeam "Alba Iulia Unirea"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. h3 Bg7 5. e4 0-0 6. Bf4 c5 7. d5 Re8 8. Be2 e6 9. Nf3 exd5 10. exd5 Ne4 11. Nxe4 Rxe4 12. Qc2 Rxf4 13. 0-0 Bf5 14. Qb3 Qb6 15. Qe3 Re4 16. Qd2 Qxb2 17. Qxb2 Bxb2 18. Bd3 Bxa1 19. Bxe4 Bxe4 20. Rxa1 Bxf3 21. gxf3 Nd7 22. Re1 Ne5 23. Rc1 Nxf3+ 0-1

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "5.5"]
[White "Miron, Lucian Costin"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2479"]
[BlackElo "2471"]
[PlyCount "67"]
[EventDate "2023.12.02"]
[EventType "team-swiss (rapid)"]
[EventRounds "8"]
[EventCountry "ROU"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]
[WhiteTeam "Timisoara"]
[BlackTeam "Alba Iulia Unirea"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. Bg2 g6 5. b3 Bg7 6. Bb2 0-0 7. 0-0 Bf5 8. d3 Qc8 9. Nbd2 Bh3 10. Rc1 Bxg2 11. Kxg2 Qd8 12. Rc2 Na6 13. a3 c5 14. cxd5 Qxd5 15. Qa1 Rfd8 16. Rfc1 b6 17. Rc4 Nc7 18. b4 Ne6 19. Kg1 a5 20. bxc5 Nxc5 21. a4 Ne8 22. Bxg7 Nxg7 23. Qe5 Qxe5 24. Nxe5 Nf5 25. Rb1 Nd6 26. Rd4 Nf5 27. Rxd8+ Rxd8 28. Rxb6 Nxa4 29. Ra6 Nc3 30. e4 Nd4 31. Rxa5 f6 32. Nec4 Nde2+ 33. Kg2 Nc1 34. Ra3 1/2-1/2

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "7.9"]
[White "Nedelcu, Teodor Cosmin"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "2304"]
[BlackElo "2471"]
[PlyCount "79"]
[EventDate "2023.12.02"]
[EventType "team-swiss (rapid)"]
[EventRounds "8"]
[EventCountry "ROU"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]
[WhiteTeam "Buzau Gloria"]
[BlackTeam "Alba Iulia Unirea"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nc6 5. Nf3 Nf6 6. Bf4 e6 7. e3 a6 8. Bd3 Be7 9. h3 0-0 10. 0-0 b5 11. Rc1 Bb7 12. a4 b4 13. Nb1 Qb6 14. Nbd2 Rac8 15. Qe2 b3 16. Rc3 Bb4 17. Rcc1 Be7 18. Bg5 h6 19. Bh4 Rfe8 20. Bb1 g6 21. Qd3 Na5 22. Ne5 Rxc1 23. Rxc1 Ne4 24. Bxe7 Rxe7 25. Nxe4 dxe4 26. Qc3 Kg7 27. d5 f6 28. d6 Qxd6 29. Ng4 e5 30. Qxa5 f5 31. Nh2 f4 32. Qc3 Qd5 33. exf4 e3 34. Nf3 exf2+ 35. Kxf2 Kh7 36. fxe5 Rf7 37. Qd3 Qe6 38. Qd6 Bxf3 39. Qxe6 Bd5+ 40. Qxf7+ 1-0

[Event "Titled Tuesday intern op 14th Nov Early"]
[Site "Chess.com INT"]
[Date "2023.11.14"]
[Round "3"]
[White "Chernomordik, Pavel"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "C15"]
[WhiteElo "2131"]
[BlackElo "2471"]
[PlyCount "174"]
[EventDate "2023.11.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB47_2023"]
[SourceDate "2023.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.22"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. d4 Bb4 4. Nge2 c5 5. a3 Bxc3+ 6. Nxc3 dxe4 7. dxc5 Qxd1+ 8. Kxd1 Nf6 9. Nb5 Na6 10. Nd6+ Ke7 11. b4 Rd8 12. Bxa6 bxa6 13. Ke2 Bd7 14. c4 Ba4 15. Bb2 Bc2 16. Rac1 Bd3+ 17. Kd2 Ne8 18. Be5 f6 19. Bg3 e5 20. Ke3 Nxd6 21. cxd6+ Rxd6 22. Rhd1 Rad8 23. c5 Rd4 24. f3 Ke6 25. Be1 f5 26. g3 exf3 27. c6 Be4 28. Rxd4 exd4+ 29. Kd2 Rc8 30. c7 Kd7 31. Bf2 Rxc7 32. Rxc7+ Kxc7 33. Bxd4 g6 34. Bxa7 Kc6 35. Bf2 Kd5 36. Kc3 Bb1 37. a4 Be4 38. b5 axb5 39. axb5 Ke5 40. b6 Bb7 41. Kd3 g5 42. Bd4+ Ke6 43. Be3 Kf6 44. Kd2 Kg6 45. Ke1 Kh5 46. Kf2 Kg4 47. h3+ Kh5 48. Bd2 h6 49. Be3 Kg6 50. Bd2 Kf6 51. Bc3+ Kf7 52. Bd4 Kg6 53. Be5 Kf7 54. Bd4 Ke6 55. Bg7 h5 56. Bh6 Kf6 57. Bf8 Ke5 58. Be7 g4 59. h4 f4 60. Bd8 fxg3+ 61. Kxg3 Ke4 62. Be7 Ke3 63. Bc5+ Ke2 64. Bf2 Kf1 65. Bc5 Bc6 66. Bd4 Ke2 67. Bc5 Kd3 68. Bf2 Bb7 69. Bg1 Kc4 70. Be3 Kb5 71. Bf2 Kc6 72. Be3 Kd5 73. Bf2 Ke4 74. Bc5 Kd3 75. Bf2 Ke2 76. Bc5 Bc6 77. Bd4 Bd5 78. Bc5 Kd3 79. Bf2 Ke4 80. Bc5 Bb7 81. Bf2 Kd5 82. Be3 Kc4 83. Bf2 Kd3 84. Bc5 Kc3 85. Bf2 Kb4 86. Be3 Kc4 87. Bf2 Kd3 1/2-1/2

[Event "Titled Tuesday intern op 14th Nov Early"]
[Site "Chess.com INT"]
[Date "2023.11.14"]
[Round "2"]
[White "Costachi, Mihnea"]
[Black "Nastase, Robert Paul"]
[Result "1-0"]
[ECO "A02"]
[WhiteElo "2471"]
[BlackElo "2226"]
[PlyCount "83"]
[EventDate "2023.11.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB47_2023"]
[SourceDate "2023.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.22"]
[SourceQuality "1"]

1. f4 f5 2. e4 fxe4 3. d3 Nf6 4. Nc3 d5 5. dxe4 dxe4 6. Qxd8+ Kxd8 7. Be3 c6 8. 0-0-0+ Kc7 9. h3 h5 10. g3 Bf5 11. Bg2 e6 12. Nge2 Nbd7 13. Nd4 g6 14. Nb3 Bg7 15. Bd4 Rhg8 16. Rhe1 Rae8 17. Nc5 Nxc5 18. Bxc5 b6 19. Bd6+ Kc8 20. Nxe4 Nxe4 21. Bxe4 Bxe4 22. Rxe4 Bf6 23. Be5 Bxe5 24. Rxe5 Rg7 25. Rde1 Kd7 26. Kd2 Kd6 27. Kd3 Rf7 28. Ke4 Rf5 29. Rd1+ Ke7 30. g4 hxg4 31. hxg4 Rxe5+ 32. Kxe5 Rh8 33. Rd6 Rh1 34. Rxe6+ Kf7 35. Rf6+ Kg7 36. Rxc6 Re1+ 37. Kd4 Rf1 38. Ke3 Rg1 39. g5 Rg3+ 40. Ke4 Rg2 41. Rc7+ Kf8 42. Ke5 1-0

