[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.23"]
[Round "4"]
[White "Costescu, Mihnea Constantin"]
[Black "Cosma, Ioan"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "1951"]
[BlackElo "2316"]
[PlyCount "52"]
[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 d5 3. c4 e6 4. Nc3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 0-0 11. Be2 b6 12. 0-0 Bb7 13. Qe3 Nd7 14. Rfd1 Rc8 15. d5 exd5 16. exd5 Re8 17. Qd2 Nc5 18. Bb5 Rf8 19. Ne5 Ne4 20. Qb2 Nc3 21. Rd3 Nxb5 22. Qxb5 Rc5 23. Qb3 Rxd5 24. Rad1 Rxd3 25. Rxd3 Qg5 26. Nf3 Bxf3 0-1

[Event "Bucharest Grand Prix op"]
[Site "Bucharest"]
[Date "2024.03.23"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Stoyanov, Tsvetan"]
[Result "0-1"]
[ECO "D24"]
[WhiteElo "1951"]
[BlackElo "2465"]
[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 e6 3. c4 d5 4. Nc3 dxc4 5. e4 b5 6. e5 Nd5 7. Nxb5 Nb6 8. Be2 Be7 9. 0-0 Nc6 10. a4 Na5 11. Be3 Bb7 12. Qc2 0-0 13. Rad1 Qd7 14. Bd2 Nb3 15. Bxc4 Nxd2 16. Nxd2 Qc6 17. f3 a6 18. Na3 Nxa4 19. Qb1 Bxa3 20. bxa3 Nc3 21. Qd3 Nxd1 22. Rxd1 Qa4 23. Ne4 Bxe4 24. fxe4 c6 25. d5 cxd5 26. exd5 exd5 27. Qxd5 Rac8 28. Bb3 Qxa3 29. e6 fxe6 30. Qxe6+ Kh8 31. Qd5 Qc5+ 32. Qxc5 Rxc5 33. Ra1 a5 34. Ba4 g6 35. h3 Rf4 36. Kh2 Rd4 37. Bb3 Rb4 38. Bd1 Kg7 39. Bf3 a4 40. Rd1 Rc7 41. Rd5 Ra7 42. Rd2 a3 43. Bd5 Rd7 0-1

[Event "ROM-ch"]
[Site "Eforie Nord"]
[Date "2024.03.02"]
[Round "9"]
[White "Mintau, Andrei Catalin"]
[Black "Costescu, Mihnea Constantin"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2039"]
[BlackElo "1944"]
[PlyCount "105"]
[EventDate "2024.02.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. e5 dxe5 5. Nxe5 e6 6. g3 Bd6 7. Nc4 0-0 8. Bg2 Nc6 9. d3 Re8 10. Bg5 Be7 11. 0-0 Nd5 12. Bxe7 Rxe7 13. Re1 Rb8 14. Qh5 Rd7 15. Ne5 Nxe5 16. Qxe5 Nc7 17. Qxc5 b6 18. Qe3 h6 19. Rad1 Bb7 20. Bxb7 Rxb7 21. d4 b5 22. Ne4 Rd5 23. Nc5 Rb6 24. f4 Rc6 25. Rd3 Na6 26. Nxa6 Rxa6 27. a3 Rc6 28. Qd2 Rcd6 29. c3 a5 30. Rde3 b4 31. Re5 bxc3 32. bxc3 Rb6 33. Qc2 Rxe5 34. Rxe5 Qb8 35. Re1 Rb2 36. Qe4 Qb3 37. f5 exf5 38. Qxf5 g6 39. Qf6 Kh7 40. Rf1 Kg8 41. Qf3 Rd2 42. Qc6 Rd1 43. Rxd1 Qxd1+ 44. Kf2 Qd2+ 45. Kf3 Qd3+ 46. Kf4 Qd2+ 47. Ke5 Qxh2 48. Qf3 Qb2 49. Qa8+ Kg7 50. Qxa5 Qb8+ 51. Ke4 Qb1+ 52. Ke3 Qe1+ 53. Kf3 1/2-1/2

[Event "ROM-ch"]
[Site "Eforie Nord"]
[Date "2024.03.01"]
[Round "8"]
[White "Costescu, Mihnea Constantin"]
[Black "Nastase, Robert Paul"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1944"]
[BlackElo "2226"]
[PlyCount "56"]
[EventDate "2024.02.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 c6 4. e3 f5 5. Nc3 Nf6 6. Bd3 Bd6 7. Qc2 Ne4 8. h4 0-0 9. Bd2 h6 10. h5 Nd7 11. Nh4 Rf7 12. Ng6 Qg5 13. Bf1 Ndf6 14. Nf4 Bd7 15. Rh3 Re8 16. Nxe4 Nxe4 17. f3 Nxd2 18. Qxd2 e5 19. dxe5 Bxe5 20. 0-0-0 d4 21. Qc2 dxe3 22. Ne2 f4 23. Rh1 Bf5 24. Qb3 Bh7 25. Ng1 Rd8 26. Bd3 Rxd3 27. Rxd3 Bxd3 28. Qxd3 Qxg2 0-1

[Event "ROM-ch"]
[Site "Eforie Nord"]
[Date "2024.02.29"]
[Round "7"]
[White "Bonte, Andrei Mihai"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "2272"]
[BlackElo "1944"]
[PlyCount "57"]
[EventDate "2024.02.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. 0-0 Nc6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. a3 a6 10. b4 Ba7 11. Bb2 b5 12. Be2 Bb7 13. Nbd2 0-0 14. Nb3 Rfd8 15. Rdc1 Rd5 16. Nfd2 Nd8 17. Bf3 Rd7 18. Bxf6 gxf6 19. Ne4 Bxe4 20. Bxe4 Rb8 21. g4 Nb7 22. Rc6 Nd6 23. Rd1 Rb6 24. Nc5 Nxe4 25. Rc8+ Kg7 26. Rxd7 Nd6 27. Rcd8 Bb8 28. Rxb8 Rxb8 29. Rxd6 1-0

[Event "ROM-ch"]
[Site "Eforie Nord"]
[Date "2024.02.28"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Coicev, Matei Andrei"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "1944"]
[BlackElo "2122"]
[PlyCount "87"]
[EventDate "2024.02.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 c5 4. d4 cxd4 5. Nxd4 Bg7 6. e4 d6 7. Be2 0-0 8. 0-0 Nc6 9. Be3 Nxd4 10. Bxd4 Nd7 11. Bxg7 Kxg7 12. Bg4 Nc5 13. b3 Qa5 14. Rc1 Bxg4 15. Qxg4 a6 16. Qe2 b5 17. Nd5 Qd8 18. b4 Nd7 19. cxb5 axb5 20. Nc7 Ra4 21. a3 Nf6 22. Rfd1 Qb8 23. Nxb5 Qb6 24. e5 dxe5 25. Qxe5 Kg8 26. h3 Rb8 27. Qxe7 Re8 28. Qc5 Qb8 29. Nc7 Re2 30. Qc6 Ne4 31. Qxa4 Qb6 32. Qe8+ Kg7 33. Qe5+ Kh6 34. Qd4 Re1+ 35. Kh2 Qxd4 36. Rxd4 Rxc1 37. Rxe4 Rxc7 38. a4 Kg5 39. Re5+ Kf6 40. Rb5 Ke6 41. Kg3 Rc3+ 42. f3 Kd6 43. a5 Ra3 44. Rb7 1-0

[Event "ROM-ch"]
[Site "Eforie Nord"]
[Date "2024.02.26"]
[Round "3"]
[White "Voiteanu, Christian Gabriel"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2151"]
[BlackElo "1944"]
[PlyCount "101"]
[EventDate "2024.02.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Bd2 Be7 8. Qc2 0-0 9. e4 Nxc3 10. Bxc3 c5 11. 0-0-0 cxd4 12. Nxd4 Qc8 13. h4 Nc6 14. Rh3 Nxd4 15. Rxd4 Bc5 16. Rd2 e5 17. Bxe5 Qe6 18. f4 Rfc8 19. Bc4 Be3 20. Bxe6 Bxd2+ 21. Kxd2 Rxc2+ 22. Kxc2 Bxe4+ 23. Kc3 fxe6 24. Rg3 g6 25. Kd4 Bf5 26. h5 Rd8+ 27. Kc4 Rd5 28. a4 a6 29. Bd4 b5+ 30. axb5 axb5+ 31. Kc3 Kf7 32. h6 Be4 33. Be5 Bf5 34. Re3 Ke7 35. Kb4 Bd3 36. Re1 g5 37. fxg5 Kf7 38. g4 Kg6 39. Bf6 e5 40. Kc3 Bc4 41. Ra1 Rd6 42. Ra7 Bf7 43. Bxe5 Rc6+ 44. Kd3 Rc4 45. Bd4 Rc6 46. b3 Rd6 47. Ke4 Re6+ 48. Kf4 Re1 49. Be3 Rf1+ 50. Ke5 Re1 51. Ra6+ 1-0

[Event "ROM-ch"]
[Site "Eforie Nord"]
[Date "2024.02.25"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Prisacaru, Stefan Emilian"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "1944"]
[BlackElo "2289"]
[PlyCount "66"]
[EventDate "2024.02.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. cxd5 exd5 6. Bf4 Bb4 7. Qb3 c5 8. dxc5 Qa5 9. Bd2 Nxc5 10. Qd1 Nce4 11. Nxe4 Nxe4 12. a3 Nxd2 13. Nxd2 Be7 14. e3 Bf6 15. Qb3 0-0 16. Bd3 Be6 17. Bc2 g6 18. Rb1 Rac8 19. Bd3 d4 20. Qb4 Qxb4 21. axb4 dxe3 22. fxe3 Bxb2 23. Ke2 Bc3 24. Ne4 Rfd8 25. h3 Ba2 26. Nxc3 Rxc3 27. Rbd1 Rdxd3 28. Rxd3 Bc4 29. Rhd1 f5 30. g4 Kf7 31. gxf5 gxf5 32. b5 Ke6 33. b6 axb6 0-1

[Event "ROM-ch"]
[Site "Eforie Nord"]
[Date "2024.02.24"]
[Round "1"]
[White "Antonica, Dragos Andrei"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "2366"]
[BlackElo "1944"]
[PlyCount "78"]
[EventDate "2024.02.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 Bxc3 5. bxc3 0-0 6. e4 d6 7. Ne2 c5 8. d3 h6 9. 0-0 Nc6 10. h3 Rb8 11. a4 a6 12. Rb1 Bd7 13. Be3 Qa5 14. f4 Kh7 15. Qd2 Ng8 16. Ra1 Qc7 17. fxe5 Nxe5 18. Nf4 Bc6 19. Qe2 b5 20. cxb5 axb5 21. d4 cxd4 22. cxd4 Nc4 23. Bf2 Rfe8 24. Rfc1 Nf6 25. axb5 Bxb5 26. d5 Rb7 27. Rab1 Rc8 28. Bd4 Nd7 29. Kh2 Nde5 30. Nd3 Qd7 31. Bxe5 Nxe5 32. Rxb5 Qxb5 33. Rxc8 Qxd3 34. Qf2 Rb3 35. Rf8 Rc3 36. Qf5+ Ng6 37. Rxf7 Qxg3+ 38. Kh1 Rc1+ 39. Bf1 Rc2 0-1

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.05"]
[Round "10"]
[White "Costescu, Mihnea Constantin"]
[Black "Stefan, Romulus Cristian"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "1945"]
[BlackElo "2139"]
[PlyCount "79"]
[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. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 Bg4 5. Bg2 Nbd7 6. 0-0 e6 7. Bb2 Qc7 8. Nc3 Be7 9. Rc1 a6 10. h3 Bh5 11. d4 0-0 12. Re1 Qa5 13. e4 dxe4 14. Nxe4 Rfe8 15. Bc3 Qc7 16. Qd2 Rad8 17. Qb2 Bg6 18. Nxf6+ Bxf6 19. d5 e5 20. Nd2 Nc5 21. Bf1 Bd3 22. Re3 Bxf1 23. Rxf1 cxd5 24. cxd5 Rxd5 25. Nc4 Nd3 26. Qe2 Red8 27. Ba5 Rxa5 28. Nxa5 Nb4 29. Nc4 Nc6 30. Rd1 Nd4 31. Rxd4 Rxd4 32. Nxe5 Bxe5 33. Rxe5 h6 34. Re8+ Kh7 35. Qe3 Qc6 36. Kh2 Rd7 37. Re4 Rd1 38. Qf3 Qd5 39. Re3 Qxf3 40. Rxf3 1/2-1/2

[Event "Sebes GP op"]
[Site "Sebes"]
[Date "2023.11.04"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Zatonskih, Anna"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1945"]
[BlackElo "2363"]
[PlyCount "100"]
[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. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 0-0 6. e3 b6 7. Rc1 c5 8. cxd5 Nxd5 9. Nxd5 exd5 10. Be2 Nc6 11. 0-0 c4 12. Nd2 b5 13. Bf3 Be6 14. b3 Nb4 15. bxc4 bxc4 16. a3 Nd3 17. Rc3 Nxf4 18. exf4 Bf6 19. Nb1 Rb8 20. Rc1 Qd6 21. Nc3 g6 22. a4 Rfd8 23. f5 gxf5 24. Re1 Rb3 25. Qd2 a6 26. Bd1 Rbb8 27. Re3 f4 28. Rf3 Bg5 29. Ne2 Bg4 30. Rg3 fxg3 31. Qxg5+ Qg6 32. Qf4 gxf2+ 33. Qxf2 Bxe2 34. Qxe2 Re8 35. Qf1 Rb2 36. Bf3 Qg5 37. Kh1 Reb8 38. Re1 Qf5 39. Qg1 Rb1 40. Bd1 Qd3 41. Rf1 R8b7 42. Re1 Kg7 43. h3 c3 44. Kh2 c2 45. Bxc2 Qxc2 46. Rxb1 Qxb1 47. Qe3 Qg6 48. Qe5+ Qf6 49. Qxd5 Re7 50. Qc5 Qf4+ 0-1

[Event "Arad op 16th"]
[Site "Arad"]
[Date "2023.08.07"]
[Round "1"]
[White "Prraneeth, Vuppala"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2485"]
[BlackElo "1881"]
[PlyCount "51"]
[EventDate "2023.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c4 Ngf6 5. Nc3 g6 6. h3 Bg7 7. d3 0-0 8. Ba4 e6 9. Bg5 h6 10. Be3 Nb6 11. Bb3 Bd7 12. e5 Ne8 13. exd6 Qc8 14. Qd2 Kh7 15. Ne4 Bc6 16. h4 f5 17. h5 fxe4 18. Bxh6 Qd7 19. Bxg7 Kxg7 20. Ne5 Qxd6 21. hxg6 e3 22. Qxe3 Kf6 23. g7 Nxg7 24. Qh6+ Ke7 25. Qxg7+ Ke8 26. Rh8 1-0

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.19"]
[Round "6"]
[White "Ghimpu, Samuel Timotei"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2477"]
[BlackElo "1881"]
[PlyCount "57"]
[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 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. h4 Ne7 9. h5 h6 10. Nf3 b6 11. Rh4 cxd4 12. Nxd4 Ba6 13. Nf5 Qd7 14. Nd6+ Kf8 15. Qf3 Nf5 16. Nxf5 exf5 17. Rd4 Bb7 18. c4 Qe6 19. Qe3 Nd7 20. f4 Rc8 21. Bb4+ Nc5 22. cxd5 Bxd5 23. Rad1 Bc6 24. Ba6 Rc7 25. Rd8+ Be8 26. Bb5 Ke7 27. Qd4 f6 28. Rxe8+ Rxe8 29. Bxe8 1-0

