[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "8.15"]
[White "Antal, Hunor Zoltan"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2263"]
[BlackElo "2064"]
[PlyCount "85"]
[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 "Dinamo"]
[BlackTeam "Buzau Gloria"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. a3 c5 2. e4 Nc6 3. Nf3 d6 4. Nc3 Nf6 5. d4 cxd4 6. Nxd4 e5 7. Nf3 Be6 8. Be2 Be7 9. Bg5 0-0 10. 0-0 h6 11. Bxf6 Bxf6 12. Nd5 Bxd5 13. Qxd5 Qb6 14. b4 Rac8 15. Bc4 Ne7 16. Qd3 Qc6 17. Bb3 Ng6 18. g3 Qc3 19. Rfd1 Qxd3 20. Rxd3 Rfd8 21. Rad1 Be7 22. Nd2 b5 23. Nf1 Nf8 24. Ne3 Ne6 25. Nf5 Bf8 26. Bxe6 fxe6 27. Nxd6 Rxc2 28. Nxb5 Rxd3 29. Rxd3 a6 30. Rc3 Rd2 31. Nc7 Rd6 32. Kg2 Kf7 33. Rc5 Rd4 34. Rc6 Bxb4 35. axb4 Rxb4 36. Rxa6 Rxe4 37. Nxe6 Rc4 38. h4 e4 39. h5 Rc2 40. Kf1 e3 41. fxe3 Rh2 42. Nf4 Rc2 43. e4 1-0

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "1.19"]
[White "Costin, Alexandru"]
[Black "Matei Catruna, Andrei"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2064"]
[BlackElo "1407"]
[PlyCount "80"]
[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 "Central de Sah Club"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. e4 c5 2. d4 d6 3. Nf3 Nf6 4. dxc5 Nxe4 5. cxd6 Nxd6 6. Bd3 Nc6 7. h3 g6 8. c3 Bg7 9. 0-0 0-0 10. Qc2 Qc7 11. Na3 a6 12. Nc4 Nxc4 13. Bxc4 Bf5 14. Qe2 e5 15. Nh4 Be6 16. Bxe6 fxe6 17. Qg4 Rfe8 18. Bg5 Qf7 19. Rad1 Bf6 20. Nf3 Bxg5 21. Qxg5 Qf5 22. Rfe1 Rad8 23. Rxd8 Rxd8 24. Qe3 Kf7 25. Ng5+ Kg8 26. g4 Qf6 27. Ne4 Qf4 28. Qxf4 exf4 29. Nc5 e5 30. b4 Rd2 31. Nxb7 Rxa2 32. Nc5 Rc2 33. Nxa6 Rxc3 34. b5 Nd4 35. Rb1 Rxh3 36. b6 f3 37. Re1 Ne2+ 38. Rxe2 fxe2 39. b7 e1Q+ 40. Kg2 Qh1# 0-1

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "3.15"]
[White "Costin, Alexandru"]
[Black "Muntean, Brianna Delena"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2064"]
[PlyCount "89"]
[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 "Cugir Metalurgistul III"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. e4 e5 2. Nf3 Nc6 3. d4 d6 4. Bc4 Nf6 5. 0-0 Nxe4 6. Re1 d5 7. Bb5 Bd7 8. Bxc6 Bxc6 9. Nxe5 Bd6 10. f3 Bxe5 11. fxe4 0-0 12. dxe5 dxe4 13. Qxd8 Raxd8 14. Nc3 Rd4 15. Be3 Rc4 16. Rad1 h6 17. Rd4 Rc5 18. Rxe4 Rxc3 19. bxc3 Bxe4 20. Bc5 Rd8 21. Rxe4 Rd1+ 22. Kf2 Rd2+ 23. Re2 Rd5 24. Bxa7 Ra5 25. Bb8 c6 26. Ke3 Rxa2 27. Kd4 Ra8 28. Bd6 Rd8 29. Kc5 Re8 30. Kb6 f6 31. e6 Rd8 32. Kc7 Re8 33. Kd7 Ra8 34. e7 Kf7 35. e8Q+ Rxe8 36. Rxe8 Kg6 37. Kc7 f5 38. Rf8 h5 39. Bf4 c5 40. Kd7 b5 41. Ke6 h4 42. Rxf5 h3 43. Rg5+ Kh7 44. Kf7 hxg2 45. Rh5# 1-0

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "6.15"]
[White "Costin, Alexandru"]
[Black "Stingu, Alin"]
[Result "1/2-1/2"]
[ECO "D34"]
[WhiteElo "2064"]
[BlackElo "1758"]
[PlyCount "146"]
[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 "Resita Muncitoresc"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. c4 e6 2. g3 d5 3. Bg2 c5 4. d4 Nf6 5. Nf3 Nc6 6. 0-0 Be7 7. Nc3 0-0 8. cxd5 exd5 9. Bg5 c4 10. b3 cxb3 11. Qxb3 Na5 12. Qc2 h6 13. Bf4 Be6 14. Ne5 Rc8 15. Qd3 Nc4 16. Rab1 b6 17. Nb5 a6 18. Na7 Rc7 19. Nec6 Qd7 20. Bxc7 Qxc7 21. Nxe7+ Qxe7 22. Nc6 Qd6 23. Ne5 b5 24. f4 g6 25. Nxg6 fxg6 26. Qxg6+ Kh8 27. f5 Bf7 28. Qxh6+ Kg8 29. Qg5+ Kh7 30. Rf4 Nh5 31. Rh4 Qh6 32. Qxh6+ Kxh6 33. g4 Kg5 34. Rxh5+ Bxh5 35. gxh5 Rxf5 36. Rb3 Rf4 37. Rg3+ Kxh5 38. e3 Rf5 39. Rf3 Rg5 40. Kf2 Rg7 41. Rh3+ Kg6 42. Rg3+ Kf6 43. Rxg7 Kxg7 44. Bxd5 Nb6 45. Bc6 Na4 46. d5 Nc3 47. d6 Kf6 48. e4 Ke6 49. e5 b4 50. d7 Ke7 51. Ke3 Nxa2 52. Kd2 b3 53. Bd5 Kxd7 54. Bxb3 Nb4 55. Ke3 Ke7 56. Ke4 Nc6 57. h4 Kf8 58. e6 Nd8 59. e7+ Kxe7 60. Kf5 Nc6 61. Kg6 Ne5+ 62. Kf5 Kf8 63. Kf6 Ng4+ 64. Kg6 Ne5+ 65. Kh7 Ng4 66. Be6 Nf6+ 67. Kg6 Ke7 68. Bc4 a5 69. Bb3 Ng4 70. h5 Ne5+ 71. Kg7 Ng4 72. Bd1 Ne3 73. h6 Nf5+ 1/2-1/2

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "7.11"]
[White "Costin, Alexandru"]
[Black "Teodorescu, Razvan"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2064"]
[BlackElo "2118"]
[PlyCount "66"]
[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. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 Nc6 6. cxd4 d6 7. exd6 Qxd6 8. Nc3 e6 9. Be2 Be7 10. 0-0 0-0 11. Bd3 b6 12. Ne4 Qd8 13. Qe2 Ncb4 14. Bc4 Bb7 15. a3 Nc6 16. Rd1 Rc8 17. Bg5 Bxg5 18. Nexg5 Nce7 19. Ne5 h6 20. Nh3 Nf6 21. Nf4 Ned5 22. Nxd5 Nxd5 23. Qg4 Nf6 24. Qh4 Bd5 25. Bd3 Qd6 26. b4 Rc3 27. Rdc1 Rfc8 28. Rxc3 Rxc3 29. Bf1 Qc7 30. Qf4 Rc2 31. h3 Qc3 32. Bd3 Qxa1+ 33. Bf1 Qc3 0-1

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "4.11"]
[White "Jiros, Doru"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "A12"]
[WhiteElo "1839"]
[BlackElo "2064"]
[PlyCount "122"]
[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"]
[BlackTeam "Buzau Gloria"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. Nf3 d5 2. e3 c6 3. c4 Nf6 4. b3 Bg4 5. Bb2 e6 6. Be2 Nbd7 7. d4 Bb4+ 8. Nbd2 Ne4 9. 0-0 Nc3 10. Bxc3 Bxc3 11. Rc1 Bb4 12. e4 dxe4 13. Nxe4 Bf5 14. Ng3 Bg6 15. Bd3 Bxd3 16. Qxd3 0-0 17. Rfd1 Nf6 18. Ne4 Nxe4 19. Qxe4 Re8 20. Ne5 Qe7 21. Rd3 Rad8 22. Rcd1 Bd6 23. h3 Qc7 24. Kh1 Bf8 25. f4 f6 26. Nf3 Bd6 27. f5 exf5 28. Qxf5 Bg3 29. Qg4 Qf4 30. Qxf4 Bxf4 31. d5 cxd5 32. Rxd5 Rxd5 33. cxd5 Rd8 34. Kg1 Bg3 35. Kf1 Kf7 36. Ng1 Ke7 37. Ne2 Be5 38. Kf2 Kd6 39. Kf3 f5 40. Nf4 Rc8 41. Rd2 Rc3+ 42. Rd3 Rxd3+ 43. Nxd3 Kxd5 44. h4 Bd6 45. h5 Kd4 46. Nf4 Kc3 47. Nd5+ Kb2 48. Ne3 Kxa2 49. Nxf5 Be5 50. Ke4 Bc3 51. b4 Kb3 52. b5 Kc4 53. Nd6+ Kc5 54. Nxb7+ Kxb5 55. Nd6+ Kc6 56. Nc4 a5 57. g4 a4 58. g5 g6 59. h6 Kc5 60. Kd3 Bh8 61. Ne3 a3 0-1

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "2.7"]
[White "Nastore, Pavel Alexandru"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "A33"]
[WhiteElo "2182"]
[BlackElo "2064"]
[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 "Buzau Gloria"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. Bg2 cxd4 5. 0-0 Nc6 6. Nxd4 Bc5 7. Nb3 Be7 8. c4 d6 9. Nc3 0-0 10. Nd4 Bd7 11. Nc2 a6 12. Bf4 e5 13. Bc1 Be6 14. Ne3 Rc8 15. Ned5 Na5 16. b3 Nxd5 17. Nxd5 Bxd5 18. Bxd5 b5 19. cxb5 axb5 20. Qd3 Qd7 21. Bd2 Nb7 22. b4 Nd8 23. Be3 Ne6 24. Bb3 Rfd8 25. Rfd1 Nd4 26. Bxd4 exd4 27. Rac1 Bf6 28. Qe4 Re8 29. Qf3 h6 30. Rxc8 Rxc8 31. Qe4 Re8 32. Qd3 Rc8 33. Qe4 Re8 34. Qd3 1/2-1/2

[Event "ROM-chT Rapid"]
[Site "Sebes"]
[Date "2023.12.02"]
[Round "5.3"]
[White "Parligras, Mircea Emilian"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2534"]
[BlackElo "2064"]
[PlyCount "53"]
[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 "Bucharest ASE"]
[BlackTeam "Buzau Gloria"]
[WhiteTeamCountry "ROU"]
[BlackTeamCountry "ROU"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Bd6 6. Be2 Nbd7 7. b3 b6 8. Bb2 Bb7 9. 0-0 0-0 10. a4 a6 11. Bd3 c5 12. cxd5 exd5 13. Rc1 Rc8 14. Qe2 c4 15. bxc4 dxc4 16. Bxc4 Bxf3 17. gxf3 Bxh2+ 18. Kg2 Bd6 19. Bxa6 Nd5 20. Ne4 Rxc1 21. Rxc1 Bb8 22. Ba3 Qh4 23. Rh1 Qd8 24. Bxf8 Nxf8 25. Qc4 Nc7 26. Bb7 Nce6 27. Qc8 1-0

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "10"]
[White "Bulau, Andrei Cristian"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2172"]
[BlackElo "2088"]
[PlyCount "75"]
[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. Nc3 e6 4. e3 Nf6 5. Nf3 Nbd7 6. Be2 Bd6 7. 0-0 0-0 8. Qc2 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. Rd1 Qe7 12. h3 h6 13. e4 e5 14. Be3 Rfd8 15. Nh4 Qe8 16. d5 b4 17. dxc6 Bxc6 18. Nb5 Bxb5 19. Bxb5 Bf8 20. Nf5 Rac8 21. Qe2 Qe6 22. Bxa7 Bc5 23. Bxc5 Nxc5 24. Bc4 Qe8 25. Nd6 Rxd6 26. Rxd6 Ncxe4 27. Rdd1 Qe7 28. Rac1 Rb8 29. Bd5 Nd6 30. Bb3 Nf5 31. Bc2 e4 32. Re1 Re8 33. Rcd1 Qe5 34. Bb3 Nh4 35. Qd2 Ng6 36. Qd6 Qg5 37. Qg3 Qc5 38. Qxg6 1-0