[Event "Titled Tuesday intern op 14th Nov Early"]
[Site "Chess.com INT"]
[Date "2023.11.14"]
[Round "4"]
[White "Costachi, Mihnea"]
[Black "Tifferet, Shaked"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2471"]
[BlackElo "2334"]
[PlyCount "145"]
[EventDate "2023.11.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB47_2023"]
[SourceDate "2023.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b4 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 b6 6. 0-0 Bb7 7. e3 c5 8. bxc5 bxc5 9. d4 cxd4 10. exd4 d6 11. c4 Nc6 12. Nc3 Na5 13. c5 dxc5 14. dxc5 Qxd1 15. Raxd1 Rac8 16. Na4 Bc6 17. Nc3 Nd7 18. Rfe1 e6 19. Nd4 Bxg2 20. Kxg2 Nxc5 21. Ndb5 Nc4 22. Ba1 a6 23. Nd6 Nxd6 24. Rxd6 Rfd8 25. Red1 Nb7 26. Rxd8+ Rxd8 27. Rb1 Nc5 28. Rb6 Rc8 29. Rb1 Nd3 30. Rb3 Nc1 31. Ra3 Rc6 32. Kf3 f5 33. Ke3 Nxa2 34. Nxa2 Bxa1 35. Nb4 Rc3+ 36. Rxc3 Bxc3 37. Nxa6 Kf7 38. f4 Ba5 39. Kf3 Ke7 40. Nc5 Bb4 41. Nd3 Bd6 42. h3 Kd7 43. g4 Kc6 44. Ke3 Kd5 45. gxf5 gxf5 46. Nc1 Bc5+ 47. Kf3 Kc4 48. Ne2 Kd3 49. Ng3 Bd4 50. Nh5 Kd2 51. Ng3 Ke1 52. Ne2 Bf6 53. Ng3 Kd2 54. Nh5 Bd4 55. Ng3 Kd3 56. Ne2 e5 57. fxe5 Bxe5 58. Nf4+ Kd4 59. Ne6+ Kd5 60. Nf8 h6 61. Ng6 Bd6 62. Nh4 Ke6 63. Ng2 Kf6 64. Ne3 Kg5 65. Ng2 Bc5 66. Ke2 f4 67. Kf3 Bd6 68. Ke4 Bc7 69. Kf3 Bb8 70. Ke4 Bc7 71. Kf3 Kf5 72. Nh4+ Kg5 73. Ng2 1/2-1/2

[Event "Titled Tuesday intern op 14th Nov Early"]
[Site "Chess.com INT"]
[Date "2023.11.14"]
[Round "1"]
[White "Gutierrez Olivares, Daniel"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2354"]
[BlackElo "2471"]
[PlyCount "39"]
[EventDate "2023.11.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB47_2023"]
[SourceDate "2023.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.22"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. a3 Bf5 4. Bf4 e6 5. e3 Bd6 6. Bg3 Nf6 7. c4 dxc4 8. Bxc4 0-0 9. Nc3 Ne4 10. Nd2 Nxg3 11. hxg3 Bg6 12. Nf3 e5 13. Nh4 Qg5 14. Nxg6 Qxg6 15. Bd3 f5 16. g4 exd4 17. gxf5 Qxg2 18. Qh5 h6 19. Be4 Qg5 20. Bd5+ 1-0

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "7"]
[White "Cnejev, Vladimir Alexandru"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "C89"]
[WhiteElo "2313"]
[BlackElo "2476"]
[PlyCount "87"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 Na5 9. Bc2 d5 10. exd5 e4 11. Bxe4 Nxe4 12. Rxe4 Bb7 13. d3 Bxd5 14. Re1 Re8 15. Nbd2 Bf8 16. Rxe8 Qxe8 17. Nf1 Rd8 18. Bf4 Qd7 19. Ne3 Bb7 20. Qe2 c5 21. Rd1 Nc6 22. d4 cxd4 23. Nxd4 Qe8 24. Nxc6 Bxc6 25. Rxd8 Qxd8 26. Be5 Qg5 27. Bd4 Qg6 28. Qc2 Be4 29. Qd1 f5 30. f3 Bb7 31. Be5 Qb6 32. Kf2 Qe6 33. Qb3 Qxb3 34. axb3 g6 35. Ke2 Kf7 36. b4 Ke6 37. Bd4 g5 38. Kd2 h5 39. Ke2 f4 40. Nf1 g4 41. Nd2 Kf5 42. Kd3 h4 43. Bc5 Bg7 44. Bd4 1/2-1/2

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "6"]
[White "Costachi, Mihnea"]
[Black "Grad, Gheorghe"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "2476"]
[BlackElo "1729"]
[PlyCount "71"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Bc4 Be7 4. f4 d6 5. Nf3 Bg4 6. fxe5 Bxf3 7. Qxf3 dxe5 8. d3 Nbd7 9. Be3 Nf8 10. 0-0-0 Ng6 11. d4 Qc8 12. h3 0-0 13. d5 Nd7 14. h4 Bd6 15. h5 Ne7 16. g4 a6 17. g5 f5 18. gxf6 Nxf6 19. Rdg1 Kh8 20. Qg3 Rf7 21. Bf1 Neg8 22. Bh3 Qf8 23. Be6 Re7 24. h6 g6 25. Rf1 b5 26. Bg5 b4 27. Bxg8 Kxg8 28. Rxf6 Qe8 29. Nd1 a5 30. Ne3 a4 31. Nf5 gxf5 32. Rxd6 cxd6 33. Bxe7+ Qg6 34. Qxg6+ hxg6 35. h7+ Kf7 36. Bxd6 1-0

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "10"]
[White "Costachi, Mihnea"]
[Black "Manolache, Marius"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2476"]
[BlackElo "2399"]
[PlyCount "82"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 Nc6 3. Nf3 e6 4. a3 d6 5. Nc3 a5 6. g3 g6 7. Bg2 Bg7 8. 0-0 0-0 9. b3 h6 10. Bb2 d5 11. Qd3 Qe7 12. e4 dxe4 13. Nxe4 Rd8 14. Qe2 Nxe4 15. Qxe4 Bd7 16. Rad1 Be8 17. Rfe1 Ra6 18. h4 Qf8 19. Qc2 Ne7 20. Ne5 c6 21. Bc3 Nf5 22. b4 Raa8 23. h5 g5 24. Be4 Nd6 25. Bd3 b5 26. bxa5 bxc4 27. Bh7+ Kh8 28. Bb4 Bf6 29. Nxc4 Be7 30. Nb6 Ra7 31. Bd3 Nb5 32. Bxb5 cxb5 33. d5 Bxb4 34. Qb2+ Bc3 35. Qxc3+ Qg7 36. Qb4 e5 37. d6 Bc6 38. Qc5 Bf3 39. Rd2 f6 40. d7 Qf7 41. Qc8 Qf8 1-0

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "8"]
[White "Costachi, Mihnea"]
[Black "Rakhmangulova, Anastasiya"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2476"]
[BlackElo "2354"]
[PlyCount "69"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g4 h6 8. Rg1 Qe7 9. h4 g6 10. Bd2 b6 11. 0-0-0 Bb7 12. Kb1 0-0-0 13. cxd5 exd5 14. g5 hxg5 15. hxg5 Ne4 16. Nxd5 Qe6 17. Bc4 Qf5 18. Nf4 Bxf4 19. exf4 Nxd2+ 20. Nxd2 Qxf4 21. Bd5 Kb8 22. Bxc6 Bxc6 23. Qxc6 Nf8 24. Nb3 Rh2 25. Rg2 Rc8 26. Qd5 Rxg2 27. Qxg2 Qf5+ 28. Ka1 Qc2 29. Qg3+ Kb7 30. Qf3+ Kb8 31. Qf4+ Ka8 32. Rc1 Qf5 33. Rxc8+ Qxc8 34. Qxf7 Ne6 35. Qxg6 1-0