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.18"]
[Round "4"]
[White "Vajda, Albert"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2281"]
[BlackElo "1881"]
[PlyCount "131"]
[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. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. c4 Bf5 5. Qb3 Qb6 6. cxd5 cxd5 7. Nc3 e6 8. d3 Nc6 9. 0-0 Be7 10. Qxb6 axb6 11. Nb5 0-0 12. Bf4 Ra5 13. Nbd4 Nxd4 14. Nxd4 Bg4 15. Rfc1 Rc5 16. h3 Bh5 17. g4 Bg6 18. Nb3 Rc6 19. Nd4 Rc5 20. a3 h5 21. g5 Nd7 22. Be3 Rfc8 23. b4 R5c7 24. Rxc7 Rxc7 25. Rc1 Rxc1+ 26. Bxc1 Kf8 27. f4 Bd6 28. f5 Be5 29. Nxe6+ fxe6 30. fxg6 Bg3 31. b5 Ne5 32. Be3 Nd7 33. d4 Ke7 34. Bf3 h4 35. Bf2 Bf4 36. Bxh4 Be3+ 37. Bf2 Bxg5 38. e4 Nf6 39. e5 Ng8 40. Be2 Nh6 41. Bd3 Bc1 42. a4 Bb2 43. Kg2 Bc3 44. Be3 Kf8 45. Kf3 Be1 46. Bc2 Bh4 47. Bd2 Bd8 48. Be1 Ke8 49. h4 Kf8 50. h5 Ke8 51. Bd2 Ng8 52. Bd3 Nh6 53. Bxh6 gxh6 54. Bf1 Bg5 55. Bh3 Ke7 56. g7 Kf7 57. Bxe6+ Kxg7 58. Bxd5 Bd2 59. Ke4 Kf8 60. Bxb7 Ke7 61. d5 Bb4 62. d6+ Ke6 63. Bc8+ Kf7 64. Bf5 Bc3 65. Kd5 Ke8 66. e6 1-0

[Event "Brasov GP RO"]
[Site "Brasov"]
[Date "2023.07.17"]
[Round "2"]
[White "Antonica, Dragos Andrei"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2321"]
[BlackElo "1881"]
[PlyCount "47"]
[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. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bb4 5. Nf3 0-0 6. 0-0 Bxc3 7. bxc3 d6 8. d3 h6 9. e4 Be6 10. Nh4 Qd7 11. f4 Bh3 12. f5 Bxg2 13. Nxg2 Ne7 14. g4 Nh7 15. h4 c6 16. d4 Rad8 17. Qf3 g5 18. hxg5 hxg5 19. f6 Ng6 20. Qh3 Nf4 21. Qh6 Nxf6 22. Qxg5+ Kh7 23. Qxf6 Qxg4 24. Bxf4 1-0

[Event "ROM-ch"]
[Site "Sebes"]
[Date "2023.02.19"]
[Round "1"]
[White "Cosma, Ioan"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2368"]
[BlackElo "1947"]
[PlyCount "73"]
[EventDate "2023.02.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 c6 7. 0-0 0-0 8. Bf4 d5 9. Nc3 Ba6 10. Bxb8 Qxb8 11. Ne5 Qb7 12. Qb3 Rac8 13. a4 Rfd8 14. cxd5 cxd5 15. Rfc1 Ne4 16. Nb5 Bf6 17. Rxc8 Rxc8 18. Bxe4 Bxe5 19. Bxh7+ Kxh7 20. dxe5 Rc5 21. Qd3+ Kg8 22. Nd6 Bxd3 23. Nxb7 Rc7 24. exd3 Rxb7 25. Rc1 a5 26. b4 axb4 27. Rb1 Ra7 28. Rxb4 Kh7 29. Kg2 Kg6 30. g4 f6 31. exf6 Kxf6 32. f4 g5 33. fxg5+ Ke5 34. h4 b5 35. axb5 Ra2+ 36. Kf3 Ra8 37. b6 1-0

[Event "Targu Mures op 3rd"]
[Site "Targu Mures"]
[Date "2022.06.11"]
[Round "9"]
[White "Ghita, Vlad Bogdan"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "1901"]
[BlackElo "1790"]
[PlyCount "119"]
[EventDate "2022.06.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. e3 a6 4. Bd3 Bg4 5. Nbd2 e6 6. 0-0 Be7 7. b3 0-0 8. Bb2 Nbd7 9. Re1 c6 10. Rc1 b5 11. h3 Bh5 12. e4 dxe4 13. Nxe4 Bg6 14. Nxf6+ Nxf6 15. Bxg6 hxg6 16. c4 Qb6 17. Qe2 Rfd8 18. Ne5 Bb4 19. Red1 Rac8 20. Qf3 Rf8 21. Qg3 Be7 22. Rd3 bxc4 23. Nxc4 Qc7 24. Qxc7 Rxc7 25. Na5 Nd5 26. Nxc6 Bg5 27. Rc5 Rfc8 28. Ne5 Rxc5 29. dxc5 Rxc5 30. Nc4 Bf6 31. Bxf6 gxf6 32. f3 Kg7 33. Kf2 g5 34. Ne3 a5 35. Nxd5 exd5 36. Ke3 Kg6 37. Rd2 Kf5 38. Kd4 Rc8 39. g3 Ke6 40. Rh2 Rh8 41. h4 Rh5 42. Re2+ Kd6 43. Rh2 f5 44. f4 f6 45. a3 gxf4 46. gxf4 Kc6 47. Rh3 Kd6 48. b4 axb4 49. axb4 Rh8 50. h5 Rb8 51. Kc3 d4+ 52. Kc4 Rc8+ 53. Kxd4 Rb8 54. Kc4 Rc8+ 55. Kb3 Rh8 56. h6 Kc6 57. Kc4 Kd6 58. h7 Kc6 59. Rh6 Kb7 60. Kd5 1-0

[Event "Targu Mures op 3rd"]
[Site "Targu Mures"]
[Date "2022.06.10"]
[Round "8"]
[White "Costescu, Mihnea Constantin"]
[Black "Puskas, Janos"]
[Result "0-1"]
[ECO "E14"]
[WhiteElo "1790"]
[BlackElo "2041"]
[PlyCount "78"]
[EventDate "2022.06.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. e3 Bb7 5. Bd3 Bb4+ 6. Bd2 Be7 7. 0-0 0-0 8. Nc3 d5 9. cxd5 exd5 10. Rc1 Nbd7 11. Ne2 Ne4 12. Qc2 Rc8 13. Ng3 f5 14. Bc3 c5 15. Qb1 c4 16. Bc2 b5 17. Nxe4 fxe4 18. Ne5 b4 19. Bd2 Ba6 20. Rfd1 c3 21. Be1 Be2 22. bxc3 bxc3 23. Bb3 Nxe5 24. dxe5 Bxd1 25. Rxd1 Rc5 26. Rc1 Qb8 27. Bxc3 Rfc8 28. g3 Kh8 29. Qb2 Qc7 30. Rd1 Rxc3 31. Rxd5 Rc1+ 32. Kg2 Qc3 33. Qe2 Rf8 34. Qb5 Qe1 35. Bc4 Qxf2+ 36. Kh3 Qf5+ 37. Kg2 Qf3+ 38. Kh3 Qh5+ 39. Kg2 Rc2+ 0-1

[Event "Targu Mures op 3rd"]
[Site "Targu Mures"]
[Date "2022.06.07"]
[Round "5"]
[White "Biro, Sandor"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2127"]
[BlackElo "1790"]
[PlyCount "67"]
[EventDate "2022.06.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nc6 4. cxd4 d5 5. exd5 Qxd5 6. Nf3 e6 7. Nc3 Qd8 8. Bd3 Nf6 9. 0-0 Be7 10. Be3 0-0 11. Rc1 Nb4 12. Bb1 b6 13. a3 Nbd5 14. Nxd5 Qxd5 15. Re1 Bb7 16. Bg5 Rac8 17. Qd3 g6 18. Rcd1 Rfd8 19. Qd2 Qd7 20. Ne5 Qe8 21. h4 Nd7 22. Ng4 h5 23. Nh6+ Kg7 24. Ba2 Bxg5 25. hxg5 Nf8 26. Qf4 Nh7 27. Nxf7 Qxf7 28. Qe5+ Kf8 29. Bxe6 Qg7 30. Qf4+ Nf6 31. gxf6 Qh7 32. Bxc8 Bxc8 33. Re7 Qh8 34. Qc7 1-0

[Event "Targu Mures op 3rd"]
[Site "Targu Mures"]
[Date "2022.06.06"]
[Round "3"]
[White "Vladescu, Alin Cristian"]
[Black "Costescu, Mihnea Constantin"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2004"]
[BlackElo "1790"]
[PlyCount "108"]
[EventDate "2022.06.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Nbd2 d6 6. Bc4 c5 7. c3 Nbd7 8. 0-0 b6 9. h3 Bb7 10. a4 a6 11. Qb3 d5 12. Be2 c4 13. Qc2 b5 14. Ne5 Nb6 15. axb5 axb5 16. Bf3 Nfd7 17. Nxd7 Nxd7 18. b3 e5 19. dxe5 Nxe5 20. Bxe5 Bxe5 21. Rxa8 Bxa8 22. bxc4 dxc4 23. Bxa8 Qxa8 24. Nf3 Bf6 25. Rb1 Qa4 26. Qb2 Rb8 27. Nd4 Qa6 28. Qb4 Be5 29. Qb2 h5 30. g3 h4 31. g4 Kh7 32. Qc2 Bd6 33. Qe4 b4 34. cxb4 Rxb4 35. Rc1 Qa3 36. Qc2 Bc5 37. Nc6 Bxe3 38. Nxb4 Qxc1+ 39. Qxc1 Bxc1 40. Kf1 Bd2 41. Nd5 Ba5 42. Ke2 Kg7 43. f4 c3 44. Kd3 f5 45. gxf5 gxf5 46. Nxc3 Kf6 47. Nd5+ Ke6 48. Ne3 Be1 49. Ke2 Bb4 50. Kf3 Be7 51. Ke2 Bc5 52. Ng2 Be7 53. Kd3 Bf6 54. Kc4 Be7 1/2-1/2

[Event "Targu Mures op 3rd"]
[Site "Targu Mures"]
[Date "2022.06.05"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Mozes, Ervin"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "1790"]
[BlackElo "2066"]
[PlyCount "90"]
[EventDate "2022.06.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 c6 4. g3 Bf5 5. Bg2 h6 6. 0-0 e6 7. Nc3 Be7 8. b3 Ne4 9. Bb2 d5 10. Nd2 Nxc3 11. Bxc3 0-0 12. e4 dxe4 13. Nxe4 Nd7 14. Qe2 Nf6 15. Rad1 Nxe4 16. Bxe4 Bxe4 17. Qxe4 Bf6 18. Rd3 Re8 19. Rfd1 Qc7 20. Bd2 Rad8 21. Qg4 Kf8 22. Bf4 Qa5 23. a4 h5 24. Qf3 Qf5 25. Kg2 g5 26. Be3 Qxf3+ 27. Kxf3 g4+ 28. Kg2 Kg7 29. d5 cxd5 30. cxd5 b6 31. dxe6 Rxd3 32. Rxd3 Rxe6 33. Bf4 Be5 34. Bxe5+ Rxe5 35. Rd7 Ra5 36. h3 Kf6 37. hxg4 hxg4 38. Rd4 Rg5 39. b4 Ke7 40. Rc4 Kd7 41. Rf4 Ke6 42. Rc4 Kd7 43. f3 gxf3+ 44. Kxf3 b5 45. Rf4 Ke6 1/2-1/2

[Event "ROM-ch U16"]
[Site "Eforie Nord"]
[Date "2022.04.14"]
[Round "5"]
[White "Veress, Armand"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2070"]
[BlackElo "1698"]
[PlyCount "75"]
[EventDate "2022.04.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nf6 5. Bg5 g6 6. Bxf6 exf6 7. Nc3 Nc6 8. Qd2 h5 9. Rd1 a6 10. Be2 Be6 11. 0-0 Ne5 12. Nd4 Bc4 13. f4 Bh6 14. b3 Bxe2 15. Qxe2 Nc6 16. e5 fxe5 17. Nxc6 bxc6 18. fxe5 d5 19. e6 0-0 20. exf7+ Kh7 21. Qe6 Ra7 22. Qxc6 Rc7 23. Qxd5 Qxd5 24. Nxd5 Rxc2 25. Nb4 Be3+ 26. Kh1 Rf2 27. Rxf2 Bxf2 28. Nxa6 Rxf7 29. g3 Ra7 30. Rd6 Re7 31. Rd2 Bb6 32. b4 g5 33. Nc5 g4 34. Kg2 Ra7 35. Rd7+ Kg8 36. Rxa7 Bxa7 37. Nd7 Kf7 38. b5 1-0

[Event "ROM-ch blitz"]
[Site "Bucharest"]
[Date "2022.03.13"]
[Round "1"]
[White "Radu, Ioan"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2075"]
[BlackElo "1427"]
[PlyCount "73"]
[EventDate "2022.03.13"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 c5 4. c3 Nc6 5. d4 Nge7 6. Bd3 Ng6 7. 0-0 Be7 8. Be3 cxd4 9. cxd4 0-0 10. Nc3 Bd7 11. Rc1 Rc8 12. a3 Na5 13. Nd2 Qb6 14. b4 Nc6 15. Nb3 Rfd8 16. f4 a5 17. b5 Na7 18. Na4 Rxc1 19. Qxc1 Qxb5 20. Bxb5 Bxb5 21. Nac5 Bxf1 22. Qxf1 b6 23. Nb7 Rb8 24. Qa6 Nc8 25. a4 Bb4 26. Nd8 Nge7 27. Qb5 Kf8 28. Nc6 Nxc6 29. Qxc6 Ne7 30. Qc7 Rc8 31. Qxb6 g6 32. Nc5 Nf5 33. Bf2 Kg7 34. g4 Ne7 35. Bh4 Nc6 36. Bf6+ Kf8 37. Qb7 0-1

[Event "ROM-ch Rapid"]
[Site "Bucharest"]
[Date "2022.03.11"]
[Round "1"]
[White "Stefan, Romulus Cristian"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2088"]
[BlackElo "1633"]
[PlyCount "125"]
[EventDate "2022.03.11"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. Bd3 Nf5 7. Bxf5 exf5 8. h4 cxd4 9. cxd4 Be7 10. Nc3 h6 11. h5 0-0 12. Be3 Be6 13. Qd2 Rc8 14. Kf1 Na5 15. g3 Nc4 16. Qe2 Qb6 17. Bc1 Bb4 18. Na4 Qc6 19. Nc5 Bxc5 20. dxc5 Qxc5 21. Rh4 Bd7 22. Kg1 Bb5 23. Qd1 Rfe8 24. a4 Bc6 25. Nd4 Nxe5 26. b4 Qc3 27. Ra3 Bxa4 28. Qxa4 Qxc1+ 29. Kg2 a6 30. Re3 Nc6 31. Nxf5 Rxe3 32. fxe3 Qb2+ 33. Kh3 Qf6 34. Rf4 Qg5 35. g4 d4 36. b5 axb5 37. Qb3 Re8 38. Nxh6+ Kh7 39. Nxf7 Qxf4 40. Qb1+ Kg8 41. exf4 Re3+ 42. Kh4 Kxf7 43. Qg6+ Kf8 44. h6 gxh6 45. Qxh6+ Ke7 46. Qg5+ Kd6 47. Qxb5 d3 48. Qb2 Re2 49. Qa3+ Nb4 50. Qxb4+ Kd5 51. Qxb7+ Kd4 52. Qd7+ Ke3 53. f5 d2 54. f6 Rf2 55. Kg5 Ke2 56. Kg6 Rf3 57. f7 Rd3 58. Qxd3+ Kxd3 59. f8Q Ke3 60. Qd6 Ke2 61. g5 d1Q 62. Qxd1+ Kxd1 63. Kf5 1-0