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "7"]
[White "Costin, Alexandru"]
[Black "Filip, Lucian Ioan"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "2088"]
[BlackElo "2352"]
[PlyCount "76"]
[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 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 a6 6. Nf3 Qc7 7. Qe2 Ne7 8. 0-0 Ng6 9. Rd1 Be7 10. Bb3 0-0 11. Be3 Nc6 12. Na4 b5 13. Nb6 Rb8 14. Nxc8 Rfxc8 15. Rac1 Qb7 16. Qd2 Rd8 17. Ng5 h6 18. Nh3 Bb4 19. Qe2 Na5 20. Bc2 Nc4 21. Bd3 Nxe3 22. Qxe3 Qb6 23. Qxb6 Rxb6 24. Rc7 Rc6 25. Rc1 Ba5 26. R7xc6 dxc6 27. Bf1 Rd6 28. a4 Kf8 29. Ra1 Bb6 30. axb5 axb5 31. Ra6 Bc5 32. g3 Ke7 33. Ra1 Rd2 34. Ra6 Kd7 35. b4 Bd4 36. Kg2 Ne5 37. Ra3 g5 38. Rb3 g4 0-1

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "9"]
[White "Costin, Alexandru"]
[Black "Nedelcu, Teodor Cosmin"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "2088"]
[BlackElo "2303"]
[PlyCount "90"]
[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. c4 c5 2. Nf3 Nc6 3. Nc3 e6 4. g3 Nge7 5. Bg2 g6 6. d4 cxd4 7. Nxd4 Bg7 8. Ndb5 0-0 9. Bf4 e5 10. Be3 Nf5 11. Bc5 Re8 12. Nd5 d6 13. Ba3 Be6 14. Ndc7 a6 15. Nxe8 axb5 16. Nxg7 Kxg7 17. cxb5 Qa5+ 18. Qd2 Qxb5 19. 0-0 Ncd4 20. e3 Nc6 21. Rfd1 h5 22. Bxd6 h4 23. a4 Rxa4 24. Rxa4 Qxa4 25. Bxc6 Qxc6 26. Qc3 Qa4 27. Bxe5+ Kh7 28. Qd3 h3 29. e4 Nh6 30. Qd8 f6 31. Bxf6 Nf7 32. Qd4 Qb3 33. Qd3 Qa4 34. Re1 Bc4 35. Qe3 Qc6 36. Bc3 Kg8 37. Qd4 Kf8 38. Rd1 Qa4 39. Qc5+ Kg8 40. Qc8+ Kh7 41. Qxh3+ Kg8 42. Qg4 Kh7 43. Qd7 Qc2 44. Qd4 Ne5 45. Kg2 Qe2 1-0

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "5"]
[White "Costin, Alexandru"]
[Black "Secheres, Adrian Simion"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2088"]
[BlackElo "2381"]
[PlyCount "122"]
[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. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. b3 e5 7. dxe5 dxe5 8. Bb2 e4 9. Qxd8 Rxd8 10. Ng5 Bf5 11. Na3 h6 12. Nh3 Na6 13. Nc4 Nb4 14. Ne3 Bd7 15. c4 a5 16. a3 Na6 17. Bc3 Nc5 18. Rab1 c6 19. Rfd1 a4 20. bxa4 Nxa4 21. Bxf6 Bxf6 22. Rxb7 Nc5 23. Rb6 Rxa3 24. Nd5 Bxh3 25. Rxc6 Kg7 26. Bxh3 Na4 27. e3 Be5 28. Ra6 h5 29. Ra7 Rd3 30. Rb1 Nb2 31. Bg2 Nxc4 32. Bxe4 R3xd5 33. Bxd5 Rxd5 34. Rbb7 Nd6 35. Rd7 Rd1+ 36. Kg2 Rd2 37. Kf3 g5 38. h3 Kf6 39. Ra4 Ke6 40. Raa7 Rb2 41. Re7+ Kf6 42. Red7 Kf5 43. g4+ hxg4+ 44. hxg4+ Ke6 45. Re7+ Kf6 46. Rec7 Rb4 47. Rd7 Kg6 48. Rxd6+ Bxd6 49. Ra6 f6 50. Rxd6 Kf7 51. Rd4 Rb2 52. Kg3 Kg6 53. f4 gxf4+ 54. exf4 Rb3+ 55. Kh4 Rb1 56. Rd3 Rh1+ 57. Kg3 Rg1+ 58. Kf3 Rf1+ 59. Kg3 Rg1+ 60. Kh4 Rh1+ 61. Rh3 Rg1 1/2-1/2

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "6"]
[White "Creanga, Robert Ionut"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2273"]
[BlackElo "2088"]
[PlyCount "135"]
[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 c6 2. Nf3 d5 3. Nc3 Bg4 4. h3 Bxf3 5. Qxf3 dxe4 6. Nxe4 Nd7 7. Be2 Ngf6 8. 0-0 e6 9. d4 Nxe4 10. Qxe4 Nf6 11. Qd3 Be7 12. Rd1 0-0 13. Bf4 Nd5 14. Bd2 Bg5 15. Qb3 Bxd2 16. Rxd2 Qg5 17. Rad1 Nf4 18. Bf1 b6 19. Qf3 Rad8 20. g3 Nd5 21. h4 Qf6 22. Qe4 Ne7 23. c3 Qg6 24. Qf4 Nd5 25. Qf3 Qf6 26. Qe4 Rfe8 27. Bd3 g6 28. Re2 Ne7 29. Rde1 Rd6 30. Re3 Nf5 31. Rf3 Qg7 32. Qf4 Red8 33. Bxf5 gxf5 34. Re5 Kh8 35. Kh2 R6d7 36. Rfe3 Rg8 37. Re1 Qf6 38. f3 Rdd8 39. Kh3 Rg6 40. h5 Rg5 41. g4 fxg4+ 42. Kg3 Qxf4+ 43. Kxf4 Rxe5 44. Kxe5 gxf3 45. Kf6 f2 46. Rf1 Rd5 47. Kxf7 Rxh5 48. Kxe6 Rh2 49. c4 Kg7 50. d5 cxd5 51. cxd5 Kf8 52. Kd7 Rg2 53. d6 h5 54. Kc8 Rg8 55. d7 Ke7+ 56. Kc7 Rd8 57. Rxf2 Rxd7+ 58. Kc6 Rd6+ 59. Kb7 Rd7+ 60. Kc6 h4 61. Rh2 Rd4 62. Kb7 Kf6 63. Kxa7 Ra4+ 64. Kxb6 Rxa2 65. Rxh4 Rxb2+ 66. Kc5 Kg5 67. Rb4 Rxb4 68. Kxb4 1/2-1/2

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.04"]
[Round "2"]
[White "Ardelean, George Catalin"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2433"]
[BlackElo "2088"]
[PlyCount "93"]
[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 c6 2. d4 d5 3. exd5 cxd5 4. Bf4 Nc6 5. c3 e6 6. Nf3 Bd6 7. Bxd6 Qxd6 8. Bd3 Nge7 9. 0-0 h6 10. Re1 0-0 11. Nbd2 Bd7 12. Qe2 Rfc8 13. Rad1 Qc7 14. Nf1 Nf5 15. Ne5 Nxe5 16. dxe5 Ne7 17. Ng3 Ng6 18. Nh5 Be8 19. Qg4 Qe7 20. Bxg6 fxg6 21. Nf4 Rc6 22. Nxg6 Bxg6 23. Qxg6 Rf8 24. Rd4 Qf7 25. Qxf7+ Rxf7 26. f3 g6 27. Kf2 Rb6 28. Re2 Ra6 29. a3 Rc6 30. g4 Kg7 31. Kg3 Rfc7 32. Red2 Rc4 33. Rxc4 Rxc4 34. Rd4 Rc7 35. Rf4 Rc6 36. h4 Rb6 37. Rb4 Rxb4 38. axb4 a6 39. Kf4 Kf7 40. Ke3 Ke7 41. Kd4 b6 42. f4 Kf7 43. f5 h5 44. fxe6+ Kxe6 45. g5 a5 46. bxa5 bxa5 47. b3 1-0

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.22"]
[Round "9"]
[White "Papadakis, Michalis"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2151"]
[BlackElo "1962"]
[PlyCount "121"]
[EventDate "2023.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. g3 Bg4 4. Bg2 Nd7 5. Nbd2 Ngf6 6. 0-0 e6 7. c4 Bd6 8. b3 0-0 9. Bb2 Qc7 10. Rc1 Rfe8 11. Re1 Rad8 12. a3 Ne4 13. Qc2 Bf5 14. Nxe4 Bxe4 15. Qd2 Be7 16. Qe3 Bf6 17. Bh3 Bg6 18. Ne5 dxc4 19. Nxg6 hxg6 20. Rxc4 Qa5 21. b4 Qd5 22. Qd3 Nb6 23. Rc5 Qd6 24. Rd1 Na4 25. Rc2 Nxb2 26. Rxb2 Bxd4 27. Rbd2 Qe5 28. e3 Bb6 29. Qb3 Rxd2 30. Rxd2 Rd8 31. Rxd8+ Bxd8 32. Qd3 Qd5 33. Bf1 Qxd3 34. Bxd3 Bf6 35. Kf1 Kf8 36. Ke2 Ke7 37. a4 Bc3 38. b5 cxb5 39. Bxb5 a6 40. Bc4 Kd6 41. Kd3 Be1 42. f3 Kc5 43. g4 Kb4 44. f4 Kxa4 45. f5 gxf5 46. gxf5 exf5 47. Bxf7 Bb4 48. Be6 Bd6 49. Bc8 Bxh2 50. Bxb7 Kb5 51. Bc8 f4 52. exf4 Bxf4 53. Be6 Kb4 54. Kc2 a5 55. Bf5 g5 56. Be6 Be5 57. Bd7 a4 58. Be6 a3 59. Kd3 g4 60. Kc2 g3 61. Bd5 0-1

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.21"]
[Round "8"]
[White "Costin, Alexandru"]
[Black "Ardeleanu, Alin"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1962"]
[BlackElo "2273"]
[PlyCount "81"]
[EventDate "2023.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Bg7 5. f3 c6 6. Qd2 b5 7. a3 Nbd7 8. d5 c5 9. Bxb5 0-0 10. Bxd7 Nxd7 11. Bh6 Ne5 12. Bxg7 Kxg7 13. Nge2 Rb8 14. b3 a5 15. f4 Nd7 16. 0-0 Ba6 17. Rf3 Bxe2 18. Nxe2 Nf6 19. Ng3 Qc7 20. c4 a4 21. bxa4 Kg8 22. Qc3 Nd7 23. Nf5 Nf6 24. Nh6+ Kg7 25. Rh3 Qb6 26. e5 Ne4 27. Qe1 Qb2 28. Rd1 Qc2 29. Rc1 Qd2 30. Qxd2 Nxd2 31. Ng4 Rb2 32. Nf2 Rfb8 33. Nd1 Nb3 34. Nxb2 Nxc1 35. Nd3 Rb1 36. Kf2 Nxd3+ 37. Rxd3 Rc1 38. Rb3 Rxc4 39. g3 Rxa4 40. Rb7 Rxa3 41. Rxe7 1/2-1/2

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.20"]
[Round "7"]
[White "Bulau, Andrei Cristian"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "B10"]
[WhiteElo "2187"]
[BlackElo "1962"]
[PlyCount "68"]
[EventDate "2023.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. d3 dxe4 4. dxe4 Qxd1+ 5. Kxd1 Bg4 6. Be2 Nd7 7. Be3 e5 8. Nbd2 Ngf6 9. h3 Bxf3 10. Bxf3 Bc5 11. Ke2 Bxe3 12. Kxe3 Nb6 13. a4 Ke7 14. Be2 Rhd8 15. Nf3 Nfd7 16. a5 Nc8 17. Rhd1 Nd6 18. b4 f6 19. Nd2 Nf8 20. Nb3 Ne6 21. Rd2 Rac8 22. Nc5 Nf4 23. g3 Nxe2 24. Kxe2 Nc4 25. Rd3 Rxd3 26. Kxd3 Nd6 27. c3 Rc7 28. f3 Nf7 29. h4 Nd8 30. Kc4 Ne6 31. Nxe6 Kxe6 32. a6 b6 33. Rd1 Rd7 34. Rxd7 Kxd7 1/2-1/2

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.19"]
[Round "6"]
[White "Costin, Alexandru"]
[Black "Kubicka, Anna"]
[Result "1/2-1/2"]
[ECO "B21"]
[WhiteElo "1962"]
[BlackElo "2240"]
[PlyCount "152"]
[EventDate "2023.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. 0-0 a6 8. Qe2 Nf6 9. Rd1 Bd7 10. Bf4 b5 11. Bb3 Qb8 12. h3 Be7 13. e5 dxe5 14. Nxe5 Nxe5 15. Bxe5 Qb7 16. Qd2 Bc6 17. Qg5 0-0 18. Rd3 Ne8 19. Qg4 Bf6 20. f4 Qe7 21. Re1 Bxe5 22. Rxe5 Rd8 23. Rde3 Nf6 24. Qh4 Qa7 25. Kh2 Nd7 26. Rd3 Nxe5 27. Rxd8 Ng6 28. Rxf8+ Nxf8 29. Nd1 Qd4 30. Qf2 Qxf2 31. Nxf2 Nd7 32. Bc2 Bd5 33. Nd3 h6 34. a4 bxa4 35. Bxa4 Nb6 36. Bd1 Nc4 37. Ba4 Be4 38. Nc5 Nxb2 39. Bb3 Bd5 40. Bxd5 exd5 41. Nxa6 d4 42. Nc5 f5 43. Kg3 Kf7 44. Kf3 Ke7 45. Nb3 d3 46. Ke3 Kd6 47. Kd4 h5 48. g3 Nd1 49. Kxd3 Nf2+ 50. Ke3 Nxh3 51. Kf3 Kd5 52. Kg2 Nxf4+ 53. gxf4 Ke4 54. Nc5+ Kd5 55. Nd3 Ke4 56. Nc5+ Kxf4 57. Ne6+ Kg4 58. Nxg7 f4 59. Nxh5 Kxh5 60. Kf3 Kg5 61. Kf2 Kg4 62. Kg2 f3+ 63. Kf2 Kf4 64. Kf1 Ke3 65. Ke1 Kd4 66. Kf2 Ke4 67. Kf1 Kf4 68. Kf2 Kg4 69. Kf1 Kg3 70. Kg1 Kh4 71. Kf2 Kg4 72. Kf1 Kf5 73. Kf2 Ke4 74. Kf1 Ke3 75. Ke1 f2+ 76. Kf1 Ke4 1/2-1/2