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "5"]
[White "Sachilaru, Alexandru"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "C85"]
[WhiteElo "2152"]
[BlackElo "2476"]
[PlyCount "59"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Bxc6 dxc6 6. d3 Nd7 7. Nbd2 Be7 8. Nc4 f6 9. 0-0 0-0 10. Ne3 Nc5 11. b3 Ne6 12. Bb2 c5 13. Qd2 Nd4 14. Nh4 g6 15. c3 Ne6 16. Nf3 b5 17. Qc2 Bb7 18. Rfd1 Qe8 19. d4 cxd4 20. cxd4 exd4 21. Nxd4 Nxd4 22. Bxd4 Bd6 23. f3 Rf7 24. Ng4 Qf8 25. Qb2 Ba3 26. Qd2 g5 27. Qc3 Bb4 28. Qb2 Ba3 29. Qc3 Bb4 30. Qb2 1/2-1/2

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "9"]
[White "Zatonskih, Anna"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2363"]
[BlackElo "2476"]
[PlyCount "92"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 0-0 6. c4 a5 7. b5 c5 8. bxc6 Nxc6 9. Ba3 Rb8 10. Rc1 Bf5 11. cxd5 Qxd5 12. Bc4 Qd7 13. Qe2 Ne4 14. Nxe4 Bxe4 15. 0-0 Nb4 16. Rfd1 b5 17. Bb3 Qb7 18. Ne1 Na6 19. f3 a4 20. Bxa4 bxa4 21. fxe4 Qxe4 22. Qd3 Qxd3 23. Nxd3 Rfc8 24. Kf2 e6 25. Rxc8+ Rxc8 26. Rc1 Rxc1 27. Nxc1 Bf8 28. Bxf8 Kxf8 29. Ke2 Ke7 30. Kd3 Kd6 31. Kc4 f5 32. Nd3 Nc7 33. Nb4 g5 34. Nc2 Nd5 35. Kd3 h5 36. g3 Nf6 37. Na3 Ng4 38. Nb5+ Kc6 39. Nc3 Nxh2 40. e4 Nf1 41. d5+ exd5 42. exf5 Nxg3 43. f6 Kd6 44. Nxa4 h4 45. Nc3 h3 46. Nxd5 Ke5 0-1

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.04"]
[Round "4"]
[White "Costachi, Mihnea"]
[Black "Negrean, Andrei"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "2476"]
[BlackElo "2003"]
[PlyCount "147"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 cxd4 6. exd4 Bb4 7. a3 Bxc3+ 8. bxc3 0-0 9. Qc2 b6 10. Bd3 dxc4 11. Bxc4 Bb7 12. Qe2 Nbd7 13. 0-0 Qc7 14. Nd2 Rac8 15. Bb2 Nd5 16. Bxd5 Bxd5 17. Rfc1 Bc4 18. Qf3 Nf6 19. a4 Qc6 20. Qg3 Ne4 21. Nxe4 Qxe4 22. a5 Qg6 23. Qe3 h6 24. Ba3 Rfd8 25. Bb4 Qf5 26. Rcb1 Rb8 27. Re1 Re8 28. Qg3 Kh7 29. Bd6 Rbc8 30. Bc7 bxa5 31. Rxa5 Qg6 32. Rxa7 Qxg3 33. Bxg3 Kg8 34. Bd6 Ra8 35. Rea1 Bd5 36. f3 Rxa7 37. Rxa7 Ra8 38. Rc7 Ra4 39. Bb4 Ra6 40. Kf2 Rc6 41. Ra7 Rc8 42. Ke3 g5 43. Kd3 Bc4+ 44. Ke3 Bd5 45. g3 Kg7 46. h4 gxh4 47. gxh4 Kg6 48. Kf4 Rb8 49. Rc7 Ra8 50. c4 Ra4 51. cxd5 Rxb4 52. Ke4 f5+ 53. Ke5 exd5 54. Kxd5 Rb3 55. f4 Rf3 56. Ke5 Re3+ 57. Kd6 Re4 58. d5 Rxf4 59. Kc5 Rf1 60. d6 Rd1 61. d7 Kh5 62. Kc6 Kxh4 63. Rc8 f4 64. d8Q+ Rxd8 65. Rxd8 f3 66. Kd5 f2 67. Rf8 Kg3 68. Ke4 Kg2 69. Rg8+ Kh2 70. Rf8 Kg2 71. Rg8+ Kh2 72. Rf8 Kg2 73. Rg8+ Kh2 74. Rf8 1/2-1/2

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.04"]
[Round "2"]
[White "Costachi, Mihnea"]
[Black "Zaim, Marian"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2476"]
[BlackElo "1938"]
[PlyCount "61"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. Nc3 g6 2. d4 d5 3. Bf4 Bg7 4. e3 Nf6 5. h4 h5 6. Nf3 a6 7. Be2 Bg4 8. Ne5 Bxe2 9. Qxe2 Nbd7 10. 0-0-0 Nf8 11. Bg3 c6 12. f3 Bh6 13. Kb1 Ne6 14. e4 Bf4 15. Bxf4 Nxf4 16. Qe3 Ne6 17. exd5 Nxd5 18. Nxd5 Qxd5 19. c4 Qd6 20. d5 cxd5 21. Rxd5 Qc7 22. Rhd1 Rd8 23. Rxd8+ Nxd8 24. Rd7 Qa5 25. Rxe7+ Kf8 26. Nxg6+ fxg6 27. Re8+ Kg7 28. Qd4+ Kf7 29. Qd7+ Kf6 30. Qe7+ Kf5 31. Qg5# 1-0

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.04"]
[Round "3"]
[White "Craciun, Sasha Matei"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "C71"]
[WhiteElo "2050"]
[BlackElo "2476"]
[PlyCount "52"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c4 Nf6 6. Nc3 Bg4 7. h3 Bxf3 8. Bxc6+ bxc6 9. Qxf3 Be7 10. 0-0 0-0 11. d3 Nd7 12. Be3 g6 13. Rad1 Bf6 14. Ne2 c5 15. Bh6 Bg7 16. Bxg7 Kxg7 17. Qg3 Rb8 18. b3 Nf6 19. f4 Nh5 20. Qf2 exf4 21. Nxf4 Nxf4 22. Qxf4 Qe7 23. Rde1 Qe5 24. Qxe5+ dxe5 25. Kf2 a5 26. Ke3 f6 1/2-1/2

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.04"]
[Round "1"]
[White "Grasu, Denis Gabriel"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "C30"]
[WhiteElo "1366"]
[BlackElo "2476"]
[PlyCount "42"]
[EventDate "2023.11.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. h3 Nc6 5. Bc4 Nf6 6. d3 0-0 7. fxe5 dxe5 8. Bg5 Na5 9. Bb3 Nxb3 10. axb3 Qd6 11. Nc3 Nh5 12. Bh4 Nf4 13. Kf1 Qg6 14. g4 f5 15. exf5 Bxf5 16. Bf2 Bxg4 17. hxg4 Qxg4 18. Rh2 Nh3 19. Bxc5 Rxf3+ 20. Bf2 Rxf2+ 21. Rxf2 Qg1+ 0-1