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.24"]
[Round "9"]
[White "Pejrimovska, Viola Ruby"]
[Black "Costescu, Mihnea Constantin"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1643"]
[BlackElo "1570"]
[PlyCount "163"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 Bd7 4. Be2 c5 5. b4 cxb4 6. d4 Nc6 7. a3 bxa3 8. c3 a6 9. 0-0 b5 10. Nxa3 Nge7 11. Nc2 Nf5 12. Bd3 Be7 13. Kh1 0-0 14. g4 Nh4 15. Nxh4 Bxh4 16. g5 Bxg5 17. Qh5 h6 18. f4 Be7 19. Rg1 f5 20. Qxh6 Rf7 21. Be2 Bf8 22. Bh5 g6 23. Rxg6+ Rg7 24. Ba3 Ne7 25. Bxe7 Qxe7 26. Rag1 Be8 27. Rxg7+ Bxg7 28. Bxe8 Rxe8 29. Nb4 Kf8 30. Qg6 Ra8 31. Nd3 Qf7 32. Nc5 Qxg6 33. Rxg6 a5 34. Nxe6+ Kf7 35. Rxg7+ Kxe6 36. Rb7 a4 37. Rxb5 a3 38. Rb1 a2 39. Ra1 Kd7 40. Kg2 Kc6 41. e6 Kd6 42. Kf3 Kxe6 43. Ke3 Kd6 44. Kd3 Kc6 45. h4 Rh8 46. Rxa2 Rxh4 47. Rf2 Rh3+ 48. Kd2 Kb5 49. Re2 Kc4 50. Re5 Rh2+ 51. Ke1 Rh5 52. Kf2 Kxc3 53. Rxd5 Kc4 54. Rd8 Rh2+ 55. Kg3 Rh5 56. d5 Kc5 57. d6 Kc6 58. d7 Kc7 59. Rg8 Kxd7 60. Rg5 Rxg5+ 61. fxg5 Ke7 62. Kf3 Kf7 63. Ke3 Kg7 64. Kf3 Kh7 65. Kg3 Kg7 66. Kf3 Kf7 67. Ke3 Kg7 68. Kf3 Kh7 69. Kg3 Kg7 70. Kf3 Kf7 71. Ke3 Kg7 72. Kf3 Kh7 73. Kg3 Kg7 74. Kf3 Kf7 75. Ke3 Kg7 76. Kf3 Kh7 77. Kg3 Kg7 78. Kf3 Kf7 79. Ke3 Kg7 80. Kf3 Kf7 81. Ke3 Kg7 82. Kf3 1/2-1/2

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.23"]
[Round "8"]
[White "Costescu, Mihnea Constantin"]
[Black "Handlovsky, Jachym"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1570"]
[BlackElo "1328"]
[PlyCount "65"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 0-0 6. e3 b6 7. Rc1 dxc4 8. Bxc4 Bb7 9. 0-0 a6 10. h3 Nbd7 11. a4 c5 12. d5 exd5 13. Nxd5 Nxd5 14. Bxd5 Bxd5 15. Qxd5 Qc8 16. Rfd1 Rd8 17. Ng5 Bxg5 18. Bxg5 Nf6 19. Qb3 Qc6 20. Qc4 h6 21. Bf4 Ne4 22. f3 Nf6 23. Rxd8+ Rxd8 24. Qxa6 Ra8 25. Rxc5 Rxa6 26. Rxc6 Rxa4 27. Rxb6 Nd5 28. Rb8+ Kh7 29. Kf2 Nxf4 30. exf4 Rxf4 31. b4 Kg6 32. Ke3 Kf5 33. Rb5+ 1-0

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.22"]
[Round "7"]
[White "Naymanova, Patricie"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1646"]
[BlackElo "1570"]
[PlyCount "107"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. Bg5 d5 4. e3 Be7 5. Bd3 h6 6. Bh4 b6 7. c3 0-0 8. Nbd2 Ba6 9. Bxa6 Nxa6 10. Qe2 Nb8 11. Ne5 Nfd7 12. Bxe7 Qxe7 13. Ndf3 Qd6 14. 0-0 Nxe5 15. Nxe5 Nd7 16. Nxd7 Qxd7 17. c4 c6 18. Rac1 Rfc8 19. Rc3 Rc7 20. Rfc1 Rac8 21. Qc2 dxc4 22. Rxc4 Qd5 23. h3 c5 24. b4 Rb8 25. bxc5 b5 26. Rc3 a5 27. c6 Rb6 28. Rc5 Qd6 29. Qc3 b4 30. Qc4 a4 31. e4 b3 32. e5 Qd8 33. Qxa4 b2 34. Rb1 Qg5 35. Qc2 Qg6 36. Rxb2 Qxc2 37. Rbxc2 Rb1+ 38. Kh2 Kf8 39. a4 Ra1 40. a5 Ke7 41. Rb2 Ra4 42. Rb7 Kd8 43. Rb8+ Ke7 44. Rcb5 Rxd4 45. R5b7 Rxb7 46. Rxb7+ Kd8 47. a6 Ra4 48. a7 f6 49. Rb8+ Kc7 50. a8Q Rxa8 51. Rxa8 Kxc6 52. exf6 gxf6 53. Rh8 Kd5 54. Rxh6 1-0

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.21"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Subjakova, Kristina"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "1570"]
[BlackElo "1680"]
[PlyCount "84"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 0-0 7. Qc2 Qe8 8. cxd5 exd5 9. Bd3 Bg4 10. 0-0 Bxf3 11. gxf3 Bd6 12. a3 a6 13. Ne2 g6 14. e4 Nd7 15. e5 Nxd4 16. Nxd4 Qxe5 17. f4 Qxd4 18. Be3 Qf6 19. Qd2 d4 20. Qc2 dxe3 21. fxe3 Bc5 22. Rae1 Rfe8 23. Qd2 Qe6 24. Rf3 Qg4+ 25. Rg3 Qxf4 26. Kh1 Qd6 27. Qe2 Re5 28. Bc4 Rae8 29. e4 Nf6 30. Qf3 Rxe4 31. Rc1 Re1+ 32. Rxe1 Rxe1+ 33. Kg2 Rg1+ 34. Kh3 Rxg3+ 35. hxg3 c6 36. g4 Bg1 37. Kg2 Qh2+ 38. Kf1 Bd4 39. g5 Qg1+ 40. Ke2 Qxg5 41. Kd3 Bxb2 42. Ba2 Qf5+ 0-1

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.20"]
[Round "5"]
[White "Costescu, Mihnea Constantin"]
[Black "Pragai, Rares Alexandru"]
[Result "0-1"]
[ECO "E21"]
[WhiteElo "1570"]
[BlackElo "1704"]
[PlyCount "84"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb4 5. Qb3 Bxc3+ 6. bxc3 Ne4 7. d5 Na6 8. Be3 0-0 9. g3 Nac5 10. Qc2 Ba6 11. Bg2 Bxc4 12. Ne5 Bxd5 13. c4 Bb7 14. 0-0 d6 15. Rad1 Qe8 16. Nf3 Qa4 17. Qxa4 Nxa4 18. Ng5 Nec5 19. Bd4 Bxg2 20. Kxg2 e5 21. Ba1 h6 22. Nf3 Ne4 23. Rd3 f5 24. Nd2 Nac5 25. Rd5 c6 26. Nxe4 cxd5 27. Nxc5 bxc5 28. cxd5 Rab8 29. f4 e4 30. Rc1 Rb5 31. Kf2 Rfb8 32. Rc2 R8b6 33. Bc3 Ra6 34. Ke3 Ra3 35. g4 g6 36. gxf5 gxf5 37. Kf2 Kh7 38. Kg3 Rb4 39. Kh4 Rc4 40. Rb2 Rcxc3 41. Rb7+ Kg6 42. Rd7 Rh3# 0-1

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.19"]
[Round "4"]
[White "Griksaite, Leva"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1298"]
[BlackElo "1570"]
[PlyCount "60"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 Nc6 5. Bb5 Nd4 6. Bc4 e6 7. 0-0 Ne7 8. d3 0-0 9. Nxd4 cxd4 10. Ne2 d5 11. Bb3 e5 12. Ng3 dxe4 13. Nxe4 Nf5 14. Qf3 Bd7 15. g4 Ne3 16. Bxe3 dxe3 17. Rab1 exf4 18. Qxf4 Be6 19. Kh1 Bxb3 20. axb3 Qc8 21. c4 Qc6 22. Qd6 Qxd6 23. Nxd6 Rad8 24. Nxb7 Rxd3 25. Nc5 Rd2 26. Rbe1 Rxb2 27. Nd3 Rxb3 28. Rxe3 Rd8 29. Rd1 Rc3 30. Rb1 Rcxd3 0-1

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.18"]
[Round "3"]
[White "Costescu, Mihnea Constantin"]
[Black "Nespora, Tatana"]
[Result "1-0"]
[ECO "E69"]
[WhiteElo "1570"]
[BlackElo "1327"]
[PlyCount "57"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 d6 5. Bg2 0-0 6. 0-0 c6 7. Nc3 Qa5 8. e4 Nbd7 9. Re1 e5 10. h3 Re8 11. Be3 exd4 12. Nxd4 Ne5 13. Nb3 Qb4 14. c5 Nc4 15. cxd6 Nxb2 16. Qc2 Nd7 17. Bd2 Qa3 18. Bc1 Bxc3 19. Qxc3 Na4 20. Qd2 Nb2 21. Bxb2 Qa6 22. Qd4 Ne5 23. f4 Bxh3 24. fxe5 Be6 25. Nc5 Qb6 26. Nxe6 fxe6 27. Qxb6 axb6 28. Bc1 Ra5 29. Bg5 1-0

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.17"]
[Round "2"]
[White "Matasaru, Stephanie"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "C16"]
[WhiteElo "1858"]
[BlackElo "1570"]
[PlyCount "107"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Bxc3+ 5. bxc3 Ne7 6. Bd3 c5 7. Nf3 c4 8. Be2 Qa5 9. Bd2 Bd7 10. 0-0 Ba4 11. Qb1 b6 12. Qb2 0-0 13. Bd1 Na6 14. Bg5 Ng6 15. h4 h6 16. Bd2 Rfc8 17. h5 Ne7 18. Qc1 Kf8 19. Nh4 Nc7 20. g4 Ke8 21. f4 Kd7 22. f5 Rg8 23. f6 Nc6 24. fxg7 Rxg7 25. Bxh6 Rh7 26. Rf3 Nxd4 27. cxd4 Qe1+ 28. Kg2 Qxh4 29. Rg3 Rg8 30. Qf4 Kc8 31. Qe3 Kb7 32. Bf4 Qe7 33. c3 Bxd1 34. Rxd1 Qa3 35. Qd2 Nb5 36. Rh1 Qa4 37. g5 Na3 38. g6 fxg6 39. hxg6 Rxh1 40. Kxh1 Qc2 41. Qxc2 Nxc2 42. g7 Ne1 43. Bh6 Kc7 44. Re3 Nc2 45. Rf3 b5 46. Rf8 b4 47. Rxg8 b3 48. Rc8+ Kxc8 49. g8Q+ Kb7 50. Qf7+ Ka6 51. Qxe6+ Kb5 52. Qxd5+ Kb6 53. axb3 cxb3 54. Qxb3+ 1-0

[Event "EU Union-ch U14"]
[Site "Kouty nad Desnou"]
[Date "2019.08.16"]
[Round "1"]
[White "Costescu, Mihnea Constantin"]
[Black "Nadzamova, Viktoria"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "1570"]
[BlackElo "1901"]
[PlyCount "108"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 exd5 7. g3 Bd6 8. Bg2 0-0 9. 0-0 Re8 10. Bg5 Nbd7 11. Re1 h6 12. Bd2 Ne4 13. Nb5 Nxd2 14. Qxd2 Bf8 15. Qf4 Bc6 16. Nc3 Nf6 17. Ne5 Bb7 18. Rac1 c6 19. Qd2 Bd6 20. f4 a6 21. Na4 Bxe5 22. fxe5 Nd7 23. e4 dxe4 24. Bxe4 Nxe5 25. Qc3 Ng4 26. Bf3 Rxe1+ 27. Rxe1 Nf6 28. Qb4 c5 29. Qxb6 Qxd4+ 30. Kg2 Bxf3+ 31. Kxf3 Qxa4 32. Re7 Re8 33. Qxc5 Rxe7 34. Qxe7 Qb3+ 35. Kg2 Qxb2+ 36. Kh3 Qd4 37. Qe2 Qd7+ 38. Kg2 Qd5+ 39. Kg1 Qc5+ 40. Kg2 Qxa3 41. Qc2 a5 42. Qc8+ Qf8 43. Qa6 Qd8 44. Kh3 Qd7+ 45. Kg2 a4 46. h4 Qd5+ 47. Kh2 Ng4+ 48. Kg1 Qf3 49. Qc8+ Kh7 50. Qc2+ g6 51. Qa2 Qxg3+ 52. Kf1 Qf2+ 53. Qxf2 Nxf2 54. Kxf2 a3 0-1

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.22"]
[Round "9"]
[White "Lungu, Alexandru"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "1651"]
[BlackElo "1589"]
[PlyCount "61"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 a6 6. 0-0 Nbd7 7. a4 c5 8. Nc3 cxd4 9. exd4 Nb6 10. Bb3 Be7 11. Re1 0-0 12. Ne5 Nbd5 13. Qf3 Bb4 14. Bg5 Qb6 15. a5 Qxd4 16. Rad1 Qc5 17. Nd3 Qxa5 18. Nxb4 Nxc3 19. Bxf6 Nxd1 20. Qg4 g6 21. Rxd1 Qf5 22. Qh4 e5 23. Nd5 h5 24. Ne7+ Kh7 25. Nxf5 Bxf5 26. Bxe5 Bg4 27. Qf6 Rg8 28. Qxf7+ Kh6 29. Bf4+ g5 30. Rd6+ Rg6 31. Rxg6# 1-0

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.21"]
[Round "8"]
[White "Costescu, Mihnea Constantin"]
[Black "Rata, Andrei"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "1589"]
[BlackElo "1407"]
[PlyCount "45"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 a6 7. Nc3 axb5 8. Nxb5 Ba6 9. Nd6+ Bxd6 10. Qxd6 Ne4 11. Qd1 0-0 12. g3 Nc6 13. Be3 d5 14. Bh3 Qf6 15. 0-0 d4 16. Nd2 Nxd2 17. Bxd2 d3 18. exd3 Ne5 19. Bg2 Rad8 20. Bc3 Rxd3 21. Qe2 Nf3+ 22. Bxf3 Qxf3 23. Qxe6+ 1-0