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.19"]
[Round "5"]
[White "Nastore, Pavel Alexandru"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "2219"]
[BlackElo "1962"]
[PlyCount "87"]
[EventDate "2023.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 Ngf6 12. 0-0-0 e6 13. Ne4 Nxe4 14. Qxe4 Nf6 15. Qe2 0-0-0 16. c4 Bd6 17. Kb1 c5 18. Bc3 Rhe8 19. dxc5 Qxc5 20. Nd4 Qe5 21. Rde1 Qxe2 22. Rxe2 Bb4 23. Nc6 bxc6 24. Bxb4 Rd4 25. b3 Red8 26. Kc2 Re4 27. Rxe4 Nxe4 28. Be1 e5 29. Rh4 Ng5 30. Bc3 f6 31. b4 a6 32. Rg4 Kd7 33. Rg3 Ke6 34. Rd3 Rxd3 35. Kxd3 Nh7 36. a4 Nf8 37. a5 Nd7 38. Ke4 f5+ 39. Kd3 Kd6 40. f4 e4+ 41. Ke3 Nf6 42. Be5+ Kd7 43. Bxf6 gxf6 44. Ke2 1/2-1/2

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.18"]
[Round "4"]
[White "Costin, Alexandru"]
[Black "Levin, Guy"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1962"]
[BlackElo "2429"]
[PlyCount "69"]
[EventDate "2023.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Nc3 Nxd5 6. Bc4 Nb6 7. Bb3 Nc6 8. Nf3 e6 9. d4 Nb4 10. 0-0 Be7 11. Bf4 0-0 12. a3 N4d5 13. Bg3 Bd7 14. Ne5 Be8 15. Re1 Rc8 16. Nxd5 Nxd5 17. Qf3 Bf6 18. Rad1 Bb5 19. Qg4 Qb6 20. Nxf7 Kxf7 21. Qh5+ g6 22. Qxh7+ Bg7 23. Bxd5 exd5 24. Re7+ Kxe7 25. Qxg7+ Rf7 26. Bh4+ Kd6 27. Qxg6+ Kc7 28. Bg3+ Kd8 29. Qxf7 Qxd4 30. Qf8+ Be8 31. Qd6+ Bd7 32. Qf8+ Be8 33. Re1 Qe4 34. f3 Rc1 35. fxe4 1-0

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.17"]
[Round "2"]
[White "Costin, Alexandru"]
[Black "David, Alexandru Vasile"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1962"]
[BlackElo "2392"]
[PlyCount "72"]
[EventDate "2023.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 e6 6. cxd4 d6 7. Nc3 Nxc3 8. bxc3 Qc7 9. Qb3 Nd7 10. exd6 Bxd6 11. Bd3 b6 12. Ng5 Nf6 13. Ne4 Nxe4 14. Bxe4 Rb8 15. c4 0-0 16. Bd2 e5 17. dxe5 Bxe5 18. Rc1 Re8 19. Be3 Bf4 20. Qd3 Qe5 21. Bc6 Bf5 22. Qc3 Bxe3 23. fxe3 Qxe3+ 24. Qxe3 Rxe3+ 25. Kf2 Ra3 26. Ra1 Be6 27. Bd5 Rd8 28. Rhd1 Kf8 29. h3 Bxd5 30. cxd5 Ra5 31. d6 Rf5+ 32. Kg3 Rf6 33. d7 Ke7 34. Re1+ Re6 35. Rxe6+ fxe6 36. Kf4 Rxd7 1-0

[Event "ICCF FM/3187 email"]
[Site "ICCF email"]
[Date "2018.07.18"]
[Round "?"]
[White "Costin, Alexandru"]
[Black "Korolev, Alexandr"]
[Result "0-1"]
[ECO "D11"]
[PlyCount "25"]
[EventDate "2018.??.??"]
[EventType "match (corr)"]
[EventRounds "2"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. g3 c6 4. Bg2 Bf5 5. 0-0 e6 6. c4 Nbd7 7. Nc3 dxc4 8. Nd2 Nb6 9. e3 Bd3 10. Re1 Nbd5 11. Qa4 Nb4 12. Nf3 Nc2 13. Bd2 0-1

[Event "ICCF FM/3187 email"]
[Site "ICCF email"]
[Date "2018.07.18"]
[Round "?"]
[White "Korolev, Alexandr"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "D31"]
[PlyCount "26"]
[EventDate "2018.??.??"]
[EventType "match (corr)"]
[EventRounds "2"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 Qxg2 9. Bf3 Qg5 10. Ne2 Nd7 11. Rg1 Qf6 12. Nc3 c5 13. Ne4 Qh6 1-0

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.04.03"]
[Round "9"]
[White "Costin, Alexandru"]
[Black "Tablan, Matei Christian"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "1944"]
[BlackElo "1625"]
[PlyCount "96"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 f5 2. Qd3 d5 3. g4 e6 4. gxf5 exf5 5. Nf3 Nf6 6. Bg5 Be7 7. Bh3 Ne4 8. Bxe7 Qxe7 9. c3 c6 10. Nbd2 Na6 11. Qc2 Be6 12. Nxe4 fxe4 13. Bxe6 Qxe6 14. Ne5 Nc5 15. 0-0-0 Nd7 16. Nxd7 Qh6+ 17. Kb1 Kxd7 18. f3 Rhe8 19. Rhf1 Qg6 20. fxe4 Qxe4 21. Rf7+ Re7 22. Qxe4 dxe4 23. Rxe7+ Kxe7 24. Rf1 Rf8 25. Rxf8 Kxf8 26. Kc1 Ke7 27. Kd2 Ke6 28. Ke3 Kf5 29. c4 g5 30. d5 cxd5 31. cxd5 Ke5 32. d6 Kxd6 33. Kxe4 Ke6 34. Kd4 Kd6 35. e4 h6 36. e5+ Ke6 37. Ke4 a5 38. Kd4 h5 39. Ke4 b5 40. Kd4 h4 41. Ke4 h3 42. Kf3 Kxe5 43. Kg4 Kf6 44. Kxh3 Kf5 45. Kg3 g4 46. Kh4 Kf4 47. Kh5 Kf5 48. Kh6 Kf6 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.04.02"]
[Round "8"]
[White "Barbu, Simon Alexandru"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "1613"]
[BlackElo "1944"]
[PlyCount "97"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 Nf6 5. Nf3 Be7 6. Bg5 c6 7. Qc2 0-0 8. e3 Nbd7 9. Bd3 Re8 10. 0-0 Nf8 11. Rab1 a5 12. a3 Ng6 13. b4 axb4 14. axb4 Be6 15. b5 Ra3 16. bxc6 bxc6 17. Ra1 Rxa1 18. Rxa1 c5 19. Bxf6 gxf6 20. dxc5 Bxc5 21. Nb5 Qe7 22. Nbd4 Bxd4 23. Nxd4 Rc8 24. Qd2 Qc5 25. Ne2 Rb8 26. Rc1 Qd6 27. Rb1 Rxb1+ 28. Bxb1 Qb6 29. Bd3 Qc7 30. Qc1 Qxc1+ 31. Nxc1 Kf8 32. Bxg6 fxg6 33. Kf1 Ke7 34. Ke2 Kd6 35. Kd3 Ke5 36. Nb3 Bf5+ 37. Ke2 Bc8 38. Nd4 Ba6+ 39. Kf3 Bc4 40. g4 f5 41. gxf5 gxf5 42. Kg3 f4+ 43. Kf3 fxe3 44. Kxe3 Ba2 45. Nf3+ Kf5 46. Nd4+ Ke5 47. f4+ Kf6 48. Kf3 Bb1 49. Kg4 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.04.01"]
[Round "7"]
[White "Costin, Alexandru"]
[Black "Gorea, Stefan Alin"]
[Result "0-1"]
[ECO "D34"]
[WhiteElo "1944"]
[BlackElo "1485"]
[PlyCount "102"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be6 8. 0-0 c4 9. Bg5 Be7 10. Ne5 0-0 11. Nxc6 bxc6 12. b3 cxb3 13. Qxb3 h6 14. Bf4 Bd6 15. Bxd6 Qxd6 16. Rac1 Rfb8 17. Qc2 Rb4 18. e3 Rab8 19. Rb1 g6 20. Rxb4 Rxb4 21. Rd1 Bf5 22. Qd2 Qb8 23. e4 Nxe4 24. Nxe4 dxe4 25. Qxh6 Rb1 26. Qd2 Rxd1+ 27. Qxd1 Qd6 28. g4 Be6 29. Bxe4 Bxa2 30. Qa4 Bd5 31. Bxd5 cxd5 32. h3 a6 33. Qa5 Kg7 34. Qd2 Qe6 35. Kf1 Qe4 36. Qe3 Qxe3 37. fxe3 Kf6 38. h4 Ke6 39. Ke2 f5 40. g5 a5 41. Kd3 f4 42. e4 dxe4+ 43. Kxe4 f3 44. d5+ Kd6 45. Kxf3 Kxd5 46. Kg4 Ke6 47. h5 gxh5+ 48. Kxh5 Kf7 49. Kh6 Kg8 50. Kg6 a4 51. Kf5 a3 0-1