[Event "ROM-chT"]
[Site "Eforie Nord"]
[Date "2023.09.29"]
[Round "9.6"]
[White "Antal, Hunor Zoltan"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2168"]
[BlackElo "2476"]
[PlyCount "111"]
[EventDate "2023.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Timisoara Medicina"]
[BlackTeam "Bucharest ASE"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 0-0 5. e4 d6 6. h3 c6 7. Bd3 e5 8. d5 a5 9. 0-0 Na6 10. a3 Bd7 11. Be3 Ne8 12. Na4 c5 13. Qb3 f5 14. Nb6 Rb8 15. Nxd7 Qxd7 16. Qb6 a4 17. Bc2 Nac7 18. Ng5 f4 19. Bd2 h6 20. Nf3 g5 21. b4 axb3 22. Qxb3 Nf6 23. a4 Kh8 24. Qd3 Rg8 25. Rfb1 h5 26. Kf1 Nh7 27. Ra3 Bf6 28. Rab3 Na6 29. Rb6 g4 30. hxg4 hxg4 31. Ne1 f3 32. gxf3 g3 33. fxg3 Qh3+ 34. Ke2 Qxg3 35. Rxd6 Bg5 36. Rd7 Nb4 37. Qc3 Nf6 38. Rf7 Rbe8 39. Bxg5 Qxg5 40. Qe3 Qh4 41. Kd1 b6 42. Kc1 Rg6 43. Kb2 Reg8 44. Rd1 Ne8 45. Qc3 Rg5 46. d6 Nc6 47. d7 Ng7 48. f4 Rg3 49. Rd3 Rxd3 50. Nxd3 Nd8 51. Nxe5 Kh7 52. Nf3 Qh5 53. Ng5+ Kh8 54. Qf6 Nxf7 55. Nxf7+ Kh7 56. e5+ 1-0

[Event "ROM-chT"]
[Site "Eforie Nord"]
[Date "2023.09.27"]
[Round "7.6"]
[White "Antonica, Dragos Andrei"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2352"]
[BlackElo "2476"]
[PlyCount "18"]
[EventDate "2023.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Galati Smart"]
[BlackTeam "Bucharest ASE"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 d6 5. e4 c5 6. Nge2 Nc6 7. d3 a6 8. 0-0 0-0 9. h3 Rb8 1/2-1/2

[Event "ROM-chT"]
[Site "Eforie Nord"]
[Date "2023.09.26"]
[Round "6.6"]
[White "Costachi, Mihnea"]
[Black "Filip, Andrei"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2476"]
[BlackElo "2314"]
[PlyCount "105"]
[EventDate "2023.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Bucharest ASE"]
[BlackTeam "Timisoara Vest Univ"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Re1 c5 7. e4 cxd4 8. Nxd4 Bg4 9. f3 Bd7 10. Be3 Nc6 11. Nc3 Rc8 12. Nxc6 bxc6 13. Qd2 Re8 14. Rad1 Qa5 15. b3 Be6 16. Ne2 Qc7 17. c4 Red8 18. Bd4 Bd7 19. h3 a5 20. Kh2 c5 21. Bc3 Ra8 22. Nf4 Bc6 23. a3 Ne8 24. h4 Bxc3 25. Qxc3 Ng7 26. Bh3 e5 27. Nd5 Bxd5 28. cxd5 Qb6 29. Rd2 Rdb8 30. Rb1 Ra7 31. Qc4 Ne8 32. f4 Re7 33. f5 Qb5 34. Qc3 Reb7 35. fxg6 hxg6 36. Qf3 a4 37. h5 axb3 38. hxg6 fxg6 39. Be6+ Kh7 40. Kg2 Ng7 41. Rh1+ Nh5 42. g4 Qa5 43. Rb2 Qxa3 44. Rf2 Rg7 45. gxh5 gxh5+ 46. Bg4 Kg8 47. Rxh5 b2 48. Qf5 Re8 49. Rh8+ Kxh8 50. Qh5+ Kg8 51. Qxe8+ Kh7 52. Qh5+ Kg8 53. Kh2 1-0

[Event "ROM-chT"]
[Site "Eforie Nord"]
[Date "2023.09.25"]
[Round "5.6"]
[White "Balla, Tamas Kristof"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "C24"]
[WhiteElo "2308"]
[BlackElo "2476"]
[PlyCount "64"]
[EventDate "2023.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Ineu"]
[BlackTeam "Bucharest ASE"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 Bd6 6. exd5 Nxd5 7. Bg5 f6 8. Bh4 0-0 9. Nc3 Kh8 10. Bxd5 cxd5 11. Nxd5 Qa5+ 12. Nc3 Bg4 13. h3 Bh5 14. 0-0 Nc6 15. g4 Bf7 16. a3 f5 17. Ng5 Bg8 18. gxf5 Rxf5 19. Nge4 Be7 20. Bxe7 Nxe7 21. Kh2 Raf8 22. Rg1 Qb6 23. b4 Qh6 24. Qc1 Qh5 25. Rg3 Be6 26. Qe3 Ng6 27. Qxa7 Qh6 28. Qe3 Nf4 29. Rag1 Rh5 30. Ng5 Rxg5 31. Rxg5 Bxh3 32. Qxe5 Bf5+ 0-1

[Event "ROM-chT"]
[Site "Eforie Nord"]
[Date "2023.09.24"]
[Round "4.6"]
[White "Costachi, Mihnea"]
[Black "Petrisor, Adrian Marian"]
[Result "1/2-1/2"]
[ECO "D78"]
[WhiteElo "2476"]
[BlackElo "2387"]
[PlyCount "39"]
[EventDate "2023.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Bucharest ASE"]
[BlackTeam "Arad Vados"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nf3 Bg7 6. 0-0 0-0 7. b3 Bf5 8. Nc3 Ne4 9. Bb2 Nd7 10. Rc1 Nxc3 11. Bxc3 Be4 12. Bh3 Bxf3 13. exf3 e6 14. Re1 Re8 15. Qd2 dxc4 16. bxc4 Nb6 17. Bf1 Qd7 18. f4 Rad8 19. Red1 Qe7 20. Qc2 1/2-1/2

[Event "ROM-chT"]
[Site "Eforie Nord"]
[Date "2023.09.23"]
[Round "3.6"]
[White "Barzanu, Iulian"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2182"]
[BlackElo "2476"]
[PlyCount "130"]
[EventDate "2023.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Craiova Oltenia"]
[BlackTeam "Bucharest ASE"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Nc3 Nc6 7. Rb1 a5 8. a3 e5 9. d3 Re8 10. Bg5 h6 11. Bxf6 Bxf6 12. e4 Bg7 13. b4 axb4 14. axb4 Be6 15. b5 Ne7 16. Qb3 c6 17. Ra1 Rxa1 18. Rxa1 d5 19. cxd5 cxd5 20. Qb4 Qc7 21. Nd2 dxe4 22. dxe4 Rd8 23. Nf1 Bf8 24. Qb2 Rd3 25. Rc1 Qd7 26. Ne3 Qd4 27. Bf1 Rd2 28. Rc2 Rxc2 29. Qxc2 Nc8 30. Ncd5 Bc5 31. Nc7 Bd7 32. Qc4 Nd6 33. Qxd4 Bxd4 34. Ned5 Kg7 35. Bd3 f5 36. exf5 gxf5 37. Kg2 e4 38. Be2 Ne8 39. Nxe8+ Bxe8 40. f3 Bf7 41. fxe4 fxe4 42. Bc4 Be6 43. Kf1 Bh3+ 44. Ke1 Bd7 45. Nc7 Kf6 46. Nd5+ Ke5 47. Nf4 Bc3+ 48. Kd1 Kd4 49. Bd5 Bg4+ 50. Kc2 e3 51. Bxb7 e2 52. Nxe2+ Bxe2 53. Bc6 Ba5 54. b6 Bxb6 55. Kd2 Bd3 56. g4 Ba5+ 57. Kd1 Ke3 58. Bd7 Bd8 59. Bc8 Bh4 60. Bd7 Bf1 61. Kc2 Bf6 62. Be6 Bh3 63. Bd5 Bxg4 64. Bc6 Bh3 65. Kd1 Be5 0-1

[Event "ROM-chT"]
[Site "Eforie Nord"]
[Date "2023.09.22"]
[Round "2.5"]
[White "Stepanencu, Nicodim Cosmin"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "C88"]
[WhiteElo "2322"]
[BlackElo "2476"]
[PlyCount "32"]
[EventDate "2023.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Baia Mare Municipiului"]
[BlackTeam "Bucharest ASE"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. h3 Bb7 9. d3 d6 10. a3 Re8 11. Nc3 h6 12. Bd2 Bf8 13. Nd5 Nxd5 14. Bxd5 Rb8 15. a4 Ne7 16. Bxb7 Rxb7 1/2-1/2