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.20"]
[Round "7"]
[White "Gligor, Horia Teodor"]
[Black "Costescu, Mihnea Constantin"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1289"]
[BlackElo "1589"]
[PlyCount "124"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 Nc6 5. Bb5 Nd4 6. 0-0 Nxb5 7. Nxb5 d6 8. d3 Bd7 9. Nc3 e6 10. Bd2 Ne7 11. Qe1 0-0 12. Qh4 Nc6 13. Qh3 a6 14. a3 Nd4 15. Nxd4 Bxd4+ 16. Be3 Bg7 17. Qg3 Bc6 18. Rad1 b5 19. e5 dxe5 20. Bxc5 Re8 21. fxe5 a5 22. b4 axb4 23. axb4 Ra3 24. d4 Qa8 25. Rd3 Ra1 26. Bd6 Rc8 27. Bc5 Rd8 28. Qf2 Rd7 29. Rxa1 Qxa1+ 30. Qf1 Qb2 31. Qe2 Qc1+ 32. Qd1 Qb2 33. Qb1 Qxb1+ 34. Nxb1 Be4 35. Rd2 f6 36. Re2 Bf5 37. Kf2 Kf7 38. Na3 fxe5 39. dxe5 Bg4 40. Re4 Rd2+ 41. Kf1 Rd1+ 42. Kf2 Rd2+ 43. Kg3 Bf5 44. Re3 Rd5 45. Bd6 Ke8 46. c4 bxc4 47. Nxc4 Rd4 48. Na3 Bh6 49. Rb3 Bf4+ 50. Kf2 Be4 51. g3 Bg5 52. h4 Bh6 53. b5 Rd2+ 54. Ke1 Bd5 55. b6 Bxb3 56. b7 Rd1+ 57. Kf2 Rd2+ 58. Kf1 Rd1+ 59. Ke2 Rd2+ 60. Kf1 Rd1+ 61. Ke2 Rd2+ 62. Kf1 Rd1+ 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.19"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Chiriac, Andrei Cosmin"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "1589"]
[BlackElo "1488"]
[PlyCount "43"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 d6 5. Bf4 Bg7 6. e4 0-0 7. Be2 Qa5 8. 0-0 Qb4 9. a3 Qb6 10. Rb1 Nh5 11. Bd2 Qd8 12. h3 b6 13. Nh2 Ba6 14. Ng4 e5 15. Re1 Bxe2 16. Nxe2 f5 17. Nh6+ Kh8 18. exf5 gxf5 19. Nc3 Qe8 20. Nxf5 Rxf5 21. g4 Qg6 22. Kf1 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.18"]
[Round "5"]
[White "Costache, Robert Andrei"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "D48"]
[WhiteElo "1404"]
[BlackElo "1589"]
[PlyCount "74"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nc3 a6 6. Nf3 b5 7. Bd3 Nbd7 8. 0-0 c5 9. b3 Bb7 10. Bb2 Be7 11. Nd2 cxd4 12. exd4 0-0 13. Be4 Nxe4 14. Ndxe4 b4 15. Re1 bxc3 16. Nxc3 Nf6 17. Rc1 Rc8 18. Qd3 Nd5 19. Nxd5 Qxd5 20. f3 Bf6 21. Red1 Rxc1 22. Rxc1 Rd8 23. Rd1 h6 24. Qc4 e5 25. Qxd5 Rxd5 26. Kf2 exd4 27. Rd3 Kf8 28. a4 Ke7 29. g4 Ke6 30. f4 a5 31. f5+ Ke5 32. Ba3 Ke4 33. Rd1 Bh4+ 34. Kg2 Ke3 35. Bc1+ Ke2 36. Rd2+ Ke1 37. Kg1 Bg5 0-1

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.17"]
[Round "3"]
[White "Anghel, Iulian Mihai"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "1909"]
[BlackElo "1589"]
[PlyCount "69"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. 0-0 Be7 8. Kh1 0-0 9. f4 d6 10. Qe2 Nbd7 11. Bd2 Nc5 12. b4 Nxd3 13. cxd3 b5 14. Rac1 Qd7 15. Nb3 Bb7 16. Na5 Rac8 17. Nxb7 Qxb7 18. a3 Rfe8 19. g4 d5 20. g5 dxe4 21. gxf6 e3+ 22. Ne4 exd2 23. Rxc8 Rxc8 24. Qg2 Bf8 25. fxg7 Be7 26. Nf6+ Bxf6 27. Qxb7 Rc1 28. Qf3 Re1 29. Rg1 Bd8 30. Qh5 Bf6 31. Qxh7+ Kxh7 32. g8Q+ Kh6 33. Qf8+ Bg7 34. Qxg7+ Kh5 35. Qg5# 1-0

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.17"]
[Round "4"]
[White "Costescu, Mihnea Constantin"]
[Black "Oprea, Cosmin Catalin"]
[Result "0-1"]
[ECO "D92"]
[WhiteElo "1589"]
[BlackElo "1184"]
[PlyCount "118"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Nf6 3. c4 d5 4. Nc3 Bg7 5. Bf4 c6 6. e3 Bg4 7. h3 Bxf3 8. Qxf3 Qa5 9. Qd1 Ne4 10. Qc2 c5 11. cxd5 cxd4 12. Bb5+ Kf8 13. exd4 Nxc3 14. Qxc3 Qxb5 15. Qc8+ Qe8 16. Qxb7 Nd7 17. 0-0 Bxd4 18. Rfe1 Kg7 19. Qb4 Bf6 20. g4 h6 21. Qd2 g5 22. Bd6 Qd8 23. Ba3 Ne5 24. Qd1 Nc4 25. Bxe7 Bxe7 26. Qd4+ Bf6 27. Qxc4 Bxb2 28. Rab1 Bf6 29. Rb7 Re8 30. Rd1 Re7 31. Rbb1 Qc7 32. Qd3 Qc3 33. Qf1 Rd7 34. Rbc1 Qa5 35. Qc4 Rad8 36. Qe4 Rxd5 37. Rf1 Qxa2 38. Rc6 R5d6 39. Rc7 R8d7 40. Rc8 Rd8 41. Rc7 Rd2 42. Qf5 Qb3 43. Rxa7 Qd5 44. Ra5 Qd3 45. Qxd3 R8xd3 46. Kg2 Rd1 47. Rxd1 Rxd1 48. Rf5 Kg6 49. Kf3 Rd3+ 50. Kg2 Bc3 51. Kh2 f6 52. Kg2 Be5 53. f3 Rd2+ 54. Kg1 Rd4 55. Kg2 Rf4 56. Rxf4 Bxf4 57. Kf2 h5 58. Ke2 h4 59. Kd3 Kf7 0-1

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.16"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Veress, Armand"]
[Result "1/2-1/2"]
[ECO "D34"]
[WhiteElo "1589"]
[BlackElo "1887"]
[PlyCount "48"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Nc3 Nc6 6. g3 Nf6 7. Bg2 Be6 8. 0-0 h6 9. a3 Be7 10. dxc5 Bxc5 11. b4 Be7 12. Bb2 0-0 13. Rc1 Rc8 14. Nb5 Qb6 15. Nbd4 Ne4 16. e3 Bg4 17. h3 Bxf3 18. Bxf3 Rfd8 19. Bxe4 dxe4 20. Qg4 Bf6 21. Nxc6 Rxc6 22. Rxc6 Qxc6 23. Bxf6 Qxf6 24. Qxe4 b6 1/2-1/2

[Event "ROM-ch U14"]
[Site "Calimanesti Caciulata"]
[Date "2019.04.15"]
[Round "1"]
[White "Iordachescu, Radu Teodor"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1055"]
[BlackElo "1589"]
[PlyCount "64"]
[EventDate "2019.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ROU"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 Nc6 4. Nc3 Nf6 5. e5 Ng4 6. d4 cxd4 7. Nxd4 Ngxe5 8. Nxc6 Nxc6 9. Bd3 Be7 10. 0-0 0-0 11. Qh5 f5 12. Bd2 d6 13. Nb5 Ne5 14. Qe2 Nxd3 15. Qxd3 Bd7 16. Bf4 e5 17. Bd2 Be6 18. Nc3 a6 19. Nd5 Kh8 20. Nxe7 Qxe7 21. Bb4 Rfd8 22. Rfd1 Qf7 23. b3 d5 24. cxd5 Rxd5 25. Qe3 Rad8 26. Rxd5 Rxd5 27. Qa7 Qd7 28. Qb8+ Qd8 29. Qxb7 Rd1+ 30. Be1 Rxa1 31. Kf1 Qd3+ 32. Kg1 Rxe1# 0-1

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.15"]
[Round "9"]
[White "Costescu, Mihnea Constantin"]
[Black "Zumrik, Lukas"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "1517"]
[BlackElo "1566"]
[PlyCount "157"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. h3 Qb6 7. e3 Qxb2 8. Nb5 e5 9. Be2 Qb4+ 10. Kf1 exf4 11. Nc7+ Kd8 12. Nxa8 Qd6 13. Nf3 h6 14. Rc1 fxe3 15. Qc2 Ne4 16. Ne5 Qf6 17. Bf3 Nd2+ 18. Kg1 exf2+ 19. Kxf2 Qh4+ 20. g3 Qxd4+ 21. Kg2 Qxe5 22. Qxd2 Bd6 23. Qf2 Be6 24. Rhe1 Qf5 25. Rh1 Ke7 26. Qb2 Rb8 27. Bg4 Qe5 28. Qb3 d4 29. Bxe6 fxe6 30. Rhe1 Qf5 31. Nc7 Bxc7 32. Rc5 Qg6 33. h4 d3 34. Re3 Bb6 35. h5 Qf7 36. Rf3 Qg8 37. Rc1 Qd8 38. Rxd3 Nd4 39. Qb4+ Qd6 40. Rxd4 Qxb4 41. Rxb4 Rd8 42. a4 Rd5 43. g4 Kd6 44. Rf1 Rd4 45. Rxd4+ Bxd4 46. Rf7 Kc6 47. Re7 b5 48. Rxe6+ Kd5 49. Re1 b4 50. Kf3 b3 51. Ke2 Kc4 52. Rc1+ Kb4 53. Kd3 Bf6 54. Rc7 a5 55. Rb7+ Kxa4 56. Rb8 Ka3 57. Kd2 a4 58. Ra8 Be5 59. Ra7 b2 60. Kc2 Kb4 61. Rb7+ Ka5 62. Kb1 a3 63. Ka2 Ka6 64. Rb3 Bd6 65. Rd3 Bb4 66. Rd7 Bc3 67. Rd3 Be5 68. Rxa3+ Kb6 69. Kb1 Kc6 70. Rd3 Kc5 71. Rd7 Kc4 72. Rd8 Bd4 73. Rd7 Kd3 74. Re7 Bf6 75. Re1 Bc3 76. Re7 Bf6 77. Re1 Bh4 78. Re8 Bf6 79. Re1 1/2-1/2

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.14"]
[Round "8"]
[White "Backiel, Hubert"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "1675"]
[BlackElo "1517"]
[PlyCount "107"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. Nf3 e4 5. Nd4 d5 6. cxd5 Qxd5 7. Nb3 Na6 8. Nc3 Qe5 9. 0-0 Bd6 10. d3 exd3 11. exd3 0-0 12. Bf4 Qe7 13. Re1 Qc7 14. Bg5 Ng4 15. Ne4 Bb4 16. Bf4 Qd8 17. Rf1 h6 18. a3 Be7 19. Qc2 Bf5 20. h3 Nf6 21. g4 Be6 22. Rad1 Qb6 23. Nbd2 Qd8 24. Nf3 Nc7 25. Bg3 Qc8 26. Nd4 Nfd5 27. Rfe1 Re8 28. Kh2 Bd7 29. Nf3 Ne6 30. Qc1 b6 31. Ne5 Ng5 32. Nc4 Nxe4 33. dxe4 Nf6 34. Nd6 Bxd6 35. Rxd6 Qb7 36. Red1 Rac8 37. Bh4 Be6 38. Bxf6 gxf6 39. Qxh6 Qc7 40. Qxf6 Rcd8 41. e5 Rc8 42. Rxc6 Qb8 43. Rcd6 b5 44. Be4 a5 45. Qg5+ Kh8 46. Qh6+ Kg8 47. Bh7+ Kh8 48. Bf5+ Kg8 49. Qh7+ Kf8 50. Qh8+ Ke7 51. Qf6+ Kf8 52. Bxe6 Rxe6 53. Qh8+ Ke7 54. Rd7# 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.13"]
[Round "7"]
[White "Costescu, Mihnea Constantin"]
[Black "Smirnova, Jekaterina"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "1517"]
[BlackElo "1170"]
[PlyCount "53"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. c4 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bf4 a6 8. a4 Bg4 9. e3 Bg7 10. h3 Bxf3 11. Qxf3 Nh5 12. Qe4+ Kf8 13. Bh2 f5 14. Qe6 Bxc3+ 15. bxc3 f4 16. Bd3 Ng7 17. Qe4 fxe3 18. Qxe3 Ne8 19. 0-0 Nd7 20. f4 Kg7 21. f5 g5 22. f6+ Ndxf6 23. Qxg5+ Kf7 24. Rae1 Qb6 25. Kh1 Qd8 26. Bf5 Kf8 27. Qh6+ 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.12"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Sevcikova, Lucia"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1517"]
[BlackElo "1750"]
[PlyCount "182"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 0-0 6. e3 b6 7. cxd5 Nxd5 8. Nxd5 exd5 9. Bd3 c5 10. 0-0 c4 11. Bc2 Nc6 12. a3 Bg4 13. h3 Bh5 14. Re1 Bd6 15. Bxd6 Qxd6 16. Rc1 Qf6 17. Ba4 a6 18. Qe2 Bxf3 19. Qxf3 Qxf3 20. gxf3 b5 21. Bc2 a5 22. Rcd1 Rad8 23. Kg2 Rd6 24. f4 f5 25. f3 g6 26. Kg3 Re8 27. h4 Rde6 28. Kf2 Na7 29. Re2 Nc8 30. Rg1 Kf7 31. h5 Nd6 32. Rh1 Kg7 33. h6+ Kf7 34. Rc1 R6e7 35. a4 b4 36. b3 Rc8 37. Rce1 Ne8 38. e4 fxe4 39. fxe4 dxe4 40. Rxe4 Rxe4 41. Rxe4 Nf6 42. Re1 c3 43. Kf3 Rd8 44. Rd1 Ng8 45. f5 Nxh6 46. fxg6+ hxg6 47. Kf4 Rd5 48. Rg1 Nf5 49. Ke4 Rxd4+ 50. Ke5 Rd2 51. Bxf5 gxf5 52. Kxf5 Rf2+ 53. Ke4 Rb2 54. Kd3 Rxb3 55. Rg5 Rb2 56. Rxa5 Rd2+ 57. Ke3 b3 58. Rc5 b2 59. Rxc3 Rd1 60. Rb3 b1Q 61. Rxb1 Rxb1 62. Kd3 Ra1 63. Ke4 Rxa4+ 64. Kd5 Kf6 65. Kc5 Kf5 66. Kd5 Kf4 67. Kc5 Ke3 68. Kb5 Rh4 69. Kc5 Kd3 70. Kb5 Kc3 71. Kc5 Rh5+ 72. Kd6 Kc4 73. Ke6 Kd4 74. Kf6 Ke4 75. Kg6 Ra5 76. Kf6 Rb5 77. Ke6 Rb6+ 78. Kd7 Ke5 79. Kc7 Rh6 80. Kd7 Rg6 81. Kc7 Kd5 82. Kb7 Kc5 83. Kc7 Rg7+ 84. Kd8 Kc6 85. Ke8 Kd6 86. Kf8 Ra7 87. Ke8 Rb7 88. Kf8 Ke6 89. Kg8 Kf6 90. Kh8 Kg6 91. Kg8 Rb8# 0-1

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.11"]
[Round "5"]
[White "Nespora, Tatana"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1290"]
[BlackElo "1517"]
[PlyCount "90"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. b4 e5 3. Nf3 Qc7 4. Bb2 Nc6 5. Bc4 h6 6. 0-0 Nf6 7. Nc3 cxb4 8. Nb5 Qb8 9. Re1 Be7 10. d4 0-0 11. d5 Na5 12. d6 Nxc4 13. dxe7 Re8 14. Bc1 a6 15. Nc3 bxc3 16. Qd3 b5 17. Nh4 Qd6 18. Qg3 Nxe4 19. Qg4 Nf6 20. Qg3 e4 21. Bf4 Qe6 22. Nf3 Nh5 23. Qh4 Nxf4 24. Qxf4 Bb7 25. Nd4 Qe5 26. Qxe5 Nxe5 27. Nf5 Bc6 28. f4 Nc4 29. Rad1 Kh7 30. Nd6 Nxd6 31. Rxd6 Rxe7 32. Re3 Rae8 33. Kf2 Re6 34. Rd1 b4 35. g4 a5 36. Kg3 g5 37. f5 Re5 38. Rd6 Rd5 39. Rxd5 Bxd5 40. h4 Bxa2 41. hxg5 hxg5 42. Re1 d5 43. Rh1+ Kg7 44. Rh5 f6 45. Rh1 d4 0-1