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.03.31"]
[Round "6"]
[White "Balaban Voia, Alexandru"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "1807"]
[BlackElo "1944"]
[PlyCount "116"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. 0-0 Nd7 5. d3 e5 6. h3 Bh5 7. Nbd2 Bd6 8. e4 Ne7 9. Qe1 0-0 10. Nh4 f6 11. exd5 cxd5 12. c4 Bf7 13. a3 Rc8 14. b3 Bb8 15. Bb2 b6 16. Qe2 Nc5 17. a4 dxc4 18. dxc4 a5 19. Rfd1 Qc7 20. Bc3 Rcd8 21. b4 axb4 22. Bxb4 g5 23. Nhf3 Nd3 24. Bxe7 Qxe7 25. a5 bxa5 26. Rxa5 Ba7 27. Rf1 Qc7 28. Ra3 Bg6 29. Ne1 Nxe1 30. Rxe1 Qc5 31. Raa1 Qxf2+ 32. Qxf2 Bxf2+ 33. Kxf2 Rxd2+ 34. Re2 Rxe2+ 35. Kxe2 Rc8 36. Bb7 Rc7 37. Bd5+ Bf7 38. Ra8+ Kg7 39. Rd8 f5 40. Ke3 Bxd5 41. cxd5 Rc3+ 42. Kf2 e4 43. Rd7+ Kf6 44. Rxh7 Rf3+ 45. Kg2 Ke5 46. Rh5 Kxd5 47. Rxg5 Kd4 48. h4 f4 49. gxf4 Rxf4 50. h5 e3 51. h6 Rh4 52. Kf3 Rxh6 53. Rg8 Rf6+ 54. Ke2 Rf2+ 55. Ke1 Rf4 56. Rd8+ Ke4 57. Ke2 Rf2+ 58. Ke1 Rf6 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.03.30"]
[Round "5"]
[White "Costin, Alexandru"]
[Black "Serban, Cristian Stefan"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "1944"]
[BlackElo "1738"]
[PlyCount "152"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. Bg5 Be7 5. Bxe7 Qxe7 6. Nbd2 dxc4 7. Nxc4 Qb4+ 8. Nfd2 b5 9. a3 Qe7 10. Ne5 f6 11. Nef3 Nd7 12. g3 Bb7 13. Bg2 c5 14. dxc5 Nxc5 15. 0-0 Nh6 16. b4 Na4 17. Nd4 Bxg2 18. Kxg2 0-0 19. Qb3 Rfe8 20. N2f3 a6 21. Rac1 Nf7 22. Rfd1 g6 23. Nc6 Qb7 24. Na5 Qe7 25. Nc6 Qb7 26. Na5 Qe7 27. Rc6 Ra7 28. Nd4 Nd8 29. Rc8 Qd7 30. Qc2 Nb6 31. Rb8 Rc7 32. Qb3 Nd5 33. Nxe6 Nxe6 34. Rxe8+ Qxe8 35. Qxd5 Kg7 36. Nb3 Qc8 37. Nd4 Nxd4 38. Rxd4 Rc3 39. Qd7+ Qxd7 40. Rxd7+ Kf8 41. Rd3 Rc6 42. Kf3 Ke7 43. e4 Ke6 44. Ke3 Rc1 45. f4 Re1+ 46. Kd4 Kd6 47. Re3 Rd1+ 48. Kc3 Rc1+ 49. Kd2 Ra1 50. Rd3+ Ke6 51. Ke3 Re1+ 52. Kf3 Rf1+ 53. Ke2 Ra1 54. h3 Rc1 55. g4 Ra1 56. Ke3 Re1+ 57. Kd4 Kd6 58. Re3 Rd1+ 59. Kc3 Rc1+ 60. Kd2 Ra1 61. Rd3+ Ke6 62. f5+ Ke5 63. fxg6 hxg6 64. Ke3 Re1+ 65. Kf3 Rxe4 66. h4 Re1 67. Re3+ Rxe3+ 68. Kxe3 f5 69. gxf5 Kxf5 70. Kf3 Kf6 71. Kf4 Ke6 72. Ke4 Kf6 73. Kf4 Ke6 74. Kg5 Kf7 75. Kg4 Ke6 76. Kg5 Kf7 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.03.29"]
[Round "3"]
[White "Costin, Alexandru"]
[Black "Mihai, Cristian"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "1944"]
[BlackElo "1814"]
[PlyCount "94"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nd2 g6 5. e4 bxc4 6. Bxc4 d6 7. b3 Bg7 8. Bb2 0-0 9. Ngf3 Re8 10. Qc2 Na6 11. a3 Nc7 12. 0-0 Bd7 13. Rfe1 Bb5 14. Rad1 Rb8 15. Bc3 Nh5 16. Bxg7 Nxg7 17. Bxb5 Nxb5 18. Nc4 a6 19. a4 Na7 20. e5 Nc8 21. Qc3 Rb4 22. exd6 Nxd6 23. Nxd6 exd6 24. Rxe8+ Qxe8 25. Qf6 Nf5 26. Re1 Re4 27. Rxe4 Qxe4 28. Qxf7+ Kxf7 29. Ng5+ Kf6 30. Nxe4+ Ke5 31. f3 Nd4 32. Nd2 Kxd5 33. Kf2 Nc2 34. Ne4 Na1 35. Ke3 Nxb3 36. Nf6+ Ke5 37. Nxh7 c4 38. f4+ Kf5 39. Ng5 c3 40. Kd3 Nc5+ 41. Kxc3 Kxf4 42. Nf7 Nxa4+ 43. Kd4 a5 44. Nxd6 Nb2 45. Nf7 a4 46. Kc3 Nd1+ 47. Kb4 Ne3 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.03.29"]
[Round "4"]
[White "Stroe, Flavius Gabriel"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "1857"]
[BlackElo "1944"]
[PlyCount "72"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Bf4 Nf6 5. e3 Bd6 6. Bxd6 Qxd6 7. Nf3 0-0 8. Bd3 Nbd7 9. 0-0 e5 10. dxe5 Nxe5 11. Nxe5 Qxe5 12. cxd5 Nxd5 13. Nxd5 Qxd5 14. Qc2 h6 15. Rfd1 Qg5 16. Be4 Bg4 17. Rd2 f5 18. Bd3 Bf3 19. g3 Rad8 20. Bf1 Rxd2 21. Qxd2 Rd8 22. Qc3 Qe7 23. Bg2 Bxg2 24. Kxg2 Qe4+ 25. Kg1 Rd3 26. Qe1 Qd5 27. b3 Rd2 28. Qf1 Qf3 29. Qg2 Qe2 30. Qf1 Qf3 31. Qg2 Qxg2+ 32. Kxg2 Kf7 33. a3 Ke6 34. h4 h5 35. Kf3 Ke5 36. Rc1 Rd3 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.03.28"]
[Round "2"]
[White "Musteata, Darius Gabriel Orla"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1680"]
[BlackElo "1944"]
[PlyCount "114"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c6 3. Nf3 Qb6 4. Qc1 Bg4 5. Nbd2 Nd7 6. h3 Bh5 7. e3 Ngf6 8. Bd3 e6 9. c4 Be7 10. a3 c5 11. b4 Bxf3 12. bxc5 Bxc5 13. Nxf3 dxc4 14. Qxc4 Bd6 15. Bxd6 Qxd6 16. 0-0 0-0 17. Qb5 Rfc8 18. e4 a6 19. Qg5 h6 20. Qh4 e5 21. Rfe1 Rc3 22. dxe5 Nxe5 23. Nxe5 Qxe5 24. Rad1 Rxa3 25. Re3 Rd8 26. Rg3 b5 27. Kh1 Qc5 28. f4 Qh5 29. Qxh5 Nxh5 30. Rf3 Nxf4 31. Rxf4 Rdxd3 32. Rdf1 Rd7 33. e5 Re7 34. Rd1 Rxe5 35. Rd8+ Kh7 36. Rxf7 Ra1+ 37. Kh2 Ra2 38. Kg3 Rg5+ 39. Kf3 Rgxg2 40. Ra7 b4 41. Rb8 a5 42. Raa8 Rh2 43. Kg4 Rag2+ 44. Kf5 Rg5+ 45. Ke6 Rxh3 46. Kf7 Rf3+ 47. Ke7 Rff5 48. Rh8+ Kg6 49. Ra6+ Rf6 50. Raa8 Rb5 51. Rhd8 b3 52. Rd1 b2 53. Rg1+ Kh7 54. Rb1 Rc6 55. Rd8 Rc1 56. Rd1 Rxd1 57. Rxd1 b1Q 0-1

[Event "ROM-ch U14"]
[Site "Calimanesti"]
[Date "2018.03.27"]
[Round "1"]
[White "Costin, Alexandru"]
[Black "Nicolae, Andrei M"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "1944"]
[BlackElo "1424"]
[PlyCount "73"]
[EventDate "2018.03.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Bd3 Nbd7 7. Nge2 0-0 8. Ng3 Ne8 9. h4 g6 10. h5 Bg5 11. hxg6 fxg6 12. Qg4 Bxc1 13. Rxc1 Qf6 14. Qe2 Qf4 15. Rc2 Ndf6 16. Qd2 Qxd2+ 17. Rxd2 Nc7 18. Ke2 Bd7 19. a4 a6 20. Ra1 a5 21. f3 b6 22. Nb5 Nxb5 23. cxb5 Ra7 24. Nf1 Kg7 25. Ne3 Ne8 26. Nc4 Rb7 27. Rh1 g5 28. Rdd1 Rf6 29. Ne3 Rf7 30. Rh5 h6 31. Rdh1 Rf6 32. R5h3 Rg6 33. Nf1 Kh7 34. Ng3 Nf6 35. Nf5 Ng8 36. Rh5 Rf6 37. Rxg5 1-0

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.14"]
[Round "9"]
[White "Davtyan, Arsen"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "1969"]
[BlackElo "1812"]
[PlyCount "66"]
[EventDate "2017.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nbd2 f5 5. g3 Nf6 6. Bg2 Bd6 7. 0-0 0-0 8. Qc2 Nbd7 9. Ne1 Ne4 10. Ndf3 Qf6 11. Bf4 g5 12. Bxd6 Nxd6 13. cxd5 exd5 14. Nd3 Nf7 15. e3 Kg7 16. Rab1 b6 17. Nd2 Bb7 18. f4 g4 19. Ne5 Qe6 20. Rf2 h5 21. h4 Rac8 22. Re1 Nd6 23. Ref1 Nf6 24. Qb1 Rc7 25. Rc1 Rfc8 26. Rff1 Kh6 27. Rc2 Kg7 28. Rfc1 Nd7 29. b3 Nf6 30. Rc3 Nb5 31. Rd3 Nd6 32. Rdc3 Nb5 33. Rd3 Nd6 1/2-1/2

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.13"]
[Round "8"]
[White "Costin, Alexandru"]
[Black "Tadic, Stefan"]
[Result "1/2-1/2"]
[ECO "D07"]
[WhiteElo "1812"]
[BlackElo "2074"]
[PlyCount "78"]
[EventDate "2017.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. a3 Nge7 6. e3 Nf5 7. exd4 Nfxd4 8. Nxd4 Qxd4 9. Nc3 Qxd1+ 10. Nxd1 Nxe5 11. Bf4 Bd6 12. Bg3 f6 13. Nc3 Be6 14. Nb5 Ke7 15. Nxd6 cxd6 16. Be2 Nxc4 17. 0-0 Ne5 18. Rfe1 g5 19. f3 Rac8 20. Rac1 Rxc1 21. Rxc1 Rc8 22. Rxc8 Bxc8 23. Kf2 Be6 24. Ke3 Ng6 25. Bd3 f5 26. f4 g4 27. Be1 Bd7 28. g3 Ke6 29. Bc4+ d5 30. Bd3 Ne7 31. Bc3 Nc8 32. Be5 Ne7 33. Bc3 Ba4 34. Bd4 a6 35. b3 Bxb3 36. Bc5 Bd1 37. Kd2 Bf3 38. Kc3 Be4 39. Be2 Kd7 1/2-1/2

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.12"]
[Round "7"]
[White "Morgunov, Marc"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2199"]
[BlackElo "1812"]
[PlyCount "141"]
[EventDate "2017.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 e5 4. Ngf3 Bd6 5. d4 exd4 6. exd5 cxd5 7. Nxd4 Nc6 8. N2b3 Nf6 9. Be2 h6 10. 0-0 0-0 11. h3 Re8 12. c3 Bd7 13. Re1 a6 14. Be3 Ne4 15. Nf3 Be6 16. Nbd4 Nxd4 17. Nxd4 Bd7 18. Nc2 Be6 19. Nd4 Bd7 20. Bf1 Qc7 21. g3 Bxg3 22. fxg3 Qxg3+ 23. Bg2 Nxc3 24. Qf3 Qxf3 25. Bxf3 Ne4 26. h4 Rac8 27. Kh2 Nf6 28. Bf4 Rxe1 29. Rxe1 Rc4 30. Rd1 Bg4 31. Bxg4 Nxg4+ 32. Kg3 Nf6 33. Be3 h5 34. Rc1 Rxc1 35. Bxc1 Ne4+ 36. Kf4 f6 37. Ne6 Nd6 38. Nc7 d4 39. Ne6 d3 40. Nc5 b6 41. Nxd3 Kf7 42. Be3 b5 43. Nc5 a5 44. Bd2 a4 45. Bc3 Nc4 46. Na6 Nd6 47. Nc7 Kg6 48. Ne6 Nc4 49. Ke4 Nb6 50. Nc7 Kf7 51. Nxb5 g5 52. hxg5 fxg5 53. Bd4 Nc4 54. Kd3 Na5 55. Nc3 Nc6 56. Nxa4 Nb4+ 57. Kc4 Nxa2 58. Be3 Kg6 59. Kb3 Nc1+ 60. Bxc1 h4 61. Nc3 g4 62. Ne2 Kf5 63. Kc4 Ke4 64. b4 g3 65. Nxg3+ hxg3 66. Bb2 Kf3 67. Bd4 g2 68. b5 Kg4 69. b6 Kh3 70. b7 g1Q 71. Bxg1 1-0

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.11"]
[Round "6"]
[White "Costin, Alexandru"]
[Black "Fernandez Lopez, Ruben"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "1812"]
[BlackElo "2020"]
[PlyCount "64"]
[EventDate "2017.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Qa4+ Bd7 8. Qa3 b6 9. Nf3 c5 10. Be2 cxd4 11. cxd4 Nc6 12. Be3 0-0 13. 0-0 Bg4 14. e5 Rc8 15. Rfd1 Na5 16. Rac1 Qd5 17. h3 Be6 18. Qxe7 Qxa2 19. Bf1 Nc6 20. Qh4 Bd5 21. Ng5 h6 22. Ne4 Bxe4 23. Qxe4 Qa4 24. e6 Nxd4 25. exf7+ Kh7 26. Rxd4 Bxd4 27. Rxc8 Rxc8 28. Bxd4 Qd7 29. Bc4 Qf5 30. Qxf5 gxf5 31. Be6 Kg6 32. Bxc8 Kxf7 1-0

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.09"]
[Round "5"]
[White "Spizharny, Mikhail"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1972"]
[BlackElo "1812"]
[PlyCount "84"]
[EventDate "2017.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. c4 e6 6. Nc3 a6 7. Be3 Nd7 8. Rc1 Nh6 9. cxd5 cxd5 10. Nge2 Be7 11. Ng3 Bg4 12. Qb3 b5 13. f3 Nf5 14. Bf2 Nxg3 15. Bxg3 Bf5 16. Be2 Rc8 17. a4 b4 18. Na2 Rxc1+ 19. Nxc1 Qb6 20. Bf2 0-0 21. 0-0 Nb8 22. Bd3 Bxd3 23. Qxd3 Rc8 24. Ne2 g6 25. g4 Qd8 26. Nf4 Bxh4 27. Nxg6 Bxf2+ 28. Rxf2 Qg5 29. Rc2 Rxc2 30. Qxc2 Qxg6 31. Qc8+ Kg7 32. Qxb8 hxg4 33. Qd8 gxf3+ 34. Kf2 Qg2+ 35. Ke3 Qe2+ 36. Kf4 Qe4+ 37. Kg3 Qf5 38. Kf2 Qd3 39. Qf6+ Kg8 40. Qd8+ Kh7 41. Qf6 Qc2+ 42. Ke1 Qe2# 0-1