[Event "ROM-chT"]
[Site "Eforie Nord"]
[Date "2023.09.21"]
[Round "1.6"]
[White "Costachi, Mihnea"]
[Black "Popescu, Daniel Vasilica"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2476"]
[BlackElo "1987"]
[PlyCount "137"]
[EventDate "2023.09.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Bucharest ASE"]
[BlackTeam "Buzau Phoenix"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 e6 2. Nf3 b6 3. e4 Bb7 4. Bd3 c5 5. c3 Nf6 6. e5 Nd5 7. 0-0 cxd4 8. Nxd4 Nc6 9. Nxc6 dxc6 10. Qe2 Qc7 11. a3 Rd8 12. b4 b5 13. f4 g6 14. c4 bxc4 15. Bxc4 Qb6+ 16. Kh1 Be7 17. Bd2 a6 18. Nc3 Nxc3 19. Bxc3 0-0 20. Rab1 Rd7 21. Rbe1 c5 22. b5 axb5 23. Bxb5 Bc6 24. Bc4 Bd5 25. Rb1 Qa7 26. Bb5 Rb7 27. a4 Rfb8 28. Rbd1 Qb6 29. f5 Bb3 30. fxg6 hxg6 31. Rd3 Bf8 32. Qe1 c4 33. Rh3 Qd8 34. Bc6 Ra7 35. Qf2 Qe7 36. Rf3 Rc8 37. Bb5 Rd8 38. Bd4 Rb7 39. Bc6 Rc7 40. Bb6 Rd1 41. Bxc7 Qxc7 42. Be8 Qxe5 43. Rxb3 Rxf1+ 44. Qxf1 cxb3 45. Qxf7+ Kh8 46. Qxf8+ Kh7 47. Qf7+ Kh8 48. Qf1 Kg7 49. Bb5 b2 50. Bd3 Qc3 51. h3 Qc1 52. Qg1 e5 53. Bb1 Qc3 54. Qf1 Qc1 55. Qg1 Qc3 56. a5 Qxa5 57. Qe3 Qb5 58. Qe4 g5 59. Kh2 Kf8 60. Qf5+ Ke7 61. Qxg5+ Kd6 62. Qd2+ Ke7 63. Qc2 Qb4 64. Qe4 Qc3 65. h4 Ke6 66. h5 Qc1 67. Kg3 Kf7 68. Qf5+ Kg8 69. Ba2+ 1-0

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "1"]
[White "Astafurov, Arseniy"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "A15"]
[WhiteElo "2263"]
[BlackElo "2476"]
[PlyCount "210"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. d4 Ne4 9. Nfd2 d5 10. e3 Nxd2 11. Qxd2 Nd7 12. Nc3 Nf6 13. Rac1 Rb8 14. cxd5 Nxd5 15. Nxd5 exd5 16. Ba3 Re8 17. Rc2 h5 18. Rfc1 c6 19. h4 Bf8 20. Bxf8 Kxf8 21. Qb4+ Kg7 22. Bf3 Rc8 23. Qa4 a5 24. b4 b5 25. Qxa5 Qxa5 26. bxa5 Ra8 27. a4 Rxa5 28. axb5 Rxb5 29. Ra1 Ra8 30. Rca2 Rxa2 31. Rxa2 Kf6 32. Kg2 Ke7 33. Rc2 Kd6 34. Ra2 Rb1 35. Rc2 f6 36. Ra2 Rb5 37. Rc2 Rb6 38. Ra2 Ba6 39. Ra5 Kc7 40. e4 dxe4 41. Bxe4 f5 42. Bf3 Kd6 43. Re5 Rb4 44. Re8 Bc4 45. Rc8 Rb6 46. Rd8+ Ke7 47. Rc8 Kd7 48. Rh8 Rb1 49. Rh6 Bf1+ 50. Kh2 Rb4 51. Rxg6 Bb5 52. Bxh5 Rxd4 53. Bf3 Ke7 54. h5 Kf7 55. Bxc6 Be2 56. Rh6 Kg7 57. Rg6+ Kf7 58. Rg5 Kf6 59. f4 Rd2 60. Kg1 Bg4 61. h6 Rd1+ 62. Kf2 Rd2+ 63. Ke3 Rh2 64. Bf3 Bxf3 65. Kxf3 Rxh6 66. Rg8 Rh1 67. Ra8 Rb1 68. Ra6+ Kg7 69. Kg2 Rc1 70. Kh3 Rh1+ 71. Kg2 Rd1 72. Rb6 Rc1 73. Rb5 Kg6 74. Rb8 Kf6 75. Rf8+ Kg6 76. Rg8+ Kf6 77. Kh3 Ra1 78. Rf8+ Kg6 79. Rg8+ Kf7 80. Rb8 Kf6 81. Rb6+ Kf7 82. Kh4 Ra3 83. Rc6 Rb3 84. Ra6 Rc3 85. Ra5 Kg6 86. Ra6+ Kg7 87. Rb6 Ra3 88. Rb8 Rc3 89. Rb5 Kg6 90. Ra5 Rb3 91. Ra6+ Kg7 92. Kg5 Rxg3+ 93. Kxf5 Rb3 94. Ra7+ Kf8 95. Kg5 Rb5+ 96. f5 Rb6 97. Ra8+ Kf7 98. Ra7+ Kf8 99. Rh7 Ra6 100. Rb7 Rc6 101. f6 Rc1 102. Rb8+ Kf7 103. Rb7+ Kf8 104. Rb8+ Kf7 105. Rb7+ Kf8 1/2-1/2

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "5"]
[White "Costachi, Mihnea"]
[Black "Ezat, Mohamed Mahmoud"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2476"]
[BlackElo "2382"]
[PlyCount "101"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d6 5. 0-0 h6 6. d4 Qc7 7. Nc3 Be7 8. a4 0-0 9. h3 Nbd7 10. Be3 Rd8 11. Qe2 Nf8 12. Rfd1 Ng6 13. a5 Bf8 14. b4 exd4 15. Bxd4 Nh5 16. Qe3 Nhf4 17. Bxa7 Bxh3 18. gxh3 d5 19. Bb6 Qc8 20. exd5 Qxh3 21. Ne1 Qg4+ 22. Qg3 Nh3+ 23. Kg2 Nh4+ 24. Kh1 Qxc4 25. Bxd8 Qf1+ 26. Kh2 Nxf2 27. Ng2 Nxd1 28. Rxd1 Qxg2+ 29. Qxg2 Nxg2 30. dxc6 bxc6 31. Kxg2 Bxb4 32. Ne4 Bxa5 33. Bxa5 Rxa5 34. Kf3 f5 35. Rd8+ Kh7 36. Nd6 Rc5 37. c4 g5 38. Ke3 Kg6 39. Kd4 Ra5 40. Rc8 g4 41. Rxc6 Kg5 42. Nf7+ Kf4 43. Rxh6 g3 44. Rg6 Ra7 45. Ne5 Re7 46. Nd3+ Kf3 47. c5 g2 48. c6 f4 49. Nxf4 Kxf4 50. Rxg2 Re1 51. Rf2+ 1-0

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "2"]
[White "Costachi, Mihnea"]
[Black "Jaiveer, Mahendru"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2476"]
[BlackElo "2393"]
[PlyCount "67"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nb3 Be7 8. Be2 0-0 9. 0-0 Be6 10. Be3 Nbd7 11. a5 Rc8 12. f3 Qc7 13. Qd2 Rfd8 14. Rac1 Nc5 15. Nd5 Bxd5 16. exd5 e4 17. f4 Bf8 18. g4 Nfd7 19. Nd4 Re8 20. b4 Na4 21. c4 b5 22. cxb5 Qb7 23. Nc6 axb5 24. Rc2 Nb8 25. Rfc1 Nxc6 26. dxc6 Qa6 27. Qd5 Nc5 28. bxc5 Rxc6 29. cxd6 Rxd6 30. Qxb5 Qa8 31. a6 Red8 32. a7 Rd5 33. Qc6 Ba3 34. Qxa8 1-0