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.10"]
[Round "4"]
[White "Costescu, Mihnea Constantin"]
[Black "Janous, Marek"]
[Result "1-0"]
[ECO "E69"]
[WhiteElo "1517"]
[BlackElo "1505"]
[PlyCount "62"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 exd4 10. Nxd4 Nc5 11. Re1 Re8 12. Bf4 Nh5 13. Be3 a5 14. Qc2 Qe7 15. Rad1 Nf6 16. Bf4 Nh5 17. Nf5 gxf5 18. Bxd6 Qe6 19. Bxc5 Qxc4 20. Be3 fxe4 21. Bxe4 Nf6 22. Bd3 Qe6 23. Bf1 Qf5 24. Qd2 Nd7 25. Bf4 Rxe1 26. Rxe1 Be5 27. Bd3 Bxf4 28. gxf4 Qxh3 29. Re3 Qh4 30. Rg3+ Kf8 31. Bf5 Nf6 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.09"]
[Round "3"]
[White "Handlovsky, Jachym"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B85"]
[WhiteElo "1225"]
[BlackElo "1517"]
[PlyCount "141"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. Be2 Nc6 5. 0-0 Nf6 6. d4 cxd4 7. Nxd4 Qc7 8. Be3 Be7 9. Kh1 d6 10. f4 0-0 11. Qe1 Re8 12. Qg3 Bf8 13. Rf3 Qe7 14. Raf1 Nxd4 15. Bxd4 e5 16. fxe5 Nh5 17. Qf2 Be6 18. Nd5 Qg5 19. Nc7 dxe5 20. Nxe8 Rxe8 21. Rxf7 Nf6 22. Be3 Qg6 23. Rxb7 Nxe4 24. Qe1 Bd5 25. Rc7 Bd6 26. Ra7 Nc5 27. Bf3 e4 28. Qd2 exf3 29. Qxd5+ Kh8 30. Qxf3 Qe6 31. Bxc5 Bxc5 32. Ra8 h6 33. Rxe8+ Qxe8 34. Qf7 Qe5 35. Qf5 Qc7 36. Qf7 Qe5 37. Rf5 Qe1+ 38. Rf1 Qe5 39. Qd7 Qe3 40. Qd8+ Kh7 41. Qd3+ Qxd3 42. cxd3 Kg6 43. g3 Bd4 44. b3 Bf6 45. Kg2 Kf7 46. Kf3 Ke6 47. Ke4 Bb2 48. d4 Kd6 49. Rf5 Ke6 50. Re5+ Kd6 51. Rd5+ Ke6 52. Ra5 Bc3 53. Rxa6+ Ke7 54. Ke5 Kf7 55. a4 Bb4 56. d5 Bc3+ 57. Kd6 Bb4+ 58. Kc7 Bc3 59. d6 Be5 60. Kc8 Bf6 61. d7 h5 62. Rxf6+ gxf6 63. d8Q Kg6 64. a5 Kg5 65. a6 Kg4 66. a7 Kh3 67. a8Q h4 68. gxh4 Kxh4 69. Qe4+ Kg5 70. Qg8+ Kh6 71. Qeg6# 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.08"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Vankova, Marie"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1517"]
[BlackElo "1321"]
[PlyCount "51"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 0-0 6. e3 Nbd7 7. h3 a6 8. a3 dxc4 9. Bxc4 b5 10. Bd3 c5 11. 0-0 Bb7 12. Bg3 Qb6 13. Be2 Rac8 14. Rc1 Rfd8 15. Qb3 Nd5 16. Ne5 cxd4 17. Nxd7 Rxd7 18. Nxd5 Rxd5 19. exd4 Rxd4 20. Rxc8+ Bxc8 21. Qc3 Bb7 22. Be5 Rd7 23. Bxg7 Rc7 24. Qg3 f6 25. Bh6+ Kf7 26. Bh5# 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2018.08.07"]
[Round "1"]
[White "Rybka, Simon"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "1965"]
[BlackElo "1517"]
[PlyCount "55"]
[EventDate "2018.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. a3 Nf6 7. f4 d6 8. g4 e5 9. Nf5 g6 10. fxe5 dxe5 11. Ne3 Nc6 12. g5 Nh5 13. Ned5 Qd6 14. Be2 Nd4 15. Bxh5 gxh5 16. Nf6+ Kd8 17. Be3 Bh6 18. Ncd5 Bg7 19. c3 Bxf6 20. Nxf6 Nb5 21. a4 Ke7 22. axb5 Qxd1+ 23. Kxd1 Be6 24. Kc2 h6 25. h4 hxg5 26. hxg5 h4 27. Rad1 axb5 28. Bc5# 1-0

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.04.03"]
[Round "9"]
[White "Costescu, Mihnea Constantin"]
[Black "Maresanu, Mina Andrei"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "1362"]
[BlackElo "1376"]
[PlyCount "88"]
[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 c6 3. cxd5 cxd5 4. Nf3 Nf6 5. Nc3 e6 6. Bf4 Bd6 7. e3 Bxf4 8. exf4 Qc7 9. Rc1 Nc6 10. Ne5 a6 11. Be2 Bd7 12. 0-0 Qb6 13. Nxc6 Bxc6 14. Qd2 0-0 15. Bd3 Rfe8 16. Bc2 Ne4 17. Bxe4 dxe4 18. d5 Rad8 19. d6 Rd7 20. Rfe1 f5 21. Re3 Red8 22. Rh3 Rxd6 23. Qe2 g6 24. Rg3 Qc7 25. h4 Qg7 26. h5 Kf7 27. Re1 Rd2 28. Qc4 Rxb2 29. Na4 Rd4 30. hxg6+ hxg6 31. Nxb2 Rxc4 32. Nxc4 Kf6 33. Ne5 Be8 34. Rd1 Qc7 35. Kh2 Qc2 36. Rd8 Ke7 37. Rb8 Qc7 38. Ra8 Qd6 39. Kh3 Qc7 40. Kh2 Qb6 41. Re3 Qb2 42. Kg3 Qxa2 43. Ra7 Qd5 44. Rc3 Kf6 1/2-1/2

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.04.02"]
[Round "8"]
[White "Grosu, Tudor"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1093"]
[BlackElo "1362"]
[PlyCount "68"]
[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. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. Be3 Bb4 8. Qd2 Nxe4 9. Qd3 Nxc3 10. bxc3 Qxc3+ 11. Qxc3 Bxc3+ 12. Kd1 Bxa1 13. Nb3 Bf6 14. Bf3 Nc6 15. Ke2 d5 16. Rc1 Ne5 17. Nd4 Bd7 18. Rb1 Nc6 19. c3 e5 20. Nc2 e4 21. Bxe4 dxe4 22. Rxb7 Rb8 23. Rc7 Be5 24. Rxd7 Kxd7 25. Nd4 Nxd4+ 26. cxd4 Bf6 27. g3 Rhc8 28. a3 Rb2+ 29. Kd1 Rcc2 30. a4 Bxd4 31. Bf4 Rxf2 32. Bd2 Rfxd2+ 33. Ke1 e3 34. Kf1 Rb1# 0-1

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.04.01"]
[Round "7"]
[White "Costescu, Mihnea Constantin"]
[Black "Musat, Tudor Mihai"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "1362"]
[BlackElo "1039"]
[PlyCount "117"]
[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 Nf6 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 Bd7 7. Qc2 0-0 8. cxd5 Nxd5 9. Bd3 Nxc3 10. bxc3 Bd6 11. Bxh7+ Kh8 12. Bd3 Re8 13. 0-0 e5 14. Bd2 Qf6 15. Rab1 Rab8 16. e4 exd4 17. Bg5 Qe6 18. cxd4 Nb4 19. d5 Qg4 20. Qc3 Nxa2 21. Qc4 f6 22. Bd2 Qh5 23. e5 fxe5 24. Qh4 Qxh4 25. Nxh4 g5 26. Ng6+ Kg7 27. Rfe1 Kf6 28. h4 gxh4 29. Nxh4 Rh8 30. g3 Rbg8 31. Ng6 Rh5 32. Rb2 Bf5 33. Be2 Rh7 34. Nxe5 Bxe5 35. Rxa2 Bxg3 36. fxg3 Rxg3+ 37. Kf2 Rhg7 38. Bf3 Rh3 39. Bc3+ Kf7 40. Bxg7 Kxg7 41. Rxa7 Rh2+ 42. Bg2 Bh3 43. Rg1 Bc8 44. Rh1 Rxh1 45. Bxh1 Kf7 46. Ra8 Bd7 47. Rb8 b6 48. Rb7 Ke7 49. Rxc7 Kd6 50. Rc6+ Bxc6 51. dxc6 Kc7 52. Ke3 b5 53. Kd4 b4 54. Kc4 b3 55. Kxb3 Kd6 56. Kb4 Kc7 57. Kc5 Kb8 58. Kd6 Kc8 59. c7 1/2-1/2

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.03.31"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Rata, Andrei"]
[Result "0-1"]
[ECO "E16"]
[WhiteElo "1362"]
[BlackElo "1441"]
[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. Nf3 e6 3. c4 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 0-0 6. Nc3 b6 7. g3 Bb7 8. Bg2 d5 9. cxd5 Nxd5 10. 0-0 Nd7 11. Rac1 Rc8 12. Rfd1 Qe7 13. Qe1 Nxc3 14. Qxc3 Bxf3 15. Qxf3 c5 16. Qc3 Nf6 17. e4 Qe8 18. d5 exd5 19. exd5 Rd8 20. Qc4 Rd6 21. b4 cxb4 22. Qxb4 Qd8 23. Qb3 Qd7 24. Rc6 Rd8 25. Bf3 h6 26. Qc4 Qf5 27. Rxd6 Rxd6 28. Kg2 Qd7 29. Qd4 Kf8 30. Qb4 Kg8 31. Qd4 Qf5 32. Qc4 Qd7 33. a4 Kf8 34. Qb5 Kg8 35. Qc4 Qb7 36. Qb4 Qc7 37. Qd2 Qc4 38. Qd4 Qxd4 39. Rxd4 Kf8 40. a5 b5 41. Rb4 a6 42. Kf1 Ke7 43. Rd4 Nd7 44. Ke2 Nc5 45. Rd2 Nb3 46. Ra2 Nc1+ 47. Ke3 Nxa2 0-1

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.03.30"]
[Round "5"]
[White "Busuioc, Stelian Marian"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "1575"]
[BlackElo "1362"]
[PlyCount "85"]
[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. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nf6 7. Qe2 d6 8. c4 Nbd7 9. b3 g6 10. Bb2 Bg7 11. Nd2 0-0 12. Rae1 b6 13. Kh1 Bb7 14. f4 Nc5 15. Bb1 d5 16. cxd5 exd5 17. e5 Nfe4 18. Nxe4 Nxe4 19. Rc1 Qd7 20. Bxe4 dxe4 21. Rfd1 Rfc8 22. Nc6 Qe8 23. Nd4 Bh6 24. Qe3 Qxe5 25. Rf1 Rxc1 26. Bxc1 Qe8 27. Bb2 Bg7 28. Ba3 Bf8 29. Bxf8 Qxf8 30. f5 Rc8 31. f6 h6 32. h3 Kh7 33. Rf4 Qc5 34. Kh2 Qc1 35. Qg3 Qc3 36. Qf2 e3 37. Qh4 g5 38. Qh5 Qc7 39. Kg1 gxf4 40. Nf5 Kg8 41. Qxh6 Qc1+ 42. Kh2 Rc2 43. Qg7# 1-0

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.03.29"]
[Round "4"]
[White "Costescu, Mihnea Constantin"]
[Black "Togan, Teodor Bogdan"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "1362"]
[BlackElo "1557"]
[PlyCount "87"]
[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 Nf6 4. Nc3 Be7 5. Bf4 0-0 6. e3 b6 7. Rc1 c5 8. dxc5 Bxc5 9. cxd5 Nxd5 10. Nxd5 Qxd5 11. a3 Qxd1+ 12. Rxd1 Nd7 13. Bb5 Nb8 14. Ke2 a6 15. Bd3 Bb7 16. Rc1 a5 17. Rhd1 Nc6 18. Bb5 Na7 19. Ba4 Bd5 20. Nd2 Rfd8 21. f3 Rac8 22. Nb3 Bxb3 23. Bxb3 h6 24. a4 Nc6 25. Bc4 Nb4 26. Bg3 Kf8 27. Bh4 g5 28. Bg3 Ke7 29. h4 Rxd1 30. Rxd1 Bxe3 31. Bd6+ Kf6 32. hxg5+ hxg5 33. Bxb4 axb4 34. Bxe6 Kxe6 35. Kxe3 Rc2 36. Rd2 Rxd2 37. Kxd2 f5 38. g3 Kd6 39. Kd3 Kd5 40. b3 Kc5 41. Ke3 g4 42. f4 Kd5 43. Kd3 Kc5 44. Ke3 1/2-1/2

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.03.29"]
[Round "3"]
[White "Soare, Andrei"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1142"]
[BlackElo "1362"]
[PlyCount "68"]
[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. e4 c5 2. d4 cxd4 3. c3 Nc6 4. cxd4 d5 5. exd5 Qxd5 6. Nf3 Bf5 7. Nc3 Qe6+ 8. Be2 Rd8 9. 0-0 Nf6 10. Be3 g6 11. Qd2 Bg7 12. Rfd1 0-0 13. b3 a6 14. Bc4 Qc8 15. h3 b5 16. Bd3 Bxd3 17. Qxd3 Qa8 18. Qe2 Nb4 19. a3 Nbd5 20. Nxd5 Nxd5 21. Rac1 e6 22. Ne5 Rd6 23. Nd3 Rfd8 24. Nc5 h5 25. b4 Nxe3 26. fxe3 Qd5 27. Rc2 e5 28. Rcd2 exd4 29. Qd3 Kh7 30. Kh1 Qc4 31. Nb7 dxe3 32. Nxd6 exd2 33. Nxc4 Rxd3 34. Nxd2 Bh6 0-1

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.03.28"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Nicoara, Vlad Mihnea"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "1362"]
[BlackElo "1101"]
[PlyCount "43"]
[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 Nf6 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 Bxc3+ 7. bxc3 Bd7 8. Qc2 b6 9. cxd5 Nxd5 10. Bd3 Nf6 11. Ba3 h6 12. 0-0 a5 13. Rab1 Bc8 14. Rfd1 Bb7 15. Bb5 Nd7 16. d5 Na7 17. dxe6 c5 18. exf7+ Kf8 19. Rxd7 Qc8 20. Ne5 g5 21. Ng6+ Kg7 22. f8Q# 1-0

[Event "ROM-ch U12"]
[Site "Calimanesti"]
[Date "2018.03.27"]
[Round "1"]
[White "Anghel, Iulian Mihai"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1911"]
[BlackElo "1362"]
[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. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. 0-0 Nxb5 7. Nxb5 a6 8. Nc3 d6 9. d3 Nf6 10. Qe1 0-0 11. Qh4 b5 12. e5 dxe5 13. fxe5 Ng4 14. Re1 h5 15. h3 Nh6 16. Qf2 c4 17. dxc4 bxc4 18. Qc5 Be6 19. Bg5 Re8 20. Rad1 Qb8 21. Na4 Qb7 22. Nd4 Rac8 23. Qb6 Qxb6 24. Nxb6 Rb8 25. Nxe6 Rxb6 26. Nc7 Rc8 27. Nd5 Rcb8 28. Nxb6 Rxb6 29. b3 cxb3 30. cxb3 Re6 31. Rd7 f6 32. Be3 Nf5 33. Bc5 fxe5 34. a4 e4 35. g4 hxg4 36. hxg4 Nh4 37. Kf2 Kf7 38. Ra7 Nf3 39. Rd1 Bf6 40. b4 Bh4+ 41. Ke2 Ne5 42. b5 Nd3 43. Be3 Nb2 44. Ra1 Bf6 45. Rxa6 Rxa6 46. bxa6 Nd3 47. a7 Bxa1 48. a8Q Ne5 49. Qd5+ Kf6 50. g5+ Kf5 51. a5 e6 52. Qb7 Nf3 53. Qf7+ Ke5 54. Qf6+ Kd5 55. Qxa1 e5 56. a6 Nd4+ 57. Bxd4 exd4 58. a7 d3+ 1-0