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.08"]
[Round "4"]
[White "Costin, Alexandru"]
[Black "Babazada, Khazar Araz"]
[Result "1/2-1/2"]
[ECO "E71"]
[WhiteElo "1812"]
[BlackElo "2122"]
[PlyCount "65"]
[EventDate "2017.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Bg5 h6 7. Be3 Nbd7 8. Bd3 e5 9. d5 c6 10. Nge2 cxd5 11. cxd5 Nc5 12. 0-0 Nxd3 13. Qxd3 Ne8 14. f4 f5 15. Qd2 g5 16. fxg5 f4 17. Nxf4 exf4 18. Bxf4 hxg5 19. Bxg5 Nf6 20. Rae1 Bd7 21. Re2 Qb6+ 22. Be3 Qb4 23. a3 Qc4 24. Bd4 Rf7 25. b3 Qxb3 26. Qg5 Raf8 27. Ref2 Nh7 28. Qg6 Qc4 29. Ne2 Re7 30. Qxd6 Qxe2 31. Bxg7 Rxf2 32. Rxf2 Qxe4 33. Bc3 1/2-1/2

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.07"]
[Round "3"]
[White "Melkonyan, Arshak"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2064"]
[BlackElo "1812"]
[PlyCount "86"]
[EventDate "2017.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 c6 3. c4 e6 4. Nbd2 Nf6 5. g3 Bd6 6. Bg2 0-0 7. 0-0 Nbd7 8. Qc2 b6 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Bb7 12. Qc2 Qc7 13. Ng5 Nf6 14. c5 Be7 15. Bf4 Qd7 16. Rfd1 h6 17. Nf3 Nh5 18. Ne5 Qc7 19. Ng6 Nxf4 20. Nxf8 Bxf8 21. gxf4 Qxf4 22. Rac1 b5 23. Qe4 Qxe4 24. Bxe4 a5 25. Kf1 Be7 26. Ke2 Bf6 27. f4 Rd8 28. Ke3 g6 29. Rc3 Kg7 30. Rb3 Be7 31. Rg1 Bf6 32. Rd3 Kh7 33. Rc1 Kh8 34. Rdc3 Kg7 35. Ra3 Ra8 36. Rb3 Rd8 37. Ra3 Kh7 38. Rxa5 Bxd4+ 39. Ke2 Bxc5 40. Rc3 Kg7 41. Rd3 Rxd3 42. Kxd3 f5 43. Bg2 Kf7 1/2-1/2

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.05"]
[Round "1"]
[White "Tuominen, Matias"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1398"]
[BlackElo "1812"]
[PlyCount "62"]
[EventDate "2017.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 f5 5. Nc3 Nf6 6. cxd5 cxd5 7. a3 Nc6 8. Bb5 Bd7 9. Bd2 Bd6 10. 0-0 0-0 11. Rc1 Qe8 12. Na4 Nxd4 13. Nxd4 Bxb5 14. Nxb5 Qxb5 15. b4 Ne4 16. Nc3 Nxc3 17. Bxc3 Rac8 18. f4 Rc4 19. Qd2 Rfc8 20. Rf3 Qc6 21. Bb2 Rxc1+ 22. Bxc1 Qxc1+ 23. Qxc1 Rxc1+ 24. Rf1 Rxf1+ 25. Kxf1 a5 26. bxa5 Bxa3 27. Ke2 Bb4 28. Kd1 Bxa5 29. Kc2 b5 30. Kb3 Bd2 31. g3 Bxe3 0-1

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.09"]
[Round "9"]
[White "Nedelcu, Teodor Cosmin"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "E24"]
[WhiteElo "1598"]
[BlackElo "1727"]
[PlyCount "146"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. Nf3 b6 7. Bg5 d6 8. e4 h6 9. Bxf6 Qxf6 10. Bd3 Bb7 11. Qe2 Nd7 12. Rb1 e5 13. Qe3 0-0 14. 0-0 cxd4 15. cxd4 exd4 16. Nxd4 Ne5 17. Nf5 Ba6 18. Qd4 g6 19. f4 gxf5 20. fxe5 dxe5 21. Qf2 f4 22. Qe2 Qg5 23. Kh1 Kh8 24. Rf2 Rad8 25. Rd1 Rd4 26. Qc2 Rfd8 27. Rff1 Qe7 28. Be2 Qc5 29. Rd3 Rxd3 30. Bxd3 Qxa3 31. Rf3 Qa1+ 32. Rf1 Qd4 33. Rf3 Rc8 34. Bf1 Bxc4 35. Rc3 b5 36. h3 Kh7 37. Qc1 Qxe4 38. Bd3 Bxd3 39. Rxc8 Bc4 40. Qd2 Qd3 41. Qb2 f3 42. Qf2 fxg2+ 43. Kxg2 Bd5+ 44. Kh2 Qe4 45. Qf1 a5 46. Rc5 Bc4 47. Qf2 Qf4+ 48. Qxf4 exf4 49. Rc6 a4 50. Ra6 Kg7 51. Kg2 Bd5+ 52. Kf2 f6 53. Ra5 Bc4 54. Kf3 Kf7 55. Ra6 Bf1 56. h4 h5 57. Kxf4 Ke7 58. Ke3 f5 59. Kf4 Kd7 60. Kg5 Kc7 61. Kxh5 Kb7 62. Ra5 Kb6 63. Ra8 Kc5 64. Kg5 Be2 65. h5 Bxh5 66. Kxh5 Kc4 67. Kg5 Kb3 68. Kxf5 a3 69. Ke4 b4 70. Kd3 Ka2 71. Kc4 Kb2 72. Kxb4 a2 73. Rxa2+ Kxa2 1/2-1/2

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.08"]
[Round "8"]
[White "Costin, Alexandru"]
[Black "Ferentiu, Raul Florin"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1727"]
[BlackElo "1518"]
[PlyCount "93"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 c5 3. b3 Nc6 4. Bb2 Nf6 5. e3 e6 6. Be2 Be7 7. 0-0 a6 8. Ne5 Bd7 9. d3 b5 10. Nd2 0-0 11. Qe1 Nb4 12. Qd1 Rc8 13. a3 Nc6 14. Qe1 Qb6 15. Qg3 Rfd8 16. Nxd7 Rxd7 17. Kh1 Ne8 18. f5 exf5 19. Rxf5 f6 20. Bg4 Rcc7 21. Rxd5 Rxd5 22. Be6+ Kh8 23. Bxd5 Nd6 24. Qh3 Qb8 25. Ne4 Nxe4 26. Bxe4 Qg8 27. Bxc6 Rxc6 28. Qd7 Re6 29. e4 Qf7 30. Rf1 Rd6 31. Qc8+ Qg8 32. Qxc5 Qe6 33. Qa7 Rc6 34. c4 bxc4 35. dxc4 h6 36. Qa8+ Kh7 37. e5 fxe5 38. Re1 Rd6 39. Qe4+ Kg8 40. Bxe5 Rb6 41. b4 Bxb4 42. axb4 Rxb4 43. Qd5 Qxd5 44. cxd5 g6 45. d6 Rb8 46. d7 Rd8 47. Rd1 1-0

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.07"]
[Round "7"]
[White "Vitan, Rares Mihai"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "1426"]
[BlackElo "1727"]
[PlyCount "123"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 e6 3. Bb2 c5 4. e3 b6 5. Be2 Bb7 6. 0-0 d6 7. c4 Be7 8. d3 Nbd7 9. Nbd2 0-0 10. Qc2 Qc7 11. Rac1 e5 12. d4 Rad8 13. d5 h6 14. Bd3 Bc8 15. Ne4 Nxe4 16. Bxe4 Nb8 17. Nd2 f5 18. Bd3 f4 19. h3 g5 20. Be2 Bf5 21. Bd3 Qd7 22. Bxf5 Qxf5 23. Qxf5 Rxf5 24. g4 Rf7 25. e4 Na6 26. a3 Nc7 27. a4 h5 28. Kg2 a6 29. Rh1 f3+ 30. Kg3 h4+ 31. Kh2 Rdf8 32. Rc3 Rf4 33. Re1 Rb8 34. Rd3 b5 35. axb5 axb5 36. Bxe5 dxe5 37. d6 Bxd6 38. Rxd6 bxc4 39. Rc6 c3 40. Nb1 c2 41. Nd2 Nb5 42. Rxc5 Nd4 43. Rc1 Re8 44. b4 Rf6 45. R1xc2 Nxc2 46. Rxc2 Rb6 47. Rc4 Rf8 48. Kg1 Rd6 49. Rc2 Rd3 50. Rb2 Kf7 51. Kf1 Rfd8 52. Ke1 Rc8 53. Kd1 Rdc3 54. Nb3 Rd3+ 55. Nd2 Rdc3 56. Nb3 R8c4 57. Kd2 Ke6 58. b5 Rc8 59. b6 R3c6 60. b7 Rb8 61. Na5 Ra6 62. Rb5 1/2-1/2

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.06"]
[Round "6"]
[White "Costin, Alexandru"]
[Black "Teodorescu, Luca Nicolae"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "1727"]
[BlackElo "1406"]
[PlyCount "39"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Bg5 Be7 5. e3 0-0 6. Nc3 b6 7. cxd5 exd5 8. Bd3 Nbd7 9. 0-0 Bb7 10. Ne5 h6 11. Bxf6 Bxf6 12. f4 Nxe5 13. dxe5 Be7 14. f5 Bg5 15. f6 Bxe3+ 16. Kh1 Bg5 17. h4 gxf6 18. hxg5 fxe5 19. Qh5 Kg7 20. Rf6 1-0

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.05"]
[Round "5"]
[White "Anghel, Iulian Mihai"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "1706"]
[BlackElo "1727"]
[PlyCount "67"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Be2 0-0 8. 0-0 dxc4 9. Bxc4 Bg4 10. Be3 Nbd7 11. h3 Bxf3 12. Qxf3 Rc8 13. Bb3 b6 14. Rfe1 e6 15. Rad1 a6 16. d5 e5 17. Bg5 h6 18. Bh4 Nc5 19. Rxe5 Nxb3 20. axb3 g5 21. Bg3 Nd7 22. Ree1 f5 23. Bd6 Rf7 24. Re6 Nc5 25. Bxc5 Rxc5 26. Rde1 Qd7 27. b4 Rc4 28. Rxb6 g4 29. Qe2 Bxc3 30. bxc3 Re4 31. Qd2 Rxe1+ 32. Qxe1 Qxd5 33. Rxh6 gxh3 34. Qe8+ 1-0

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.05"]
[Round "4"]
[White "Costin, Alexandru"]
[Black "Meriuta, George Cosmin"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1727"]
[BlackElo "1481"]
[PlyCount "137"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Bg5 Be7 5. e3 0-0 6. Nc3 Nbd7 7. cxd5 exd5 8. Bd3 c6 9. 0-0 h6 10. Bh4 Re8 11. Rc1 Nf8 12. Ne5 Ne6 13. f4 c5 14. f5 Nc7 15. Qf3 cxd4 16. exd4 Nd7 17. Bxe7 Qxe7 18. Ng4 Nf6 19. Ne5 Nd7 20. Rce1 Qd6 21. Ng4 Rxe1 22. Rxe1 b6 23. Rf1 Nf6 24. Nxf6+ Qxf6 25. Qf4 Qd8 26. f6 Qxf6 27. Qxc7 Qxd4+ 28. Kh1 Qxd3 29. Qxf7+ Kh7 30. Rd1 Qf5 31. Qxf5+ Bxf5 32. Rxd5 Re8 33. h3 Re1+ 34. Kh2 Be6 35. Rd6 Bc4 36. b3 Be6 37. Rd2 Rc1 38. Nb5 a6 39. Nd4 Bf7 40. Nf5 Bg6 41. Nd6 Rc2 42. Rxc2 Bxc2 43. Kg3 Kg6 44. Kf4 Bd3 45. g4 a5 46. h4 b5 47. Nb7 a4 48. bxa4 bxa4 49. Nc5 Bc2 50. a3 h5 51. g5 Kf7 52. Ke5 g6 53. Kd4 Ke7 54. Kc3 Bd1 55. Kd2 Bf3 56. Nxa4 Ke6 57. Nc5+ Kf5 58. Nd3 Be4 59. Nf2 Bc6 60. Ke3 Ke5 61. Nd3+ Kf5 62. Nf4 Be8 63. Nd5 Bf7 64. Nf6 Bb3 65. Kf3 Bd1+ 66. Ke3 Bb3 67. Kf3 Bd1+ 68. Kg3 Bb3 69. Nd7 1-0

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.04"]
[Round "3"]
[White "Bantescu, Dan"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "A62"]
[WhiteElo "1366"]
[BlackElo "1727"]
[PlyCount "68"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 a6 7. a4 g6 8. g3 Bg7 9. Bg2 0-0 10. 0-0 Re8 11. Re1 Qc7 12. e4 Bg4 13. Qc2 Bxf3 14. Bxf3 Nbd7 15. Bg2 c4 16. Bf1 Ne5 17. Qd1 Rab8 18. a5 b5 19. axb6 Rxb6 20. Na4 Rb3 21. Bf4 Nf3+ 22. Kh1 Nxe1 23. Qxe1 Rxe4 24. Qd1 Nh5 25. Bd2 Bxb2 26. Nxb2 Rxb2 27. Rxa6 Qb7 28. Rxd6 Qb8 29. Rc6 Rd4 30. Qf3 Rdxd2 31. d6 Rxd6 32. Rxc4 Qb7 33. Re4 Re6 34. Bg2 Rb1+ 0-1