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "8"]
[White "Costachi, Mihnea"]
[Black "Khandelwal, Ankush"]
[Result "0-1"]
[ECO "B85"]
[WhiteElo "2476"]
[BlackElo "2277"]
[PlyCount "74"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. Be3 0-0 9. a4 Nc6 10. Qd2 Qc7 11. f4 Re8 12. Bf3 Nxd4 13. Qxd4 e5 14. Qd3 exf4 15. Bxf4 Be6 16. Rfd1 Rac8 17. Kh1 Qb6 18. a5 Qxb2 19. Na4 Qxc2 20. Qxc2 Rxc2 21. Bxd6 Bxd6 22. Rxd6 g6 23. Rb1 Ba2 24. Ra1 Nxe4 25. Rd7 Nd2 26. Bxb7 Nb3 27. Rg1 Nxa5 28. Bxa6 Nc6 29. h3 Ne5 30. Rd4 Ra8 31. Bb5 Rb8 32. Ba6 Be6 33. Ra1 Bd7 34. Rd5 f6 35. Nc5 Bc6 36. Rd6 Bxg2+ 37. Kg1 Nf3# 0-1

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "9"]
[White "Costachi, Mihnea"]
[Black "Postny, Evgeny"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2476"]
[BlackElo "2570"]
[PlyCount "40"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nc3 d5 2. d4 Nf6 3. Bf4 a6 4. e3 e6 5. g4 Bd6 6. Qf3 Nc6 7. g5 Nd7 8. h4 e5 9. dxe5 Ndxe5 10. Qxd5 Be6 11. Qe4 Qe7 12. 0-0-0 0-0-0 13. Bg2 Nc4 14. Nge2 Ba3 15. Nd5 Bxb2+ 16. Kb1 Rxd5 17. Qxc4 Rxd1+ 18. Rxd1 Bxc4 19. Kxb2 Qb4+ 20. Ka1 Bxe2 0-1

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "11"]
[White "Costachi, Mihnea"]
[Black "Smirnov, Mark1111"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2476"]
[BlackElo "2005"]
[PlyCount "48"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. b3 e5 4. Bb2 d6 5. Be2 g6 6. 0-0 Bg7 7. c3 Nge7 8. d4 exd4 9. cxd4 Bg4 10. e5 cxd4 11. Nxd4 Bxe2 12. Qxe2 dxe5 13. Nxc6 Nxc6 14. Nc3 0-0 15. Rfd1 Qg5 16. Rd7 Rad8 17. Ne4 Qf5 18. Rxb7 Nd4 19. Qd3 Nxb3 20. Qxb3 Qxe4 21. Rxa7 Rb8 22. Qa3 Qc2 23. Bxe5 Rb1+ 24. Qc1 Qxc1# 0-1

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "3"]
[White "Costachi, Mihnea"]
[Black "Valenzuela Gomez, Fernando Alberto"]
[Result "1-0"]
[ECO "C28"]
[WhiteElo "2476"]
[BlackElo "2404"]
[PlyCount "33"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nc3 Bb4 5. Nge2 Na5 6. Bg5 Nxc4 7. dxc4 h6 8. Bxf6 Qxf6 9. 0-0 Bxc3 10. Nxc3 0-0 11. Nd5 Qd8 12. Qh5 d6 13. Rad1 b6 14. Rd3 Be6 15. Rg3 Bxd5 16. Qxh6 g6 17. Rh3 1-0

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "6"]
[White "Diaz Perez, Michel Alejandro"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "D42"]
[WhiteElo "2473"]
[BlackElo "2476"]
[PlyCount "120"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 e6 4. e3 d5 5. d4 Nf6 6. cxd5 Nxd5 7. Bd3 cxd4 8. exd4 Be7 9. 0-0 0-0 10. a3 b6 11. Qe2 Bb7 12. Rd1 Rc8 13. Ne4 g6 14. Bh6 Re8 15. Rac1 Nf6 16. Bb5 Qd5 17. Nc3 Qh5 18. Bf4 Nd5 19. Nxd5 Qxd5 20. Rc3 Red8 21. Be3 Bf6 22. h3 Ne7 23. Rxc8 Rxc8 24. Ba6 Nf5 25. Bxb7 Qxb7 26. Bg5 Bg7 27. g4 Nd6 28. Bf4 Qd5 29. Be5 h5 30. gxh5 gxh5 31. Kh2 Nf5 32. Rg1 Kf8 33. Bxg7+ Nxg7 34. Ne5 Qxd4 35. Rg3 Nf5 36. Rd3 Qf4+ 37. Kg2 Nh4+ 38. Kf1 Rc1+ 39. Rd1 Rxd1+ 40. Qxd1 Kg7 41. Qxh5 Qc1+ 42. Ke2 Qxb2+ 43. Kf1 Qb1+ 44. Ke2 Qe4+ 45. Kf1 Qh1+ 46. Ke2 Qe4+ 47. Kf1 Ng6 48. Nxg6 fxg6 49. Qg5 Kf7 50. Qd8 Qc4+ 51. Kg1 Qc1+ 52. Kg2 Qxa3 53. Qd7+ Qe7 54. Qc6 Qg5+ 55. Kf1 Qe7 56. Kg2 Kg7 57. Qc3+ Kh7 58. Qc6 e5 59. Qd5 a5 60. Qc6 Qa7 0-1

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "10"]
[White "Hommadov, Amanmuhammet"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "B67"]
[WhiteElo "2070"]
[BlackElo "2476"]
[PlyCount "86"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Be7 9. f4 Bd7 10. Nf3 h6 11. Bh4 0-0 12. e5 Nd5 13. Bxe7 Qxe7 14. Nxd5 exd5 15. Qxd5 Rfd8 16. Qxd6 Qe8 17. Bc4 Be6 18. Qc5 b6 19. Rxd8 Rxd8 20. Qxb6 Bxc4 21. b3 Bd5 22. Rd1 Bxf3 23. Rxd8 Qxd8 24. Qxd8+ Nxd8 25. gxf3 g6 26. Kd2 Kf8 27. Ke3 Ke7 28. b4 Ke6 29. c4 Kf5 30. a4 Ne6 31. a5 Nxf4 32. b5 axb5 33. a6 bxc4 34. Kd4 Ne6+ 35. Kxc4 Nc7 36. a7 Kxe5 37. Kc5 g5 38. Kc6 Na8 39. Kb7 Kd6 40. Kxa8 Kc7 41. f4 f5 42. h4 gxf4 43. h5 f3 1/2-1/2