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.14"]
[Round "9"]
[White "Menlibai, Deniz Edvin"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "1575"]
[BlackElo "1468"]
[PlyCount "67"]
[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 c5 2. c4 e5 3. Nc3 d6 4. g3 Nc6 5. Bg2 g6 6. Nge2 Bg7 7. 0-0 Nge7 8. d3 0-0 9. f4 exf4 10. Bxf4 Bg4 11. h3 Bxe2 12. Qxe2 Be5 13. Qd2 Bxf4 14. Rxf4 Nd4 15. Raf1 Nec6 16. Nd5 Ne5 17. Nf6+ Kg7 18. Rh4 h5 19. Qe3 Rh8 20. g4 hxg4 21. Rxh8 Qxh8 22. hxg4 Qh4 23. Rf4 Qg5 24. Nd5 Nxg4 25. Rxf7+ Kh6 26. Rh7+ Kxh7 27. Qxg5 Ne5 28. Qe7+ Kh6 29. Qxd6 Nxd3 30. Ne7 Ne2+ 31. Kf1 Nef4 32. Qf6 b6 33. Nf5+ Kh7 34. Qg7# 1-0

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.13"]
[Round "8"]
[White "Costescu, Mihnea Constantin"]
[Black "Theocharous, Vassilis"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "1468"]
[BlackElo "1315"]
[PlyCount "37"]
[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 Nf6 4. Nc3 c6 5. e3 Bd6 6. Bd3 dxc4 7. Bxc4 Nbd7 8. Bd3 0-0 9. Qc2 e5 10. 0-0 Qe7 11. Ng5 h6 12. Nge4 exd4 13. exd4 Nxe4 14. Nxe4 Nf6 15. h3 Re8 16. Nxd6 Qxd6 17. Be3 Nd5 18. Rae1 Nxe3 19. fxe3 1-0

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.12"]
[Round "7"]
[White "Mazilu, Stefan Fabian"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1194"]
[BlackElo "1468"]
[PlyCount "59"]
[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. c4 c5 2. Nc3 e6 3. g3 a6 4. Bg2 Qc7 5. Nf3 Nf6 6. 0-0 d6 7. b3 Nbd7 8. d4 Be7 9. d5 0-0 10. dxe6 fxe6 11. Ng5 Nb6 12. Bh3 e5 13. Be6+ Kh8 14. Nf7+ Rxf7 15. Bxf7 Qd7 16. f3 Qh3 17. Bg5 Qd7 18. Bxf6 Bxf6 19. Bd5 Nxd5 20. Nxd5 Bd8 21. f4 exf4 22. Rxf4 h6 23. Qd3 g5 24. Rf8+ Kg7 25. Raf1 Ba5 26. Qc2 Bd8 27. Qb2+ Kg6 28. Rg8+ Kh5 29. Nf6+ Bxf6 30. Qxf6 1-0

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.11"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Heldenbergh, Nils"]
[Result "0-1"]
[ECO "E21"]
[WhiteElo "1468"]
[BlackElo "1592"]
[PlyCount "70"]
[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 e6 2. c4 Nf6 3. Nf3 b6 4. Nc3 Bb4 5. g3 Ba6 6. Qa4 Bxc3+ 7. bxc3 Bb7 8. Ba3 Ne4 9. Qc2 c5 10. Bg2 Qc7 11. 0-0 0-0 12. Rad1 d6 13. Bb2 Nd7 14. d5 Nef6 15. Ng5 e5 16. f4 Rae8 17. Bc1 h6 18. fxe5 Rxe5 19. Ne4 Rfe8 20. Rf4 Nxe4 21. Rxe4 Bc8 22. Bf4 Rxe4 23. Bxe4 Nf6 24. Bd3 Qe7 25. Rf1 Bg4 26. Qd2 Ne4 27. Qc2 Ng5 28. Bc1 Bxe2 29. Bxg5 hxg5 30. Bh7+ Kh8 31. Rf2 Bxc4 32. Qf5 g6 33. Qh3 Qe1+ 34. Kg2 Bxd5+ 35. Rf3 Re2# 0-1

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.09"]
[Round "5"]
[White "Sipos, Sony Laurentiu"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1301"]
[BlackElo "1468"]
[PlyCount "40"]
[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. Bf4 c5 3. c3 Qb6 4. Qb3 Qxb3 5. axb3 cxd4 6. cxd4 Nc6 7. e3 Bf5 8. Nc3 e6 9. Nb5 Bb4+ 10. Kd1 Kd7 11. h3 Nf6 12. Nf3 Ne4 13. Ke2 a6 14. Na3 f6 15. g4 Bg6 16. h4 Na5 17. Rc1 Rac8 18. g5 fxg5 19. hxg5 Nxb3 20. Rxc8 Rxc8 0-1

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.08"]
[Round "4"]
[White "Costescu, Mihnea Constantin"]
[Black "Qojle, Albion"]
[Result "1/2-1/2"]
[ECO "E67"]
[WhiteElo "1468"]
[BlackElo "1112"]
[PlyCount "43"]
[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. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 c6 7. Nc3 Nbd7 8. h3 h6 9. Qc2 Qc7 10. a4 a5 11. e4 e5 12. d5 Rd8 13. Be3 Nb8 14. Nd2 Na6 15. Nb3 Nb4 16. Qd2 Na6 17. Bxh6 Bd7 18. Be3 c5 19. Nb5 Bxb5 20. axb5 Nb4 21. f4 Nd7 22. Nc1 1/2-1/2

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.07"]
[Round "3"]
[White "Binz, Lennox"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "1596"]
[BlackElo "1468"]
[PlyCount "107"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. 0-0 d6 8. Be3 Nbd7 9. f4 Nc5 10. Qf3 Be7 11. Rae1 0-0 12. Kh1 Rd8 13. Qg3 e5 14. Nf3 Nh5 15. Qf2 exf4 16. Bd4 Be6 17. Nh4 Qd7 18. Nf5 Bxf5 19. Bxc5 Bxe4 20. Rxe4 dxc5 21. Qe2 Qc6 22. Qxh5 g6 23. Qe2 Bd6 24. Bc4 Rac8 25. Nd5 b5 26. Nf6+ Kg7 27. Bd5 Qb6 28. Ne8+ Kf8 29. Nxd6 Qxd6 30. c4 h6 31. Rexf4 f5 32. Re4 Re8 33. Re6 Qd7 34. Re1 Rxe6 35. Bxe6 Qc7 36. Bxc8 Qxc8 37. Qe7+ Kg8 38. Qe8+ Qxe8 39. Rxe8+ Kf7 40. Re5 bxc4 41. Rxc5 f4 42. Rxc4 g5 43. Rc6 h5 44. Rxa6 g4 45. b4 h4 46. b5 h3 47. gxh3 gxh3 48. b6 f3 49. Kg1 Ke7 50. b7 f2+ 51. Kxf2 Kd7 52. b8Q Ke7 53. Qb7+ Kd8 54. Ra8# 1-0

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.06"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Mastalos, Iannis Mihai"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1468"]
[BlackElo "1691"]
[PlyCount "92"]
[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. Nf3 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Bb5+ Nbd7 7. 0-0 0-0 8. h3 a6 9. Bd3 b5 10. a3 c4 11. Be2 Nc5 12. Nd2 Qb6 13. Bf3 Bd7 14. Re1 Rad8 15. Nf1 e5 16. Be3 Qc7 17. Nd2 Rb8 18. b3 cxb3 19. cxb3 Nd3 20. Na2 Nxe1 21. Qxe1 a5 22. Rc1 Qb7 23. Be2 Rfc8 24. Ra1 Rc7 25. Bd3 Nh5 26. Nf3 Rbc8 27. Qxa5 Nf4 28. Bb1 Ne2+ 29. Kh1 Nd4 30. Qb4 Nxf3 31. gxf3 Bf8 32. Kg2 Rb8 33. Bd3 Qc8 34. Qd2 Bxh3+ 35. Kg3 f5 36. exf5 gxf5 37. f4 Bg4 38. f3 Bxf3 39. fxe5 dxe5 40. Rf1 f4+ 41. Kxf3 Qh3+ 42. Ke2 fxe3 43. Qe1 Qg4+ 44. Kxe3 Bh6+ 45. Kf2 Rf7+ 46. Bf5 Rxf5# 0-1

[Event "EU-ch U12 27th"]
[Site "Mamaia"]
[Date "2017.09.05"]
[Round "1"]
[White "Shehzad, Shazil Khan"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "1845"]
[BlackElo "1468"]
[PlyCount "61"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nf6 7. Qe2 d6 8. c4 Nbd7 9. b3 Be7 10. Nc3 0-0 11. f4 Nc5 12. Bc2 Ncd7 13. Bb2 b6 14. Rac1 Bb7 15. f5 Ne5 16. fxe6 Bc8 17. exf7+ Rxf7 18. Nd5 Qc5 19. b4 Qxc4 20. Nxe7+ Rxe7 21. Bb3 Be6 22. Bxc4 Bxc4 23. Qd1 Rae8 24. Nf5 Rd7 25. Rf3 Nxf3+ 26. Qxf3 Bxa2 27. Nxg7 Rxg7 28. Qxf6 Ree7 29. Rf1 Ref7 30. Qd8+ Rf8 31. Qxf8# 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.27"]
[Round "9"]
[White "Toncheva, Nadya"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "D26"]
[WhiteElo "1911"]
[BlackElo "1355"]
[PlyCount "71"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 a6 5. Nf3 e6 6. 0-0 Nbd7 7. a4 c5 8. dxc5 Bxc5 9. b3 0-0 10. Qe2 Qc7 11. Bb2 Bd6 12. Nbd2 Ne5 13. Rac1 Nxc4 14. Nxc4 Be7 15. Bd4 Qb8 16. Nb6 Bd7 17. Bxf6 Qd8 18. Bxe7 Qxe7 19. Nxa8 Rxa8 20. Rfd1 Bc6 21. Nd4 Bd5 22. e4 Bc6 23. Nxc6 bxc6 24. Rxc6 Qb4 25. Rxa6 Rf8 26. Qc4 Qb7 27. Rad6 Qb8 28. b4 h6 29. h3 Kh7 30. b5 Rc8 31. Qd3 Qa7 32. e5+ g6 33. Rd7 Qxa4 34. Rxf7+ Kh8 35. Qd8+ Rxd8 36. Rxd8# 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.26"]
[Round "8"]
[White "Costescu, Mihnea Constantin"]
[Black "Kostov, Deyan Samuil"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1355"]
[BlackElo "1624"]
[PlyCount "78"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[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 Nf6 4. Nc3 Be7 5. Bf4 a6 6. e3 Nbd7 7. Bd3 0-0 8. Qc2 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. 0-0-0 Rc8 12. Kb1 c5 13. Qe2 c4 14. Bc2 b4 15. Na4 Nd5 16. Ne5 Nxe5 17. Bxe5 g6 18. h4 f6 19. Bg3 Qa5 20. h5 g5 21. h6 Bc6 22. e4 Bxa4 23. Bxa4 Nc3+ 24. bxc3 Qxa4 25. d5 bxc3 26. dxe6 Rb8+ 27. Bxb8 Rxb8+ 28. Ka1 Rb2 29. Qxb2 cxb2+ 30. Kb1 c3 31. Rd3 Qxe4 32. Rhd1 Bb4 33. f3 Qxe6 34. Rd8+ Kf7 35. R8d7+ Kg6 36. R7d4 Qe2 37. R1d3 Ba3 38. Rxc3 Qe1+ 39. Kc2 b1Q# 0-1

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.25"]
[Round "7"]
[White "Brnusak, Tomas"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "A32"]
[WhiteElo "1790"]
[BlackElo "1355"]
[PlyCount "100"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. e3 e6 7. Be2 Be7 8. 0-0 0-0 9. Qc2 d6 10. b3 Nbd7 11. Bb2 b6 12. Rfd1 Bb7 13. Bf3 Rac8 14. Qe2 Ne5 15. Bxb7 Qxb7 16. Rac1 Rfd8 17. e4 Ned7 18. Kh1 Nc5 19. f3 Nh5 20. g3 Nf6 21. Kg2 h5 22. Qe3 h4 23. Rc2 Qb8 24. Re2 Ncd7 25. g4 Ne5 26. h3 Ng6 27. Rde1 Nh7 28. Rc2 Bg5 29. Qf2 Nf4+ 30. Kh2 Nd3 31. Qe2 d5+ 32. Kh1 Nxe1 33. Qxe1 dxc4 34. Nde2 cxb3 35. axb3 Nf6 36. Qf1 Rd2 37. Rxd2 Bxd2 38. Nb1 Bf4 39. Na3 Be5 40. Bc1 Qc7 41. Bg5 b5 42. Bxh4 Bb2 43. Nb1 Qc2 44. b4 Qd3 45. Bg5 Rc2 46. Ng3 Nxe4 47. fxe4 Qxg3 48. Bd2 Be5 49. Qe2 Qxh3+ 50. Kg1 Bd4+ 0-1

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.24"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Sustek, Adam"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "1355"]
[BlackElo "1442"]
[PlyCount "77"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb7 5. Bf4 Bb4 6. e3 Ne4 7. Rc1 c5 8. Bd3 Bxc3+ 9. bxc3 Nf6 10. 0-0 0-0 11. Bd6 Re8 12. dxc5 bxc5 13. Bxc5 Qc7 14. Bd6 Qc6 15. Bg3 e5 16. Be2 d6 17. Rb1 Nbd7 18. Qc2 h5 19. h4 Nc5 20. Rfd1 Ng4 21. Ne1 Ne4 22. c5 a6 23. Bf3 f5 24. cxd6 Bc8 25. Qb3+ Be6 26. Qc2 Red8 27. Rbc1 Rxd6 28. Bxe4 fxe4 29. Rxd6 Qxd6 30. Qxe4 Rc8 31. f3 Nf6 32. Qxe5 Qxe5 33. Bxe5 Bxa2 34. Ra1 Bc4 35. Nc2 Bb5 36. Nb4 Ra8 37. Bxf6 gxf6 38. Nd5 Kf7 39. Nc7 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.23"]
[Round "5"]
[White "Rejniak, Zuzanna"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "1650"]
[BlackElo "1355"]
[PlyCount "139"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. e3 Bf5 4. Nc3 e6 5. Be2 Nf6 6. d4 Nbd7 7. 0-0 Be7 8. a3 0-0 9. b3 a6 10. Bb2 Qc7 11. Rc1 dxc4 12. bxc4 Rfd8 13. Qb3 Nb6 14. Rfd1 Rac8 15. a4 a5 16. h3 Bb4 17. Na2 Be7 18. Ba3 Bxa3 19. Qxa3 c5 20. dxc5 Rxd1+ 21. Rxd1 Nbd7 22. Nd4 Be4 23. f3 Bg6 24. Nb5 Qxc5 25. Qxc5 Nxc5 26. Nac3 h6 27. e4 Bh5 28. Kf2 Bg6 29. Rd6 Ne8 30. Rd1 Nc7 31. Rb1 Nxb5 32. Rxb5 f6 33. Rb2 Be8 34. Ra2 Na6 35. Nb5 Nb4 36. Rd2 Bc6 37. Na7 Re8 38. Nxc6 Nxc6 39. Rd7 Rb8 40. c5 Kf8 41. Bb5 Ne5 42. Rd6 Ke7 43. f4 Nf7 44. Rd7+ Kf8 45. g3 e5 46. Bc4 Nd8 47. fxe5 fxe5 48. Bd5 Rc8 49. Kf3 g6 50. h4 Nc6 51. Rxb7 Nd4+ 52. Ke3 Rxc5 53. Kd3 Nc6 54. Bxc6 Rxc6 55. Rb5 Rd6+ 56. Ke3 Rd4 57. Rxa5 Ke7 58. Rxe5+ Kd6 59. Kxd4 h5 60. a5 Kc6 61. Rd5 Kb7 62. e5 g5 63. e6 gxh4 64. gxh4 Ka6 65. e7 Kb7 66. e8Q Ka7 67. Qe7+ Ka6 68. Qe6+ Kb7 69. Rd7+ Kc8 70. Qe8# 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.22"]
[Round "4"]
[White "Lovcican, Tomas"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "E10"]
[WhiteElo "1553"]
[BlackElo "1355"]
[PlyCount "68"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 e6 4. e3 a6 5. d4 cxd4 6. exd4 d5 7. Bd3 Be7 8. 0-0 0-0 9. h3 dxc4 10. Bxc4 b5 11. Bd3 Bb7 12. Ne5 Nc6 13. Nxc6 Bxc6 14. a3 Qd7 15. Be3 Rfd8 16. Qc2 h6 17. Rac1 Rac8 18. Qd2 Bf8 19. f4 Nd5 20. Nxd5 Qxd5 21. b4 a5 22. Rf2 axb4 23. axb4 Be7 24. Rcf1 Bh4 25. Re2 Ra8 26. f5 e5 27. f6 Bxf6 28. Bxh6 Qxd4+ 29. Re3 e4 30. Bf4 exd3 31. Kh1 Qd5 32. Rg3 Ra2 33. Qd1 Rxg2 34. Rgf3 Ra2 0-1