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.03"]
[Round "2"]
[White "Costin, Alexandru"]
[Black "Mihalcescu, Alexandru"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "1727"]
[BlackElo "1498"]
[PlyCount "94"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 Be7 6. d3 0-0 7. Nc3 c5 8. Qc2 Nc6 9. e4 Nb4 10. Qe2 d5 11. e5 Ne8 12. a3 Na6 13. Ne1 Nec7 14. f4 g6 15. g4 f6 16. f5 fxe5 17. fxe6 Qd6 18. Nc2 Rxf1+ 19. Qxf1 Rf8 20. Qe2 Rb8 21. Bd2 Qxe6 22. Re1 Bf6 23. Rf1 Bg7 24. cxd5 Nxd5 25. Ne4 Nf6 26. Nxf6+ Bxf6 27. Bxb7 Rxb7 28. Qf3 Rf7 29. Bh6 Bd8 30. Qxf7+ Qxf7 31. Rxf7 Kxf7 32. Bd2 Ke6 33. Kg2 Bf6 34. Kf3 Nc7 35. g5 Bg7 36. Ke4 Ne8 37. h3 Nd6+ 38. Kf3 e4+ 39. dxe4 Bxb2 40. a4 Nc4 41. Bf4 Be5 42. Bc1 a6 43. Na3 Nxa3 44. Bxa3 Bd4 45. Kf4 b5 46. axb5 axb5 47. Bc1 b4 0-1

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.02"]
[Round "1"]
[White "Radu, Luca Ioan"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "E30"]
[WhiteElo "1304"]
[BlackElo "1727"]
[PlyCount "129"]
[EventDate "2017.02.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 Be7 5. Nf3 d5 6. cxd5 exd5 7. e3 c6 8. Bd3 Bg4 9. 0-0 0-0 10. a3 Nbd7 11. b4 a6 12. Rb1 Ne4 13. Bxe7 Qxe7 14. Qc2 Nxc3 15. Qxc3 Qf6 16. Qc2 Bxf3 17. gxf3 Qxf3 18. Bxh7+ Kh8 19. Qf5 Qxf5 20. Bxf5 Nf6 21. a4 g6 22. Bd3 Rfc8 23. Rfc1 Nd7 24. b5 axb5 25. axb5 c5 26. dxc5 Nxc5 27. Be2 Ne4 28. Bd3 Nc5 29. Ra1 Rxa1 30. Rxa1 Rc7 31. Kg2 Kg7 32. Kf3 Kf6 33. Kf4 g5+ 34. Kg4 Ne4 35. Bxe4 dxe4 36. Ra5 Rc5 37. Ra4 Kg6 38. Rb4 f5+ 39. Kg3 Rc3 40. Kg2 Kh5 41. Rd4 Rc5 42. Rb4 b6 43. Kg3 Rc3 44. Kg2 Kh4 45. Rd4 Rc5 46. Rd6 f4 47. Rh6+ Kg4 48. h3+ Kf5 49. Rxb6 f3+ 50. Kg3 Rc1 51. Kh2 Rf1 52. Rc6 Rxf2+ 53. Kg1 Rg2+ 54. Kf1 Ke5 55. b6 Kd5 56. Rc7 Rb2 57. b7 Rb1+ 58. Kf2 Kd6 59. Rg7 Kc6 60. Rxg5 Rxb7 61. h4 Kd6 62. Rg6+ Kd5 63. Rg5+ Kc4 64. Rg1 Kd3 65. h5 0-1

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.25"]
[Round "9"]
[White "Vasilescu, Rares Cristian"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1445"]
[BlackElo "1681"]
[PlyCount "92"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bg4 3. e3 Nf6 4. Be2 e6 5. 0-0 c5 6. b3 Nc6 7. Bb2 Bd6 8. Ne5 Bxe2 9. Qxe2 0-0 10. f4 cxd4 11. exd4 Qb6 12. Qe3 Bxe5 13. fxe5 Ng4 14. Qf4 Ngxe5 15. Kh1 Ng6 16. Qf2 f6 17. Nd2 e5 18. dxe5 Qxf2 19. Rxf2 fxe5 20. Raf1 Rxf2 21. Rxf2 Rf8 22. Rxf8+ Kxf8 23. a3 Kf7 24. g3 Ke6 25. Kg2 Kf5 26. Nf3 a6 27. Kf2 e4 28. Nd4+ Nxd4 29. Bxd4 Ne5 30. h3 g6 31. g4+ Ke6 32. Ke3 Nf3 33. Bc3 g5 34. Kf2 d4 35. Bb2 Kd5 36. Bc1 h6 37. Bb2 Nh4 38. c3 e3+ 39. Ke2 dxc3 40. Bxc3 Ke4 41. Bg7 Ng2 42. Bxh6 Nf4+ 43. Ke1 Kf3 44. Bxg5 Nd3+ 45. Kd1 e2+ 46. Kd2 e1Q+ 0-1

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.24"]
[Round "8"]
[White "Costin, Alexandru"]
[Black "Neacsa, Andreas Alexandru"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "1681"]
[BlackElo "1383"]
[PlyCount "55"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 b6 5. Bg2 Bb7 6. Ne5 Nbd7 7. f4 c5 8. e3 Rc8 9. 0-0 Be7 10. Nc3 0-0 11. Bd2 Re8 12. f5 Rf8 13. Rc1 Bd6 14. Ng4 cxd4 15. exd4 Rxc4 16. Nb5 Rxc1 17. Qxc1 Nxg4 18. Nxd6 Ba6 19. Rf4 Ngf6 20. Bb4 Nb8 21. fxe6 fxe6 22. Qe1 Qd7 23. Bh3 Qc6 24. Qxe6+ Kh8 25. Nf7+ Rxf7 26. Qxf7 Ng8 27. Qxg8+ Kxg8 28. Rf8# 1-0

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.23"]
[Round "7"]
[White "Padurariu, Mihai Edward"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "1878"]
[BlackElo "1681"]
[PlyCount "79"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 Be7 7. Nc3 Na6 8. a3 0-0 9. Bd3 Bf6 10. Nge2 Bg4 11. 0-0 Re8 12. Qd2 Qe7 13. Ng3 Be6 14. b3 c5 15. d5 Bd7 16. Rab1 Rac8 17. Nge4 Be5 18. Ng3 f5 19. Rbe1 Qf6 20. Nce2 Bxg3 21. fxg3 Rf8 22. g4 Qg6 23. h3 h5 24. Nf4 Qh7 25. gxh5 Rf6 26. Qe2 Be8 27. Bd2 Bf7 28. Qf3 Nd7 29. Bc3 Rh6 30. Ng6 Ra8 31. Bxf5 Bxg6 32. Bxg6 Rxg6 33. hxg6 Qxg6 34. Qg4 Qxg4 35. hxg4 Nf6 36. g5 Nh5 37. g4 Ng3 38. Rf3 Rf8 39. Rxg3 Rf7 40. g6 1-0

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.22"]
[Round "6"]
[White "Grigor, Mihai"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1334"]
[BlackElo "1681"]
[PlyCount "63"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. g3 Bf5 5. Bg2 Nf6 6. Nf3 e6 7. Nc3 Nc6 8. 0-0 Bd6 9. Bg5 h6 10. Bxf6 Qxf6 11. Qd2 h5 12. h4 Bg4 13. Qe3 Bxf3 14. Qxf3 Qxf3 15. Bxf3 Nxd4 16. Bd1 f6 17. Ne2 Nf3+ 18. Kg2 Nd2 19. Re1 Kd7 20. Nd4 e5 21. Nf3 Nxf3 22. Bxf3 e4 23. Be2 a6 24. Rad1 Kc6 25. c4 dxc4 26. Bxc4 b5 27. Rd2 Bb4 28. Red1 Bxd2 29. Rxd2 Rad8 30. Re2 Rh6 31. Rc2 Kb6 32. Be2 0-1

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.21"]
[Round "5"]
[White "Costin, Alexandru"]
[Black "Saulescu, Ioan Alexandru"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1681"]
[BlackElo "1327"]
[PlyCount "90"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 d5 2. e3 c6 3. b3 e6 4. Bb2 f5 5. Nf3 Nf6 6. Nbd2 Bd6 7. Ne5 Qe7 8. a4 Ne4 9. Nxe4 Bxe5 10. dxe5 fxe4 11. Qd4 Nd7 12. Be2 0-0 13. f4 Qh4+ 14. g3 Qh3 15. 0-0-0 Qf5 16. g4 Qf7 17. h4 c5 18. Qd2 Nb6 19. Ba3 Qc7 20. h5 Rf7 21. g5 Rf8 22. Qa5 Re8 23. Bxc5 Bd7 24. Bd6 Qc6 25. Bb5 Qc8 26. Rdf1 Qd8 27. Be2 Qc8 28. Bg4 Rd8 29. Qd2 Re8 30. a5 Rd8 31. axb6 axb6 32. Kb2 Re8 33. Ra1 Rxa1 34. Rxa1 Qc6 35. Rf1 Qc8 36. Qf2 Bb5 37. Be2 Bd7 38. Qh4 Qd8 39. Bg4 Qc8 40. Qh3 Qc6 41. f5 Rc8 42. Rf2 Qc3+ 43. Ka2 Ra8+ 44. Ba3 Qb4 45. Kb2 Qxa3+ 1/2-1/2

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.21"]
[Round "4"]
[White "Musteata, Darius Gabriel Orla"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1447"]
[BlackElo "1681"]
[PlyCount "163"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 d6 6. h3 Nbd7 7. 0-0 Re8 8. c3 b6 9. Nbd2 Bb7 10. Qc2 Rc8 11. Rac1 c5 12. Qb1 e5 13. dxe5 dxe5 14. Bh2 Qe7 15. Rfd1 Red8 16. Nc4 e4 17. Nfe5 Nxe5 18. Nxe5 Nd5 19. Nc4 Ba8 20. Nd6 Rc7 21. Nxe4 Rcd7 22. Ng3 Bc6 23. Bf3 Ba4 24. Rd2 Nc7 25. Rxd7 Bxd7 26. Rd1 Be6 27. a3 Bb3 28. Rxd8+ Qxd8 29. Ne4 Nb5 30. Qc1 Qd3 31. Qa1 f5 32. Ng3 Nd6 33. Qc1 Nf7 34. Be2 Qd7 35. Nf1 Bd5 36. Nd2 Ne5 37. Qc2 Qc6 38. Bxe5 Bxe5 39. Bf3 Kf7 40. Qb3 Bxb3 41. Bxc6 Be6 42. Kf1 Ke7 43. Ke2 Kd6 44. Bf3 a5 45. Kd3 b5 46. b3 Bxb3 47. Nxb3 c4+ 48. Kc2 cxb3+ 49. Kxb3 Kc5 50. Be2 Bf6 51. g4 fxg4 52. hxg4 g5 53. f4 gxf4 54. exf4 h6 55. Bd3 Bh4 56. Be2 Bf6 57. Kc2 Be7 58. Kd2 Kd5 59. Ke3 Bxa3 60. Bxb5 Be7 61. c4+ Ke6 62. Kd4 Kd6 63. c5+ Ke6 64. c6 Bd6 65. Ke4 Bc7 66. Bc4+ Kf6 67. Bb5 Ke6 68. f5+ Kd6 69. Kd4 Bd8 70. Ba4 Bf6+ 71. Kc4 Kc7 72. Kd5 Be7 73. Ke6 Bf8 74. Kf7 Bb4 75. Kg7 Bc3+ 76. Kxh6 Kd6 77. Kg6 Ke7 78. g5 Be5 79. f6+ Kd8 80. Kf7 Kc7 81. g6 Bxf6 82. Kxf6 1-0

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.20"]
[Round "3"]
[White "Costin, Alexandru"]
[Black "Ognean, Mihnea Ionut"]
[Result "0-1"]
[ECO "A73"]
[WhiteElo "1681"]
[BlackElo "2059"]
[PlyCount "120"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 0-0 9. 0-0 Qe7 10. Bg5 h6 11. Bxf6 Bxf6 12. Qc2 Nd7 13. Kh1 Re8 14. Nd2 a6 15. a4 Rb8 16. a5 Bg7 17. Bg4 Ne5 18. Bxc8 Rbxc8 19. f4 Ng4 20. Rae1 Nxh2 21. g3 Nxf1 22. Rxf1 h5 23. Kg2 Rb8 24. Re1 h4 25. g4 f5 26. g5 Qd7 27. Qd1 b5 28. axb6 Rxb6 29. Nc4 Rb4 30. Qd3 Kh8 31. Rh1 fxe4 32. Rxh4+ Kg8 33. Nxe4 Qe7 34. Nexd6 Qe2+ 35. Qxe2 Rxe2+ 36. Kf3 Rc2 37. Rh1 Rcxc4 38. Nxc4 Rxc4 39. Ra1 Bxb2 40. Rxa6 Kf7 41. Ra7+ Ke8 42. Ra6 Bc1 43. Rxg6 Rxf4+ 44. Ke2 Rf5 45. Kd3 Rxg5 46. Rc6 Ba3 47. Ra6 Bb4 48. Kc4 Kd7 49. Rh6 Rg4+ 50. Kb5 Rd4 51. Rh7+ Kd6 52. Rh6+ Kxd5 53. Rh8 Ke4 54. Rh4+ Kd3 55. Rh3+ Kc2 56. Rh2+ Kc3 57. Rh3+ Rd3 58. Rh4 Kb3 59. Rh1 Rg3 60. Rb1+ Kc2 0-1