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "4"]
[White "Ilkhomi, Jaloliddin"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2177"]
[BlackElo "2476"]
[PlyCount "220"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c3 c6 4. Bf4 Bf5 5. e3 e6 6. Bd3 Bxd3 7. Qxd3 Bd6 8. Nbd2 0-0 9. Ne5 Ne8 10. 0-0 f6 11. Nef3 Qc7 12. Bxd6 Nxd6 13. e4 Nd7 14. Rae1 Rae8 15. Re2 dxe4 16. Nxe4 e5 17. Rfe1 exd4 18. Nxd6 Rxe2 19. Qc4+ Kh8 20. Nf7+ Rxf7 21. Rxe2 Ne5 22. Nxe5 fxe5 23. cxd4 Rd7 24. Qc5 Qd6 25. Rxe5 h6 26. Re8+ Kh7 27. Qf5+ g6 28. Qc2 Qxd4 29. Re1 Kg7 30. h3 c5 31. Kh2 b6 32. Re6 Qd3 33. Re7+ Kf6 34. Qxd3 Rxd3 35. Rxa7 Rd2 36. b3 Rxf2 37. Ra6 Kf5 38. a4 Ra2 39. Rxb6 c4 40. bxc4 Rxa4 41. c5 Rc4 42. Rc6 h5 43. Rc8 h4 44. c6 Rc1 45. c7 Kg5 46. g3 Rc2+ 47. Kh1 hxg3 48. Kg1 Rc6 49. Kg2 Rc3 50. Kg1 Rc2 51. Kf1 Rf2+ 52. Kg1 Rf7 53. Kg2 Kf4 54. Rb8 Rxc7 55. Rb4+ Kg5 56. Kxg3 Rc3+ 57. Kg2 Rc2+ 58. Kg3 Rc3+ 59. Kg2 Kh5 60. Rb5+ g5 61. Rb2 Kh4 62. Rb4+ Kh5 63. Rb2 Rd3 64. Rb4 Rd2+ 65. Kg3 Rd3+ 66. Kg2 Ra3 67. Rb2 Re3 68. Rb8 Ra3 69. Rh8+ Kg6 70. Rg8+ Kf6 71. Rf8+ Ke7 72. Rf3 Ra4 73. Kg3 Ke6 74. Rf2 Rb4 75. Rf1 Rc4 76. Rf8 Rd4 77. Rf3 Rc4 78. Ra3 Rb4 79. Ra5 Kf6 80. Ra6+ Kf5 81. Ra5+ Kg6 82. Ra8 Rb3+ 83. Kg4 Rb4+ 84. Kg3 Kh5 85. Rh8+ Kg6 86. Rg8+ Kh6 87. Rh8+ Kg7 88. Rd8 Rc4 89. Rd6 Kf7 90. Ra6 Kg7 91. Rb6 Kh7 92. Rd6 Kg7 93. Rd3 Kg6 94. Rd6+ Kh5 95. Rd8 Rc3+ 96. Kg2 Rc6 97. Rh8+ Rh6 98. Rd8 Ra6 99. Kg3 Ra3+ 100. Kg2 Ra2+ 101. Kg3 Ra3+ 102. Kg2 Kg6 103. Rd6+ Kf5 104. Rd5+ Kf4 105. Rd4+ Ke5 106. Rg4 Kf5 107. Rb4 Rc3 108. Rb5+ Kf4 109. Rb4+ Kf5 110. Rb5+ Kf4 1/2-1/2

[Event "Titled Tuesday intern op 19th Sep Early"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "7"]
[White "Matlakov, Maxim"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2674"]
[BlackElo "2476"]
[PlyCount "109"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 Be7 4. e3 b6 5. Nbd2 Bb7 6. Bd3 h6 7. Bh4 d6 8. 0-0 Nbd7 9. e4 e5 10. c3 0-0 11. Re1 Nh5 12. Bg3 Nxg3 13. hxg3 Bf6 14. Nf1 g6 15. Ne3 Bg7 16. d5 a5 17. g4 Ba6 18. Bxa6 Rxa6 19. g3 b5 20. Kg2 Nc5 21. Qc2 a4 22. Nh4 Bf6 23. Rh1 Bg5 24. Rae1 Qd7 25. Nef5 gxf5 26. Nxf5 Raa8 27. Rh5 f6 28. Rf1 Rae8 29. Rfh1 Kf7 30. b4 axb3 31. axb3 Rh8 32. b4 Na4 33. c4 bxc4 34. Qxc4 Nb6 35. Qc2 Rc8 36. Nxh6+ Rxh6 37. Rxh6 Bxh6 38. Rxh6 Qxg4 39. Rh7+ Kg8 40. f3 Qg6 41. Rxc7 Qe8 42. Rc6 Kf7 43. b5 Rxc6 44. dxc6 Ke7 45. Qf2 Qb8 46. g4 Qa7 47. Qh4 Qa2+ 48. Kg3 Qb1 49. Qh7+ Ke6 50. Qg8+ Ke7 51. Qg7+ Ke6 52. Qg8+ Ke7 53. Qh7+ Ke6 54. Qf5+ Ke7 55. Qh7+ 1/2-1/2

[Event "Timisoara Foisor Memorial Rapid"]
[Site "Timisoara"]
[Date "2023.08.06"]
[Round "5"]
[White "Costachi, Mihnea"]
[Black "Moncayo Romero, Evelyn"]
[Result "1-0"]
[ECO "C27"]
[WhiteElo "2476"]
[BlackElo "2110"]
[PlyCount "67"]
[EventDate "2023.08.05"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nc3 Nf6 2. e4 e5 3. Bc4 Bb4 4. Nge2 0-0 5. Bb3 Nc6 6. 0-0 Na5 7. d3 Nxb3 8. axb3 h6 9. f4 Bc5+ 10. Kh1 Ng4 11. Qe1 d6 12. Qg3 Kh7 13. h3 Nf6 14. fxe5 dxe5 15. Qxe5 Bd6 16. Qd4 Nh5 17. e5 Be7 18. Qxd8 Bxd8 19. g4 b6 20. Kh2 Bb7 21. gxh5 Bh4 22. Ra4 Be7 23. Raf4 f6 24. d4 c5 25. d5 fxe5 26. Rxf8 Bxf8 27. Rf7 Rb8 28. Ng3 Kg8 29. Rd7 a6 30. Nce4 b5 31. Nf5 Bc8 32. Nxh6+ Kh8 33. Rd8 gxh6 34. Bxh6 1-0

[Event "Timisoara Foisor Memorial Rapid"]
[Site "Timisoara"]
[Date "2023.08.06"]
[Round "8"]
[White "Costachi, Mihnea"]
[Black "Ognean, Mihnea Ionut"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2476"]
[BlackElo "2355"]
[PlyCount "140"]
[EventDate "2023.08.05"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. Nc3 d5 2. d4 Nf6 3. Bf4 c5 4. e3 cxd4 5. exd4 Bg4 6. Be2 Bxe2 7. Qxe2 Nc6 8. Nf3 e6 9. 0-0 Be7 10. Qe3 Qb6 11. Rab1 Rc8 12. Ne2 0-0 13. c3 Qa6 14. Nc1 Na5 15. Ne5 Nc4 16. Qf3 Ne4 17. Nxc4 Qxc4 18. a3 b5 19. Nd3 a5 20. Qe3 Rfe8 21. f3 Nd6 22. Bxd6 Bxd6 23. Ne5 Qb3 24. Qe2 Bxe5 25. dxe5 Rc4 26. Qd1 Qxd1 27. Rfxd1 g5 28. Kf2 Kg7 29. Ke3 Kg6 30. g4 Rec8 31. Rd4 f6 32. exf6 Kxf6 33. Rxc4 bxc4 34. Rd1 Rb8 35. Rd2 Ke5 36. Rc2 Rb3 37. Kf2 Kf4 38. Rd2 e5 39. h3 a4 40. Ke2 Rb5 41. Kf2 e4 42. fxe4 dxe4 43. Ke2 Rb8 44. Rc2 e3 45. Kf1 Ke4 46. Ke2 Rf8 47. Ke1 Kd3 48. Rh2 Rf3 49. h4 Rg3 50. Kf1 gxh4 51. Rxh4 e2+ 52. Kf2 Rf3+ 53. Kxf3 e1Q 54. Rh5 Qe3+ 55. Kg2 Qf4 56. Kh3 Ke2 57. Kh4 h6 58. Kh3 Qe3+ 59. Kh4 Qf2+ 60. Kh3 Qf3+ 61. Kh4 Qh1+ 62. Kg3 Qg1+ 63. Kh3 Kd3 64. Ra5 Qe3+ 65. Kh4 Kc2 66. Rxa4 Qe7+ 67. Kh3 Qe3+ 68. Kh4 Qf4 69. Kh3 Kxb2 70. Ra8 Qf3+ 0-1