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.21"]
[Round "3"]
[White "Costescu, Mihnea Constantin"]
[Black "Sosovickova, Jana"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "1355"]
[BlackElo "1505"]
[PlyCount "97"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Bxe4 Nf6 10. Bd3 0-0 11. 0-0 b6 12. Bg5 h6 13. Bh4 Bb7 14. Qe2 c5 15. dxc5 Bxc5 16. Rad1 Qe7 17. a3 a5 18. Bb1 Rac8 19. Qc2 g6 20. Qc3 Kg7 21. Ne5 Bd6 22. Bxf6+ Qxf6 23. Rxd6 Rfd8 24. Rxd8 Rxd8 25. Qe3 Rd6 26. Ng4 Qxb2 27. Qxh6+ Kg8 28. Bxg6 Qg7 29. Bh7+ Kf8 30. Qxg7+ Kxg7 31. Bc2 Rd4 32. Ne3 f5 33. Bxf5 Kf6 34. Bc2 Rd7 35. h3 Rg7 36. Rb1 Bc8 37. Rxb6 Rg5 38. Rb5 e5 39. Rxa5 Bxh3 40. Kh2 Bc8 41. Ra8 Bd7 42. Rf8+ Ke7 43. Rh8 Bc6 44. Nd5+ Kf7 45. Rh7+ Kf8 46. g3 Rg4 47. Rh4 Rg7 48. Nb4 Bb7 49. Be4 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.20"]
[Round "2"]
[White "Sevcikova, Lucia"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "1606"]
[BlackElo "1355"]
[PlyCount "143"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 c5 3. e3 Bf5 4. Nf3 a6 5. d4 cxd4 6. Nxd4 Bg6 7. Be2 Nf6 8. Nd2 e6 9. 0-0 Bd6 10. c4 0-0 11. Rc1 Nc6 12. cxd5 Nxd4 13. Bxd4 Nxd5 14. Nc4 Be7 15. Bf3 Rc8 16. Bxd5 exd5 17. Ne5 Be4 18. Bb2 Bf6 19. Rxc8 Qxc8 20. f3 Qc2 21. fxe4 Qxb2 22. Nd7 Re8 23. Nxf6+ gxf6 24. Qxd5 Qxa2 25. Rxf6 Qb1+ 26. Rf1 Qxe4 27. Qxf7+ Kh8 28. Re1 Rg8 29. Qf6+ Rg7 30. Qd8+ Rg8 31. Qd4+ Qxd4 32. exd4 Rd8 33. Rd1 Kg7 34. Kf2 Kf6 35. Ke3 Ke6 36. Ke4 Rd5 37. Rf1 Rb5 38. Rf3 Rd5 39. Rf6+ Kxf6 40. Kxd5 Ke7 41. Kc5 Kd7 42. g4 Kc7 43. h4 b6+ 44. Kc4 Kd6 45. g5 b5+ 46. Kb4 Kd5 47. Ka5 Kxd4 48. Kxa6 Ke4 49. Kxb5 Kf4 50. Ka6 Kg4 51. b4 Kxh4 52. b5 Kxg5 53. b6 h5 54. b7 Kh4 55. b8Q Kh3 56. Qb1 Kh2 57. Qe1 Kh3 58. Qh1+ Kg4 59. Kb5 h4 60. Qh2 h3 61. Kc4 Kh4 62. Kd4 Kg4 63. Ke4 Kh4 64. Kf4 Kh5 65. Qxh3+ Kg6 66. Qg4+ Kf6 67. Qf5+ Ke7 68. Ke5 Kd8 69. Qh7 Kc8 70. Kd6 Kb8 71. Kc6 Ka8 72. Qb7# 1-0

[Event "EU Union-ch U12"]
[Site "Kouty nad Desnou"]
[Date "2017.08.19"]
[Round "1"]
[White "Costescu, Mihnea Constantin"]
[Black "Indriunas, Matas"]
[Result "1/2-1/2"]
[ECO "E65"]
[WhiteElo "1355"]
[BlackElo "1829"]
[PlyCount "65"]
[EventDate "2017.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 180 Extra"]
[Source "ChessBase"]
[SourceDate "2017.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 c5 8. d5 Rb8 9. Bd2 a6 10. a4 b6 11. Qc1 Re8 12. Bf4 Ng4 13. h3 Nge5 14. b3 Nxf3+ 15. Bxf3 b5 16. Rb1 bxc4 17. bxc4 Rxb1 18. Nxb1 Qa5 19. Qe3 Ne5 20. Qb3 Nxf3+ 21. exf3 Bxh3 22. Bd2 Qc7 23. Re1 Bf5 24. g4 Rb8 25. Rxe7 Rxb3 26. Rxc7 Rxb1+ 27. Kg2 Bxg4 28. fxg4 h5 29. gxh5 gxh5 30. Bf4 Rb4 31. Bxd6 Rxc4 32. Rxc5 Rxa4 33. Be7 1/2-1/2

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.09"]
[Round "9"]
[White "Miculit, Vlad Cristian"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "D20"]
[WhiteElo "1431"]
[BlackElo "1245"]
[PlyCount "78"]
[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. c4 dxc4 3. Nc3 Nf6 4. e4 e5 5. d5 b5 6. a3 a6 7. Bg5 Nbd7 8. Nf3 Be7 9. a4 b4 10. Na2 Nxe4 11. Bxe7 Qxe7 12. Bxc4 0-0 13. 0-0 Nb6 14. Qb3 a5 15. Rfe1 Nc5 16. Qc2 Nbd7 17. Bb5 b3 18. Qc3 e4 19. Nc1 Qd6 20. Nd4 Nb6 21. Ncxb3 Nxb3 22. Qxb3 Nxd5 23. Bc6 Be6 24. Bxa8 Rxa8 25. Nxe6 Qxe6 26. Qc2 f5 27. Rad1 Rc8 28. Qc4 c6 29. Qa6 Nf4 30. Rd2 Re8 31. Qxa5 Qg6 32. g3 Nh3+ 33. Kf1 Ng5 34. Rc1 Nf3 35. Rdc2 Qh5 36. h4 Nd4 37. Rc5 Qe2+ 38. Kg1 Nb3 39. Qb4 Nxc1 0-1

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.08"]
[Round "8"]
[White "Costescu, Mihnea Constantin"]
[Black "Oprea, Rares Andrei"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "1245"]
[BlackElo "1505"]
[PlyCount "91"]
[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 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 e6 6. c3 Nge7 7. d4 cxd4 8. cxd4 d5 9. exd5 Nxd5 10. Ne5 Qb6 11. Bxc6+ bxc6 12. Na3 0-0 13. Nac4 Qc7 14. Bd2 Ba6 15. Ba5 Qd7 16. Nxd7 Bxc4 17. Nxf8 Rxf8 18. b3 Ba6 19. Rc1 Rc8 20. a4 Nf4 21. Re3 Bh6 22. Rc2 Nd5 23. Rf3 Bg7 24. b4 Rb8 25. Rb3 Nf4 26. Rxc6 Bb7 27. Rd6 Bf6 28. h3 Nxg2 29. Qg4 Nh4 30. Qf4 Nf5 31. Rxe6 Rc8 32. Qxf5 Bh4 33. Rxg6+ hxg6 34. Qxc8+ Bxc8 35. Rc3 Bd7 36. b5 Kf8 37. d5 Ke7 38. Bb4+ Kd8 39. d6 Bf6 40. Rf3 Bf5 41. a5 Bd4 42. Rf4 Be5 43. Rc4 f6 44. b6 axb6 45. axb6 Bd4 46. Rc7 1-0

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.07"]
[Round "7"]
[White "Buga, Denis Ionut"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1026"]
[BlackElo "1245"]
[PlyCount "54"]
[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 c5 2. Nc3 e6 3. Bc4 a6 4. a4 Nc6 5. Nf3 Nf6 6. d3 Be7 7. h3 d5 8. Ba2 b5 9. d4 dxe4 10. Ng5 cxd4 11. Ncxe4 0-0 12. Nxf6+ Bxf6 13. h4 bxa4 14. Qd3 g6 15. h5 Bxg5 16. Bxg5 Qxg5 17. hxg6 fxg6 18. Qh3 Qe5+ 19. Kd1 Ra7 20. Re1 Qd6 21. Bxe6+ Bxe6 22. Rxe6 Qc5 23. Re2 Re7 24. Rxe7 Qxe7 25. Rxa4 Rxf2 26. g3 Qe2+ 27. Kc1 Qxc2# 0-1

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.06"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Iordache, Alexandru Cristian"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "1245"]
[BlackElo "1296"]
[PlyCount "88"]
[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 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. g3 0-0 6. Bg2 Bxd2+ 7. Qxd2 d6 8. 0-0 Nc6 9. Nc3 d5 10. cxd5 exd5 11. Rfe1 Bf5 12. a3 Qd7 13. Ne5 Qe6 14. Nf3 h6 15. Nb5 Rac8 16. Nc3 Bh3 17. b4 a6 18. Rac1 Bxg2 19. Kxg2 Ne4 20. Nxe4 Qxe4 21. Kg1 Rfe8 22. Qd1 Re6 23. e3 Rf6 24. Nh4 Rd8 25. Ng2 Qf5 26. Qe2 Re8 27. Nf4 Nxd4 28. Qd2 Nc6 29. Qxd5 Re5 30. Qd2 Rd6 31. Qb2 Re7 32. h4 g5 33. Ng2 Ne5 34. Rf1 Qh3 35. f4 Nd3 36. Qc2 Nxc1 37. Qxc1 Qxg3 38. hxg5 hxg5 39. Qc5 gxf4 40. exf4 Rg6 41. Qd5 Re2 42. Qd8+ Kh7 43. Qd5 Rxg2+ 44. Kh1 Qh2# 0-1

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.05"]
[Round "4"]
[White "Costescu, Mihnea Constantin"]
[Black "Bantescu, Dan"]
[Result "0-1"]
[ECO "B17"]
[WhiteElo "1245"]
[BlackElo "1366"]
[PlyCount "108"]
[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. Nd2 dxe4 4. Nxe4 Nd7 5. Ne2 Ngf6 6. N4g3 e6 7. Nf4 Bd6 8. Bd3 Qc7 9. Nfe2 c5 10. c3 b6 11. 0-0 Bb7 12. Be3 h5 13. dxc5 Nxc5 14. Bb5+ Ncd7 15. h4 a6 16. Ba4 b5 17. Bb3 Ng4 18. Bd2 Bc5 19. a4 Ndf6 20. Nd4 Ne4 21. Qc1 Bxd4 22. cxd4 Qxc1 23. Bxc1 Ngxf2 24. Rxf2 Nxg3 25. Bf4 Nf5 26. Rd2 Nxh4 27. Rc2 0-0 28. Bd6 Rfd8 29. Bc5 Nf5 30. Rd1 Rac8 31. Rdd2 Ne3 32. Rc1 Bd5 33. Rd3 Nc4 34. Ba3 Nxa3 35. Rxc8 Rxc8 36. Bxd5 exd5 37. Rxa3 b4 38. Rb3 a5 39. Kf2 Rc2+ 40. Kf3 Rd2 41. g3 Rxd4 42. Re3 Rd2 43. b3 d4 44. Re8+ Kh7 45. Ra8 Rd3+ 46. Ke4 Rxb3 47. Kxd4 Rxg3 48. Rxa5 g6 49. Ra7 Kg7 50. Kc4 Rg4+ 51. Kb3 h4 52. a5 h3 53. a6 h2 54. Rb7 h1Q 0-1

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.05"]
[Round "5"]
[White "Dobre, Daniel Alexandru"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1165"]
[BlackElo "1245"]
[PlyCount "58"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Qf3 Nf6 7. Bf4 d6 8. 0-0-0 Nbd7 9. Bd3 e5 10. Nf5 exf4 11. Qxf4 g6 12. Ne3 Bg7 13. Bc4 Ne5 14. Ncd5 Nxd5 15. Bxd5 0-0 16. h4 Be6 17. g4 Rac8 18. Rhg1 Bxd5 19. exd5 Qe7 20. h5 b5 21. Rg2 Nc4 22. Nxc4 Rxc4 23. Qd2 Rfc8 24. c3 b4 25. Rg3 bxc3 26. bxc3 Bxc3 27. Rxc3 Rxc3+ 28. Kb1 Qb7+ 29. Ka1 Rc2 0-1

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.04"]
[Round "3"]
[White "Teodorescu, Luca Nicolae"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1406"]
[BlackElo "1245"]
[PlyCount "115"]
[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 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Nb6 7. Nc3 a6 8. d5 Na7 9. Be3 d6 10. Be2 g6 11. Qd4 Nd7 12. exd6 Nf6 13. dxe7 Bxe7 14. Bg5 0-0 15. 0-0 Bf5 16. Be3 Nc8 17. Rfd1 Nd6 18. Rac1 Nd7 19. Qd2 b5 20. a3 Re8 21. Nd4 Ne5 22. Nxf5 Nxf5 23. Bf4 Bd6 24. Bxe5 Bxe5 25. Bf3 Rb8 26. b4 Nd4 27. Qd3 Rc8 28. Ne4 Rxc1 29. Rxc1 f5 30. Nc5 Qd6 31. h3 Rc8 32. Rd1 Rc7 33. Re1 Re7 34. Rd1 Rc7 35. g3 Kg7 36. Bg2 Re7 37. Nb3 Nxb3 38. Qxb3 Rd7 39. f4 Qb6+ 40. Kh1 Bf6 41. Re1 Qd6 42. Re6 Qc7 43. Rxa6 Qc1+ 44. Kh2 Bd4 45. h4 Qd2 46. Qf3 Rxd5 47. Qxd5 Bg1+ 48. Kxg1 Qxd5 49. Bxd5 Kh6 50. Ra7 g5 51. hxg5+ Kh5 52. Bf7+ Kg4 53. Kg2 h5 54. Bg6 h4 55. Rh7 h3+ 56. Kf2 h2 57. Bh5+ Kh3 58. Bf3# 1-0