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.19"]
[Round "2"]
[White "Dobrescu, Cezar Constantin"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1386"]
[BlackElo "1681"]
[PlyCount "54"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. d4 Bg4 6. Be2 c6 7. Bf4 Nbd7 8. h3 Bh5 9. Ne5 Bxe2 10. Qxe2 Nxe5 11. dxe5 Nd5 12. Bd2 Qb6 13. 0-0 e6 14. Nxd5 cxd5 15. c4 dxc4 16. Qxc4 Be7 17. Be3 Qa5 18. f4 0-0 19. a3 Rac8 20. Qe4 Qa6 21. Rac1 Qe2 22. Rxc8 Rxc8 23. Rf2 Qe1+ 24. Kh2 Bh4 25. Qxb7 Rd8 26. Rf3 h6 27. Qc7 Rd1 0-1

[Event "ROM-ch U12"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.18"]
[Round "1"]
[White "Costin, Alexandru"]
[Black "Popescu, Alin"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1681"]
[BlackElo "1192"]
[PlyCount "51"]
[EventDate "2016.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. c4 e6 4. Nc3 Nf6 5. Bg5 h6 6. Bxf6 Qxf6 7. cxd5 exd5 8. Nxd5 Qd6 9. Nc3 Bg4 10. e3 0-0-0 11. Be2 Bxf3 12. Bxf3 g6 13. Qd2 Bg7 14. Nb5 Qe6 15. Qe2 a6 16. d5 Qe5 17. dxc6 Qxb5 18. Qxb5 axb5 19. cxb7+ Kb8 20. Rb1 Rhe8 21. 0-0 Rd6 22. Rfc1 Ree6 23. Rc2 c6 24. Rbc1 Kxb7 25. Rc5 Bxb2 26. Rxb5+ 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.06"]
[Round "9"]
[White "Nedelcu, Teodor Cosmin"]
[Black "Costin, Alexandru"]
[Result "1/2-1/2"]
[ECO "A65"]
[WhiteElo "1491"]
[BlackElo "1496"]
[PlyCount "116"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. h3 g6 7. e4 Bg7 8. Bd3 a6 9. a4 0-0 10. Nge2 Re8 11. Ng3 Nbd7 12. 0-0 Ne5 13. Bc2 Bd7 14. f4 Nc4 15. Qf3 Rf8 16. Qe2 Nb6 17. f5 Ne8 18. a5 Bd4+ 19. Kh1 Nc8 20. Qf3 Bg7 21. Bd2 Na7 22. Ba4 Bxa4 23. Nxa4 Nc8 24. Qg4 Nf6 25. Qh4 Nh5 26. Qg4 Nxg3+ 27. Qxg3 Be5 28. Qb3 Rb8 29. Bc3 Bxc3 30. Nxc3 b5 31. f6 Re8 32. Qc2 Re5 33. Rf2 Qe8 34. Re1 b4 35. Nb1 Rxd5 36. Qc4 Re5 37. Qxa6 Rxe4 38. Rxe4 Qxe4 39. Re2 Qxb1+ 40. Kh2 h5 41. Qc6 Qf5 42. Qe8+ Kh7 43. Qxf7+ Kh6 44. g3 Qf1 45. Rg2 Kg5 46. Qe8 Rb7 47. Qe3+ Kxf6 48. Rf2+ Qxf2+ 49. Qxf2+ Kg7 50. a6 Ra7 51. Qe2 Re7 52. Qb5 Na7 53. Qd3 Rd7 54. h4 d5 55. b3 d4 56. Kh3 Rd6 57. Qe2 Rd7 58. Qe6 Rf7 1/2-1/2