[Event "Timisoara Foisor Memorial Rapid"]
[Site "Timisoara"]
[Date "2023.08.06"]
[Round "7"]
[White "Martirosyan, Haik M"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2683"]
[BlackElo "2476"]
[PlyCount "111"]
[EventDate "2023.08.05"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 g6 6. Bf4 Bg7 7. h3 Bf5 8. Qb3 Ra7 9. e3 0-0 10. Be2 Ne4 11. 0-0 Re8 12. Bh2 Nd7 13. Rfd1 e5 14. Bf1 exd4 15. exd4 Nxc3 16. Qxc3 b6 17. cxb6 Qxb6 18. Rac1 Bh6 19. Re1 Raa8 20. Rcd1 a5 21. Bd6 Nf6 22. Bc5 Qc7 23. Rxe8+ Rxe8 24. Re1 Rxe1 25. Qxe1 Ne4 26. Ba3 Qb6 27. Qe2 Bg7 28. Qe3 Bf8 29. Bxf8 Kxf8 30. Qa3+ Ke8 31. Be2 c5 32. dxc5 Qxc5 33. Qxc5 Nxc5 34. Nd4 Bd3 35. Bd1 Kd7 36. f3 Kd6 37. a3 Bc4 38. b3 Ba6 39. Kf2 h5 40. h4 Nd3+ 41. Ke3 Nc5 42. g4 Nd7 43. g5 Kc5 44. f4 Nf8 45. f5 Kd6 46. b4 axb4 47. axb4 Bc4 48. Bc2 Ke5 49. Nf3+ Kd6 50. Kd4 gxf5 51. Bxf5 Ne6+ 52. Bxe6 Kxe6 53. Ne5 Be2 54. Nd3 Kf5 55. b5 Ke6 56. Nf4+ 1-0

[Event "Timisoara Foisor Memorial Rapid"]
[Site "Timisoara"]
[Date "2023.08.05"]
[Round "4"]
[White "Lupulescu, Constantin"]
[Black "Costachi, Mihnea"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2584"]
[BlackElo "2476"]
[PlyCount "157"]
[EventDate "2023.08.05"]
[EventType "swiss (rapid)"]
[EventRounds "10"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 Bg4 5. h3 Bh5 6. Nc3 e6 7. g4 Bg6 8. Ne5 Nbd7 9. Nxg6 hxg6 10. Bd2 Bb4 11. cxd5 exd5 12. Qb3 Bxc3 13. Bxc3 Qb6 14. f3 0-0-0 15. Qxb6 Nxb6 16. b3 Rde8 17. Kf2 Kd7 18. Bd3 Nc8 19. Bd2 Nd6 20. Kg3 g5 21. h4 gxh4+ 22. Rxh4 Rxh4 23. Kxh4 Rh8+ 24. Kg3 b6 25. Re1 Re8 26. Rh1 g6 27. Kf2 c5 28. dxc5 bxc5 29. Bc3 Ke6 30. Rc1 Rc8 31. Ba6 Rc6 32. Bf1 c4 33. Bd4 Nd7 34. Rc2 Nb6 35. a4 Rc8 36. bxc4 Ndxc4 37. g5 Kd6 38. Ra2 Na5 39. Rb2 Nac4 40. Ra2 Na5 41. Bb5 Rc1 42. Kg3 Nac4 43. Rh2 Ke6 44. Kf4 Nd6 45. Bd3 Nxa4 46. Ra2 Nc3 47. Rxa7 Ncb5 48. Bxb5 Nxb5 49. Ra6+ Kd7 50. Ke5 Nc7 51. Ra7 Rc6 52. Rb7 Re6+ 53. Kf4 Kc8 54. Rb1 Kd7 55. Be5 Rc6 56. Rb7 Rc4+ 57. Kg3 Kc8 58. Ra7 Kd7 59. f4 Kc8 60. Kf3 Rc2 61. Bxc7 Rxc7 62. Ra6 Kd7 63. Ke2 Rc3 64. Kd2 Rb3 65. Rf6 Ke7 66. Ra6 Kd7 67. Ra5 Ke6 68. Ke2 Rb2+ 69. Kd3 Rb3+ 70. Kd4 Rb4+ 71. Kc3 Re4 72. Kd3 Rb4 73. Ra6+ Ke7 74. Rc6 Kd7 75. Rf6 Ke7 76. f5 gxf5 77. Rxf5 Ke6 78. Rf6+ Ke7 79. Rf5 1/2-1/2

[Event "Titled Tuesday intern op 16th May Late"]
[Site "Chess.com INT"]
[Date "2023.05.16"]
[Round "1"]
[White "Liu, Casper Yukun"]
[Black "Costachi, Mihnea"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2278"]
[BlackElo "2476"]
[PlyCount "55"]
[EventDate "2023.05.16"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 e5 4. d4 cxd4 5. cxd4 d5 6. exd5 Qxd5 7. Nc3 Qa5 8. d5 Nb4 9. a3 Na6 10. Nxe5 Bd6 11. Nc4 Qd8 12. Nxd6+ Qxd6 13. Nb5 Qe5+ 14. Be2 Nf6 15. 0-0 Qxd5 16. Qxd5 Nxd5 17. Bf3 Nac7 18. Re1+ Kf8 19. Nd6 Be6 20. Nxb7 Rb8 21. Nc5 Ke7 22. Bg5+ f6 23. Bh4 Rhd8 24. Bg3 Rbc8 25. Rad1 Kf7 26. Nxe6 Nxe6 27. Bxd5 Rxd5 28. Rxd5 1-0

[Event "Titled Tuesday intern op 09th May Early"]
[Site "Chess.com INT"]
[Date "2023.05.09"]
[Round "4"]
[White "Agibileg, Uurtsaikh"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "A18"]
[WhiteElo "2441"]
[BlackElo "2476"]
[PlyCount "169"]
[EventDate "2023.05.09"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 Nc6 3. Nc3 e6 4. e4 Bb4 5. e5 Ne4 6. Qd3 d5 7. Nf3 0-0 8. Be2 b6 9. 0-0 Ba6 10. Nxe4 Bxc4 11. Qc2 Bxe2 12. Neg5 g6 13. Qxe2 Re8 14. Nh3 Be7 15. Bh6 Bf8 16. Bxf8 Rxf8 17. Qd2 Ne7 18. g4 Kh8 19. Rfc1 Rc8 20. Qg5 Ng8 21. Qxd8 Rfxd8 22. b4 c6 23. a4 Ne7 24. a5 Rc7 25. axb6 axb6 26. Nf4 Rdc8 27. Nd3 Kg7 28. Kg2 h6 29. Ra6 Rb8 30. b5 Kg8 31. bxc6 Rxc6 32. Rxc6 Nxc6 33. Ra3 Na5 34. Nd2 Nc6 35. Rb3 Nxd4 36. Rb1 g5 37. Nb3 Nc6 38. Rc1 Ne7 39. Nd4 Ng6 40. Rb1 Kg7 41. Kf3 Nh4+ 42. Ke2 Ng6 43. Rb5 Ne7 44. Nb4 Ng6 45. Nd3 Ne7 46. Nc5 bxc5 47. Rxb8 cxd4 48. Rb6 Ng6 49. Rb4 Nf4+ 50. Kd2 d3 51. Ke3 Kg6 52. Rb8 h5 53. gxh5+ Kxh5 54. Rg8 Kh6 55. h4 Ng2+ 56. Kxd3 Nxh4 57. Kd4 Nf3+ 58. Ke3 Nxe5 59. f4 gxf4+ 60. Kxf4 Ng6+ 61. Kg4 Kh7 62. Rd8 Kg7 63. Kg5 Ne5 64. Ra8 Nf3+ 65. Kf4 Nd4 66. Ke5 Nf5 67. Ra7 Nh4 68. Ra1 Ng6+ 69. Kd6 Kf6 70. Rf1+ Kg7 71. Rf2 Nh4 72. Ke7 Nf5+ 73. Kd7 Kf6 74. Kc6 Ke5 75. Kc5 d4 76. Re2+ Kf4 77. Rd2 Ke3 78. Ra2 e5 79. Kc4 e4 80. Ra5 Nd6+ 81. Kd5 Nf5 82. Ke5 Ng3 83. Ra7 f5 84. Rg7 f4 85. Rg4 0-1