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.03"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Ungureanu, Alexandru Daniel"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "1245"]
[BlackElo "1001"]
[PlyCount "90"]
[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 e6 2. c4 d5 3. Nf3 dxc4 4. Qa4+ c6 5. Qxc4 b5 6. Qc2 Bb4+ 7. Nc3 Nf6 8. e3 0-0 9. Bd3 g6 10. 0-0 Bd6 11. Bd2 Ng4 12. Ne4 Bc7 13. h3 Ba6 14. hxg4 f5 15. gxf5 exf5 16. Nc5 Bb7 17. Nxb7 Qd5 18. Qb3 Rf7 19. Qxd5 cxd5 20. Nc5 Bd8 21. Ne5 Rg7 22. Bxb5 Bc7 23. Ncd3 a6 24. Ba4 Kh8 25. Rac1 g5 26. Rc2 a5 27. Rfc1 g4 28. Rxc7 Na6 29. Rc8+ Rxc8 30. Rxc8+ Rg8 31. Rxg8+ Kxg8 32. Bxa5 g3 33. Bb5 Nb8 34. Bc7 f4 35. a4 gxf2+ 36. Kxf2 h5 37. a5 Kh7 38. Bxb8 Kh6 39. a6 Kg5 40. Bd6 h4 41. Bd7 Kh5 42. Be7 fxe3+ 43. Kxe3 h3 44. gxh3 Kh6 45. Bf6 Kh7 1-0

[Event "ROM-ch U12"]
[Site "Baile Felix"]
[Date "2017.02.02"]
[Round "1"]
[White "Constandache, Vlad Ciprian"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "1588"]
[BlackElo "1245"]
[PlyCount "44"]
[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. c4 dxc4 3. e4 e5 4. d5 Nf6 5. Nc3 Bb4 6. Qa4+ Bd7 7. Qxb4 a5 8. Qxc4 0-0 9. Nge2 Na6 10. a3 Rb8 11. Ng3 b5 12. Qe2 Nc5 13. Be3 Nb3 14. Rb1 Ng4 15. f3 Nxe3 16. Qxe3 Nd4 17. Bd3 c5 18. dxc6 Bxc6 19. Nce2 Ne6 20. b4 Kh8 21. Rc1 Ba8 22. 0-0 g6 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.25"]
[Round "9"]
[White "Costescu, Mihnea Constantin"]
[Black "Pop, Andrei Nicolae"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1158"]
[BlackElo "1383"]
[PlyCount "41"]
[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. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Be2 Be7 6. 0-0 0-0 7. d3 Nf6 8. Nc3 Nc6 9. Be3 Be6 10. Qd2 Qd7 11. a3 a6 12. Rad1 Rad8 13. d4 d5 14. Na4 Na7 15. Nc5 Bxc5 16. dxc5 Ne4 17. Qe1 Qe7 18. b4 Nc6 19. c3 d4 20. Nxd4 Nxd4 21. cxd4 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.24"]
[Round "8"]
[White "Simon, Cristian Eduard"]
[Black "Costescu, Mihnea Constantin"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1184"]
[BlackElo "1158"]
[PlyCount "43"]
[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. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Bb5 Qb6 6. Bxc6+ bxc6 7. Nf3 Ba6 8. Qc2 Be7 9. Be3 Nh6 10. b3 Nf5 11. c4 cxd4 12. Bf4 0-0 13. 0-0 Rac8 14. Rd1 dxc4 15. bxc4 c5 16. Nbd2 Rfd8 17. Qb3 h6 18. Ne4 Bb7 19. Qd3 Qc6 20. Ng3 Nxg3 21. Bxg3 Qe4 22. Qd2 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.23"]
[Round "7"]
[White "Popovici, Liviu Daniel"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "1144"]
[BlackElo "1158"]
[PlyCount "76"]
[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 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be3 Nf6 7. Be2 Be7 8. 0-0 d6 9. f4 e5 10. fxe5 dxe5 11. Nf5 Bxf5 12. exf5 0-0 13. Bf3 Nc6 14. Re1 Rad8 15. Qe2 Rfe8 16. Na4 Bf8 17. Bb6 Qe7 18. Bxd8 Rxd8 19. Bxc6 bxc6 20. Qxe5 Qxe5 21. Rxe5 Bd6 22. Re2 Bf8 23. Rae1 h6 24. g4 Bb4 25. c3 Bf8 26. h4 Rd3 27. Kg2 Bd6 28. g5 Rg3+ 29. Kf2 Ng4+ 30. Kf1 Rf3+ 31. Kg2 Rg3+ 32. Kf1 Rf3+ 33. Kg1 Rxf5 34. gxh6 Nxh6 35. Rf1 Rh5 36. Re4 Rd5 37. Rd4 Bc5 38. Nxc5 Rxc5 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.22"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Teodorescu, Luca Nicolae"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1158"]
[BlackElo "1296"]
[PlyCount "86"]
[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 e5 2. Nf3 Nc6 3. Bb5 d6 4. Nc3 Nf6 5. d3 a6 6. Ba4 Be7 7. h3 0-0 8. 0-0 Ne8 9. Be3 f5 10. Bb3+ Kh8 11. Qc1 fxe4 12. dxe4 Bxh3 13. Ng5 Bxg2 14. Kxg2 Bxg5 15. Bxg5 Qd7 16. Rg1 Nd4 17. Kf1 Qh3+ 18. Rg2 Nf3 19. Nd5 Qh1+ 20. Ke2 Qxg2 21. Be7 Nd4+ 22. Kd3 Qf3+ 23. Qe3 Qxe3+ 24. fxe3 Nxb3 25. axb3 Rf7 26. Bg5 c6 27. Nb6 Rb8 28. Nc4 h6 29. Rh1 Kg8 30. Bh4 g5 31. Rg1 Kh7 32. Be1 Kg6 33. b4 Rd8 34. Bc3 Nf6 35. Nd2 h5 36. Nf3 Nh7 37. Nh4+ Kg7 38. Nf5+ Rxf5 39. exf5 Kf6 40. Rh1 h4 41. e4 d5 42. Rh2 dxe4+ 43. Kxe4 Rd1 0-1

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.21"]
[Round "4"]
[White "Costescu, Mihnea Constantin"]
[Black "Soare, Andrei"]
[Result "1-0"]
[ECO "C71"]
[WhiteElo "1158"]
[BlackElo "1001"]
[PlyCount "23"]
[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 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 a6 5. Ba4 b5 6. Bb3 Bg4 7. Be3 Be7 8. 0-0 Nf6 9. Nc3 0-0 10. Qd2 Bxf3 11. gxf3 Qd7 12. dxe5 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.21"]
[Round "5"]
[White "Crecan, Dragos Matei"]
[Black "Costescu, Mihnea Constantin"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "1229"]
[BlackElo "1158"]
[PlyCount "61"]
[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 c5 2. a3 e6 3. b4 cxb4 4. axb4 Qc7 5. Bb2 Nf6 6. e5 Nd5 7. c3 Qxe5+ 8. Be2 Qc7 9. Nf3 Be7 10. c4 Nf6 11. Qb3 0-0 12. 0-0 d6 13. d4 Nbd7 14. Nc3 b6 15. Qc2 Bb7 16. Ng5 h6 17. Nge4 d5 18. Nd2 Bxb4 19. Ba3 Bxa3 20. Rxa3 a6 21. Na2 Rac8 22. Rg3 Rfe8 23. Qc1 Nf8 24. Nf3 Ng6 25. Ne5 Ne4 26. Rg4 Nf6 27. Rg3 Ne4 28. Rg4 Nf6 29. Rg3 Ne4 30. Rg4 Nf6 31. Rg3 1/2-1/2

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.20"]
[Round "3"]
[White "Radu, Andrei1111"]
[Black "Costescu, Mihnea Constantin"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1024"]
[BlackElo "1158"]
[PlyCount "42"]
[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 c5 2. Nf3 e6 3. Nc3 Nc6 4. d3 a6 5. a3 Nf6 6. Be2 Qc7 7. h3 Be7 8. Be3 b5 9. 0-0 0-0 10. a4 b4 11. Na2 Bb7 12. b3 a5 13. Qd2 d6 14. Rac1 Nb8 15. c3 bxc3 16. Nxc3 Nbd7 17. Rfe1 Bd8 18. d4 Nxe4 19. Nxe4 Bxe4 20. dxc5 dxc5 21. Red1 Ra7 1/2-1/2

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.19"]
[Round "2"]
[White "Costescu, Mihnea Constantin"]
[Black "Ciobanu, Sebastian Stefan"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "1158"]
[BlackElo "1001"]
[PlyCount "49"]
[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 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 d6 6. Nge2 Nf6 7. 0-0 0-0 8. f4 Qc7 9. Nd5 Nxd5 10. exd5 Nd4 11. c3 Nxe2+ 12. Qxe2 Re8 13. Bd2 e6 14. Rae1 Bd7 15. Qf3 exd5 16. Rxe8+ Rxe8 17. Qxd5 Bc6 18. Qb3 Bxg2 19. Kxg2 Re2+ 20. Rf2 Qc6+ 21. Kf1 Rxf2+ 22. Kxf2 Qh1 23. Be1 Qxh2+ 24. Ke3 Qg1+ 25. Bf2 1/2-1/2

[Event "ROM-ch U10"]
[Site "Calimanesti Caciulata"]
[Date "2016.04.18"]
[Round "1"]
[White "Mainov, Ioan Mihail"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "1442"]
[BlackElo "1158"]
[PlyCount "75"]
[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 c5 2. Nc3 e6 3. Nf3 Nc6 4. Bb5 Qc7 5. Bxc6 bxc6 6. 0-0 Nf6 7. d3 Be7 8. Bg5 Ba6 9. Qd2 h6 10. Bf4 d6 11. e5 dxe5 12. Bxe5 Bd6 13. Bxd6 Qxd6 14. Qe2 0-0 15. Qe5 Qxe5 16. Nxe5 Rac8 17. Na4 Bb7 18. Nxc5 Ba8 19. f4 Rfd8 20. Rfd1 Nd5 21. Rf1 Nf6 22. Rad1 Nd5 23. b3 Ne3 24. Rfe1 Nxd1 25. Rxd1 Re8 26. Re1 Red8 27. c3 Rd5 28. d4 Rdd8 29. Kf2 Re8 30. Re2 Red8 31. Ke1 Re8 32. Kf2 f6 33. Nc4 e5 34. Nd6 Rcd8 35. Nxe8 Rxe8 36. fxe5 fxe5 37. Rxe5 Rf8+ 38. Ke2 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.06"]
[Round "9"]
[White "Musca, Paul Constantin Cal"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1251"]
[BlackElo "1001"]
[PlyCount "89"]
[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 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Bf5 6. Bd3 Bd7 7. cxd5 e6 8. dxe6 Bxe6 9. Bg5 Be7 10. Bxf6 Bxf6 11. Bb5+ Bd7 12. Bxd7+ Qxd7 13. Nf3 0-0 14. 0-0 Nc6 15. Qd2 h6 16. h3 Rfe8 17. Rfe1 Rxe1+ 18. Rxe1 Nxd4 19. Nxd4 Bxd4 20. Rd1 Rd8 21. Kh1 b5 22. Ne2 Qd5 23. Qxd4 Qxd4 24. Rxd4 Rxd4 25. Nxd4 a6 26. Nc6 Kf8 27. Kg1 Ke8 28. Nb8 a5 29. Nc6 a4 30. Na7 b4 31. Nc6 b3 32. axb3 axb3 33. Nd4 Ke7 34. Kf1 Kd6 35. Ke2 Kd5 36. Nxb3 Kc4 37. Na5+ Kb5 38. Nb7 f6 39. Kd3 g5 40. Ke4 Kc6 41. Kf5 Kxb7 42. Kxf6 Kc6 43. Kg6 Kd5 44. Kxh6 Ke5 45. Kxg5 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.05"]
[Round "8"]
[White "Costescu, Mihnea Constantin"]
[Black "Simon, Cristian Eduard"]
[Result "1/2-1/2"]
[ECO "B27"]
[WhiteElo "1001"]
[BlackElo "1138"]
[PlyCount "99"]
[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 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. Nc3 Nc6 6. Qa4 d6 7. Be3 a6 8. Qc4 Bg7 9. Qd3 Nb4 10. Qd2 0-0 11. 0-0-0 Be6 12. Kb1 Qa5 13. a3 Nc6 14. h4 Ng4 15. Bd4 Nxd4 16. Nxd4 Bxd4 17. Qxd4 Qc5 18. Qxc5 dxc5 19. Rd2 Rad8 20. Rxd8 Rxd8 21. Be2 Nxf2 22. Rf1 Ng4 23. Rd1 Rxd1+ 24. Bxd1 Ne3 25. Bf3 f5 26. e5 Nc4 27. Bxb7 a5 28. Bd5 Bxd5 29. Nxd5 e6 30. Nc7 Nxe5 31. Nxe6 c4 32. b3 cxb3 33. cxb3 Nc6 34. Kc2 h6 35. Kc3 Kf7 36. Nf4 g5 37. hxg5 hxg5 38. Nh5 f4 39. b4 axb4+ 40. axb4 Nxb4 41. Kxb4 Kg6 42. Nxf4+ gxf4 43. Kc3 Kg5 44. Kd2 Kg4 45. Ke2 Kg3 46. Kf1 Kg4 47. Kf2 Kh4 48. Kf3 Kg5 49. g4 fxg3 50. Kxg3 1/2-1/2

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.04"]
[Round "7"]
[White "Baciu, Mihnea Iustin"]
[Black "Costescu, Mihnea Constantin"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "1262"]
[BlackElo "1001"]
[PlyCount "89"]
[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 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Nc6 7. Be3 Bd6 8. Bd3 0-0 9. 0-0 b6 10. cxd5 exd5 11. Bg5 Be6 12. Re1 Re8 13. Bb5 Rc8 14. Ne5 Bxe5 15. dxe5 Kh8 16. exf6 gxf6 17. Bf4 Rg8 18. Bxc6 Rxc6 19. Ne2 d4 20. Nxd4 Rc4 21. Nxe6 Qxd1 22. Raxd1 fxe6 23. Bg3 e5 24. f3 a5 25. Rd6 Rb4 26. Rxf6 h5 27. Bxe5 Ra8 28. Rf8+ Kh7 29. Rxa8 Ra4 30. Ra6 b5 31. Bc3 Kg8 32. Ra7 Rf4 33. Re8+ Rf8 34. Rxf8+ Kxf8 35. Kf2 a4 36. Ke3 Ke8 37. Ba5 b4 38. Ke4 a3 39. b3 h4 40. Ke5 h3 41. g3 Kf8 42. Ke6 Kg8 43. Kf6 Kh8 44. Kg6 Kg8 45. Ra8# 1-0

[Event "ROM-ch U10"]
[Site "Calimanesti"]
[Date "2015.04.03"]
[Round "6"]
[White "Costescu, Mihnea Constantin"]
[Black "Teodorescu, Luca Nicolae"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1001"]
[BlackElo "1166"]
[PlyCount "67"]
[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 e5 2. Nf3 d6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 Nf6 6. Qe2 b6 7. Nc3 Bb7 8. Bd2 0-0 9. 0-0-0 Nbd7 10. Kb1 Nc5 11. Bd3 a6 12. h4 b5 13. g4 Qd7 14. g5 Ng4 15. h5 Ne5 16. h6 g6 17. f4 Nexd3 18. cxd3 b4 19. Nd5 Bxd5 20. exd5 Rfe8 21. Qf3 a5 22. f5 Rf8 23. Rde1 Rfb8 24. Nc6 Re8 25. fxg6 fxg6 26. Rhf1 Bf8 27. Qf6 Rxe1+ 28. Rxe1 Re8 29. Rf1 Nxd3 30. Be3 Qc8 31. Bd4 Re1+ 32. Rxe1 Nxe1 33. Ne7+ Bxe7 34. Qg7# 1-0