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.05"]
[Round "8"]
[White "Costin, Alexandru"]
[Black "Tablan, Andrei Damian"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1496"]
[BlackElo "1194"]
[PlyCount "61"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Be7 5. Bg5 Bd7 6. Bxf6 Bxf6 7. cxd5 exd5 8. Nxd5 Bc6 9. Nxf6+ Qxf6 10. e3 0-0 11. Be2 Nd7 12. d5 Qxb2 13. dxc6 bxc6 14. 0-0 Rfd8 15. Re1 Nf6 16. Qc1 Qb4 17. Qxc6 Qa5 18. Red1 Nd5 19. Rac1 g6 20. Rc5 Qxa2 21. Rcxd5 Rdb8 22. Bc4 Qa3 23. Qxc7 Qf8 24. Ng5 Rc8 25. Qf4 h6 26. Nxf7 Rxc4 27. Qxc4 Qxf7 28. Rd8+ Rxd8 29. Rxd8+ Kg7 30. Qxf7+ Kxf7 31. Rd7+ 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.04"]
[Round "7"]
[White "Popescu, Sergiu Traian"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "1177"]
[BlackElo "1496"]
[PlyCount "108"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 e6 3. Nc3 c5 4. Nf3 d5 5. e3 Nc6 6. Be2 Bd6 7. a3 cxd4 8. Nxd4 Nxd4 9. Qxd4 e5 10. Qd1 dxc4 11. Bxc4 0-0 12. 0-0 e4 13. Qc2 Re8 14. Rd1 a6 15. Qb3 Rf8 16. Qc2 h6 17. Nxe4 Nxe4 18. Qxe4 Bxh2+ 19. Kxh2 Qxd1 20. Bd3 Qh5+ 21. Kg1 g6 22. Bd2 Bf5 23. Qc4 Rac8 24. Qb3 Bxd3 25. Qxd3 Rfd8 26. Qb3 Rxd2 27. Qxb7 Rd1+ 28. Rxd1 Qxd1+ 29. Kh2 Qh5+ 30. Kg3 Rc5 31. f4 g5 32. Qb8+ Kg7 33. Qd6 Qh4+ 34. Kf3 g4+ 35. Ke2 Qh5 36. Qd4+ Kg6 37. Qd6+ Kh7 38. Qd3+ Qg6 39. e4 Qf6 40. e5+ Qg6 41. Qd4 Qc2+ 42. Qd2 Qxd2+ 43. Kxd2 Rc4 44. f5 Re4 45. e6 fxe6 46. fxe6 Rxe6 47. b4 h5 48. a4 h4 49. b5 axb5 50. axb5 h3 51. gxh3 gxh3 52. Kc3 h2 53. Kc4 h1Q 54. Kc5 Qh5+ 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.03"]
[Round "6"]
[White "Costin, Alexandru"]
[Black "Cojocaru, Mihai Marian"]
[Result "1-0"]
[ECO "D56"]
[WhiteElo "1496"]
[BlackElo "1117"]
[PlyCount "110"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. c4 e6 4. Nc3 Nf6 5. Bg5 Be7 6. e3 0-0 7. Bd3 h6 8. Bh4 b6 9. cxd5 exd5 10. Bb5 Bb7 11. Qa4 Qd7 12. Ne5 Qf5 13. Nxc6 Bd6 14. 0-0 Ng4 15. Bg3 Qh5 16. Bxd6 cxd6 17. h3 Nf6 18. Ne2 a6 19. Bd3 b5 20. Qc2 Rfe8 21. Ng3 Qh4 22. Nf5 Qh5 23. Nxd6 Bxc6 24. Qxc6 Red8 25. Rac1 Ne8 26. Nb7 Rdb8 27. Nd6 Nxd6 28. Qxd6 Rd8 29. Qc6 g6 30. Qf6 Rf8 31. Kh2 Qg5 32. Qxg5 hxg5 33. Rc5 Rad8 34. Rc6 Ra8 35. Bxg6 fxg6 36. Rxg6+ Kh7 37. Rxg5 Rfd8 38. f4 Kh6 39. Rf3 Rg8 40. Rfg3 Rxg5 41. Rxg5 Re8 42. Rxd5 Rxe3 43. Rd6+ Kg7 44. Rxa6 Re4 45. Rb6 Rxd4 46. Rxb5 Rxf4 47. g4 Rf2+ 48. Kg3 Rd2 49. a4 Rd3+ 50. Kh4 Rd6 51. a5 Rh6+ 52. Rh5 Ra6 53. b4 Kf7 54. Rh7+ Kg8 55. Rb7 Ra8 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.02"]
[Round "4"]
[White "Costin, Alexandru"]
[Black "Stanciu, Andrei Teodor"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "1496"]
[BlackElo "1138"]
[PlyCount "97"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. c4 c6 4. Nc3 Bf5 5. Nh4 Bc8 6. e3 e6 7. Bd3 Nbd7 8. Nf3 Bd6 9. 0-0 0-0 10. Bd2 c5 11. Rc1 Nb6 12. cxd5 cxd4 13. exd4 exd5 14. Re1 Bd7 15. Qc2 Rc8 16. Bg5 g6 17. Bh6 Re8 18. Rxe8+ Qxe8 19. Re1 Qd8 20. Qb1 Qc7 21. Ne5 Re8 22. Nxd7 Bxh2+ 23. Kh1 Nbxd7 24. Rxe8+ Nxe8 25. Nxd5 Qd6 26. Qe1 Nef6 27. Nxf6+ Nxf6 28. Qc3 Qc7 29. Qxc7 Bxc7 30. Bg5 Kg7 31. Kg1 Bb6 32. Be3 Ng4 33. Be4 f5 34. Bxb7 f4 35. Bd2 Bxd4 36. Bc3 Bxc3 37. bxc3 Ne5 38. Bd5 Kf6 39. c4 Nd3 40. a3 Ke5 41. Kf1 Kd4 42. Bg8 h6 43. Ke2 Ne5 44. Kd2 Nxc4+ 45. Bxc4 Kxc4 46. Kc2 g5 47. a4 Kb4 48. Kb2 Kxa4 49. Kc3 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.02"]
[Round "5"]
[White "Lup, Cosmin Roland"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1078"]
[BlackElo "1496"]
[PlyCount "52"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 e6 5. Bg5 Be7 6. e4 exd5 7. exd5 Nxd5 8. Bd2 Nxc3 9. Bxc3 0-0 10. Nf3 Bg4 11. g3 Re8 12. Be2 Bf6 13. 0-0 Bxc3 14. bxc3 Nc6 15. Kg2 Qd7 16. Re1 Bh3+ 17. Kg1 Re7 18. Rb1 Rae8 19. Rb2 Qf5 20. Nh4 Qe4 21. Rb1 g5 22. Nf3 Ne5 23. Kh1 Nxf3 24. Bxf3 Qxe1+ 25. Qxe1 Rxe1+ 26. Rxe1 Rxe1# 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.01"]
[Round "3"]
[White "Voicu, Teodor Mihnea"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1309"]
[BlackElo "1496"]
[PlyCount "153"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. e4 c6 2. d4 d6 3. Nc3 Qc7 4. Bf4 e5 5. dxe5 dxe5 6. Bg3 Nf6 7. Nf3 Bd6 8. Bd3 Bg4 9. 0-0 Nbd7 10. h3 Bh5 11. Re1 0-0 12. Be2 Rad8 13. Nh2 Bg6 14. Bf3 Bb4 15. Re2 Nc5 16. Qe1 Rfe8 17. a3 Bxc3 18. Qxc3 Ncxe4 19. Bxe4 Nxe4 20. Qe1 Nxg3 21. fxg3 Qb6+ 22. Kf1 e4 23. Qb4 Qc7 24. Qb3 Re6 25. Rae1 Rf6+ 26. Kg1 Qd7 27. Ng4 Re6 28. Ne3 Qc7 29. Ng4 Rde8 30. Nh2 Bh5 31. g4 Bg6 32. Nf1 b5 33. Qg3 Qb6+ 34. Qe3 Qxe3+ 35. Nxe3 h6 36. h4 Bh7 37. Rd1 g5 38. h5 R8e7 39. Red2 Kg7 40. Rd4 Kf6 41. Rf1+ Kg7 42. Rfd1 Kf8 43. Rd8+ Re8 44. R1d7 Rxd8 45. Rxd8+ Re8 46. Rd6 Re6 47. Rd8+ Kg7 48. b4 Re7 49. Rc8 a5 50. Rxc6 axb4 51. axb4 Re5 52. Rc5 Rxc5 53. bxc5 f6 54. Nd5 Bg8 55. Nc3 b4 56. Nxe4 Bh7 57. Nd2 Bxc2 58. Kf2 Kf7 59. Ke3 b3 60. Nc4 Bd1 61. Kd4 Bxg4 62. Kd3 Be6 63. Nd2 Bf5+ 64. Kc3 Bc2 65. Nxb3 Bd1 66. Nd4 Bxh5 67. Nf5 Ke6 68. Ng7+ Kd5 69. Nxh5 f5 70. Kb4 Kc6 71. Kc4 f4 72. Kd4 Kc7 73. Kd5 Kd7 74. Nf6+ Kc7 75. c6 h5 76. Nxh5 g4 77. Nxf4 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.03.31"]
[Round "2"]
[White "Costin, Alexandru"]
[Black "Baciu, Daniel"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1496"]
[BlackElo "1366"]
[PlyCount "66"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 Nf6 5. Bg5 Be7 6. e3 h6 7. Bh4 0-0 8. Be2 Nbd7 9. 0-0 c6 10. cxd5 cxd5 11. Rc1 Rc8 12. Qb3 b6 13. Ba6 Rc7 14. Bg3 Rc6 15. Nxd5 Rxc1 16. Nxe7+ Qxe7 17. Rxc1 Ne4 18. Rc4 Nxg3 19. hxg3 Qd6 20. Qc3 Nf6 21. Nd2 Nd5 22. Rc6 Qd7 23. Qc4 Bd3 24. Bc8 Bxc4 25. Bxd7 Bb5 26. Rd6 Rd8 27. Bxb5 Rxd6 28. Nc4 Rd8 29. Ne5 Rc8 30. e4 Rc1+ 31. Kh2 Nf6 32. Bd3 Kf8 33. Nf3 Ng4+ 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.03.30"]
[Round "1"]
[White "Marcu, Tudor Alexandru"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1119"]
[BlackElo "1496"]
[PlyCount "81"]
[EventDate "2015.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 165 Extra"]
[Source "ChessBase"]
[SourceDate "2015.04.21"]
[SourceVersion "1"]
[SourceVersionDate "2015.04.21"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Nc3 e6 4. Bc4 Bb4 5. Bd2 Nf6 6. Qe2 Bxc3 7. Bxc3 Nxe4 8. Bb4 c5 9. dxc5 bxc5 10. Ba3 Qa5+ 11. Kd1 Qxa3 12. bxa3 Nc3+ 13. Kc1 Nxe2+ 14. Nxe2 d5 15. Bb5+ Bc6 16. Bxc6+ Nxc6 17. Rb1 Rb8 18. Rxb8+ Nxb8 19. Kd2 Nc6 20. Rb1 Kd8 21. Rb7 Rf8 22. Rb5 c4 23. Ke3 Kc7 24. Nd4 Nxd4 25. Kxd4 Rb8 26. Rxb8 Kxb8 27. c3 Kc7 28. Kc5 Kd7 29. a4 g5 30. Kd4 Kd6 31. g4 e5+ 32. Ke3 Kc5 33. Kd2 d4 34. cxd4+ exd4 35. Kc2 d3+ 36. Kc3 Kd5 37. a3 Ke4 38. Kd2 Kd4 39. Kd1 c3 40. Kc1 d2+ 41. Kc2 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2014.04.13"]
[Round "9"]
[White "Hududui, Stefan"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1199"]
[BlackElo "1062"]
[PlyCount "99"]
[EventDate "2014.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. e4 b6 2. Nf3 Bb7 3. Nc3 Nf6 4. d3 e6 5. Be3 Bb4 6. Bd2 0-0 7. Be2 Nc6 8. a3 Bc5 9. Qc1 Rc8 10. Be3 Bd6 11. Nb5 Be7 12. Nbd4 Nxd4 13. Nxd4 c5 14. Nf3 Qc7 15. Bf4 Bd6 16. Bxd6 Qxd6 17. e5 Qe7 18. exf6 Qxf6 19. h3 Rfe8 20. 0-0 Bd5 21. c3 e5 22. Qg5 Bxf3 23. Qxf6 gxf6 24. Bxf3 Kh8 25. Bg4 Rcd8 26. b4 Rg8 27. bxc5 bxc5 28. Rab1 Rg7 29. Rb7 a5 30. Ra7 Rdg8 31. Rxa5 d6 32. Ra6 d5 33. Rxf6 Ra8 34. Ra1 Ra7 35. Rc6 Ra5 36. a4 Rg8 37. Bd1 Rg7 38. Rb1 Ra8 39. Rxc5 Rag8 40. g3 e4 41. dxe4 dxe4 42. Re5 Ra8 43. Rxe4 Rgg8 44. c4 Rae8 45. Bf3 Rxe4 46. Bxe4 Re8 47. Bd5 f6 48. a5 Re7 49. a6 Kg7 50. Rb7 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2014.04.12"]
[Round "8"]
[White "Costin, Alexandru"]
[Black "Dinu, Stefan"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1062"]
[BlackElo "1001"]
[PlyCount "57"]
[EventDate "2014.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bd7 5. Bf4 c5 6. e3 Ne4 7. Nxe4 dxe4 8. Ne5 g6 9. Nxd7 Nxd7 10. Bg3 Bg7 11. Be2 Nb6 12. 0-0 cxd4 13. exd4 Qxd4 14. Qxd4 Bxd4 15. Rab1 0-0-0 16. b4 Na4 17. Rfc1 Bc3 18. Rd1 Rxd1+ 19. Bxd1 Nb2 20. a3 f5 21. Bd6 Nxd1 22. Rxd1 b6 23. c5 bxc5 24. bxc5 Kb7 25. Rc1 Bb2 26. Rb1 Rd8 27. Rxb2+ Ka6 28. g3 Ka5 29. Bc7+ 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2014.04.11"]
[Round "7"]
[White "Meriuta, George Cosmin"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "1242"]
[BlackElo "1062"]
[PlyCount "67"]
[EventDate "2014.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 d6 5. Nc3 Bd7 6. Nge2 Be7 7. 0-0 0-0 8. d4 e4 9. a3 a6 10. Bxc6 Bxc6 11. Nf4 Qd7 12. a4 Kh8 13. d5 Nxd5 14. Nfxd5 Bxd5 15. Qxd5 Qc6 16. Qxc6 bxc6 17. Nxe4 d5 18. Ng3 f6 19. Rfd1 g5 20. Rac1 Rg8 21. c4 Rg6 22. cxd5 cxd5 23. Rxc7 Bd6 24. Rc6 Bxg3 25. hxg3 Rh6 26. Rxf6 Rxf6 27. Bxf6+ Kg8 28. Bxg5 Kg7 29. Rxd5 Rb8 30. Rd6 Rxb3 31. Rxa6 Rb1+ 32. Kh2 Rb2 33. f3 Rb3 34. a5 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2014.04.09"]
[Round "4"]
[White "Constandache, Vlad Ciprian"]
[Black "Costin, Alexandru"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1253"]
[BlackElo "1062"]
[PlyCount "64"]
[EventDate "2014.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 c5 4. Nf3 Nf6 5. e5 Ne4 6. Nxe4 dxe4 7. Ng5 Qxd4 8. Qxd4 cxd4 9. Nxe4 Nd7 10. f4 Nb6 11. Ng3 Na4 12. Bb5+ Bd7 13. Bxd7+ Kxd7 14. 0-0 Bc5 15. Kh1 Nb6 16. f5 Rhf8 17. Ne4 Bb4 18. a3 Be7 19. f6 gxf6 20. Nxf6+ Bxf6 21. Rxf6 Ke7 22. Bg5 Rg8 23. Bh4 Kd7 24. Rxf7+ Kc6 25. Rxh7 Rg4 26. Bf6 Rag8 27. g3 Nc4 28. b3 Ne3 29. Rc1 Nf5 30. c4 dxc3 31. Rxc3+ Kb6 32. Kg2 Ng7 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2014.04.09"]
[Round "5"]
[White "Costin, Alexandru"]
[Black "Grigor, Mihai"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "1062"]
[BlackElo "1291"]
[PlyCount "112"]
[EventDate "2014.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Bf4 Nf6 4. c4 dxc4 5. Nc3 c6 6. e3 b5 7. a4 bxa4 8. Bxc4 Bb4 9. Qxa4 Bxc3+ 10. bxc3 Nfd7 11. Ne5 Bb7 12. Nxd7 Qxd7 13. 0-0 0-0 14. Qd1 c5 15. Qg4 Re8 16. Bh6 g6 17. Qf4 Qe7 18. Bg5 Qf8 19. Qf6 Nd7 20. Qf4 Rec8 21. Bb5 Nb6 22. Qf6 Nd5 23. Qe5 Nxc3 24. dxc5 Rxc5 25. Bh6 Rxe5 26. Bxf8 Kxf8 27. Bd3 Rg5 28. f3 f5 29. Ra3 Nd5 30. e4 Ne3 31. Rf2 fxe4 32. Bxe4 Bxe4 33. fxe4+ Kg7 34. Rxe3 a5 35. Ra2 a4 36. Rea3 Rga5 37. Kf1 Kf6 38. Kf2 Ke5 39. Ke3 h5 40. g3 g5 41. h3 g4 42. h4 R8a7 43. Kd3 R5a6 44. Ke3 Ra8 45. Kd3 Rd8+ 46. Ke3 Rd4 47. Kf2 Rxe4 48. Re2 Rxe2+ 49. Kxe2 Kf6 50. Ra1 a3 51. Kd2 a2 52. Kc2 e5 53. Kd2 Kf5 54. Ke2 e4 55. Ke1 e3 56. Ke2 Ke4 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2014.04.08"]
[Round "3"]
[White "Costin, Alexandru"]
[Black "Menlibai, Deniz Edvin"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "1062"]
[BlackElo "1260"]
[PlyCount "60"]
[EventDate "2014.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. c4 c6 5. Nc3 Be7 6. Bd2 0-0 7. Be2 Nbd7 8. 0-0 Bd6 9. c5 Bc7 10. Re1 e5 11. Qc2 e4 12. Ng5 h6 13. Nh3 Nh7 14. f3 f5 15. f4 Ndf6 16. Nf2 Bd7 17. Qd1 Be8 18. g4 fxg4 19. Nxg4 Nxg4 20. Bxg4 Bd7 21. Rf1 Qc8 22. Bxd7 Qxd7 23. Kg2 Rf6 24. Qh5 Raf8 25. Kh1 Qe6 26. Rg1 Kh8 27. Rg2 Qe7 28. Rag1 R8f7 29. Be1 Rf5 30. Qxh6 Qf8 1/2-1/2

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2014.04.07"]
[Round "2"]
[White "Turcuman, Alexandru Gabriel"]
[Black "Costin, Alexandru"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1001"]
[BlackElo "1062"]
[PlyCount "98"]
[EventDate "2014.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. e4 b6 2. Nf3 Bb7 3. Nc3 Nf6 4. Bc4 e6 5. e5 Ng4 6. 0-0 Bc5 7. d3 0-0 8. h3 Nxf2 9. Rxf2 Bxf2+ 10. Kxf2 Nc6 11. Bg5 Qe8 12. Qe2 Ne7 13. h4 f6 14. exf6 gxf6 15. Bh6 Rf7 16. Qe3 Nf5 17. Qf4 d5 18. Bb5 c6 19. Qg4+ Ng7 20. Ba4 b5 21. Bb3 a5 22. a4 b4 23. Ne2 Rd8 24. Nf4 Rdd7 25. Re1 Rde7 26. c4 bxc3 27. bxc3 Bc8 28. d4 e5 29. Qg3 exf4 30. Bxf4 Rxe1 31. Nxe1 Qe6 32. Bd1 Re7 33. Bd2 Ba6 34. h5 h6 35. Bg4 f5 36. Bd1 Be2 37. Qe5 Bxd1 38. Qxe6+ Rxe6 39. Bf4 Bxa4 40. Bc7 Bb5 41. Nf3 Re2+ 42. Kg3 Nxh5+ 43. Kh4 Nf6 44. Bxa5 Rxg2 45. Ne5 f4 46. Kh3 Rg3+ 47. Kh2 Ng4+ 48. Nxg4 Rxg4 49. Kh3 f3 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2014.04.06"]
[Round "1"]
[White "Costin, Alexandru"]
[Black "Sarbu, Zeno Iulius"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1062"]
[BlackElo "1405"]
[PlyCount "99"]
[EventDate "2014.04.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 160 Extra"]
[Source "ChessBase"]
[SourceDate "2014.07.01"]
[SourceVersion "1"]
[SourceVersionDate "2014.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Bf4 Nf6 4. Nc3 b6 5. e3 Bb7 6. Nb5 c6 7. Nc7+ Kd7 8. Nxa8 Bxa8 9. Bd3 Ke8 10. 0-0 Nbd7 11. Re1 Ne4 12. Nd2 Ndf6 13. f3 Nxd2 14. Qxd2 Be7 15. e4 dxe4 16. Bxe4 Nd5 17. Be5 f6 18. Bg3 Kf7 19. Bxd5 Qxd5 20. Red1 Rd8 21. Be1 Qd7 22. c3 Qb7 23. Qe3 c5 24. dxc5 Rxd1 25. Rxd1 Bxc5 26. Rd4 e5 27. b4 exd4 28. cxd4 Bd6 29. Qb3+ Qd5 30. Qxd5+ Bxd5 31. a4 Ke6 32. a5 Bc4 33. axb6 axb6 34. Kf2 Kd5 35. Bc3 Bd3 36. g3 Kc4 37. Bd2 Bxb4 38. Bxb4 Kxb4 39. Ke3 Bg6 40. f4 Kc4 41. Kd2 Kxd4 42. Kc1 b5 43. Kb2 Kc4 44. Ka2 b4 45. Kb2 b3 46. g4 Bf7 47. Ka1 Kc3 48. Kb1 Bg6+ 49. f5 Bxf5+ 50. gxf5 0-1

