[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2018.01.04"]
[Round "9"]
[White "Barchuk, Irina"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2014"]
[BlackElo "1999"]
[PlyCount "73"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Qd2 b5 8. f3 Bb7 9. g4 h6 10. 0-0-0 Nbd7 11. a3 Nb6 12. h4 Nfd7 13. Rg1 Rc8 14. g5 hxg5 15. hxg5 g6 16. f4 Nc5 17. f5 e5 18. fxg6 fxg6 19. Nf3 Nxe4 20. Nxe4 Bxe4 21. Bd3 Nc4 22. Qe2 Bf5 23. Kb1 Qc7 24. Bc1 Be7 25. b3 Qb7 26. Rde1 Rh3 27. Rgf1 Bg4 28. Bxg6+ Kd8 29. Be4 Qb6 30. Qg2 Be6 31. g6 Kc7 32. Ng5 Bxg5 33. Qxg5 Re8 34. Rf7+ Kc8 35. Bf5 Rh2 36. Bxe6+ Rxe6 37. g7 1-0

[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2018.01.03"]
[Round "8"]
[White "Kostanski, Marcin"]
[Black "Mirski, Michal"]
[Result "1/2-1/2"]
[ECO "A88"]
[WhiteElo "1999"]
[BlackElo "1973"]
[PlyCount "27"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. g3 d6 4. Bg2 g6 5. 0-0 Bg7 6. c4 0-0 7. Nc3 c6 8. b3 Na6 9. Bb2 Nc7 10. Re1 Rb8 11. e4 fxe4 12. Nxe4 b5 13. Ned2 bxc4 14. Nxc4 1/2-1/2

[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2018.01.02"]
[Round "7"]
[White "Kostanski, Marcin"]
[Black "Nikitin, Aleksander I"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "1999"]
[BlackElo "2018"]
[PlyCount "78"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b5 3. Nbd2 Bb7 4. c4 bxc4 5. Nxc4 e6 6. e3 Be7 7. Bd3 c5 8. dxc5 Bxc5 9. a3 d5 10. Nce5 0-0 11. b4 Bd6 12. Bb2 Ne4 13. Qc2 Nd7 14. 0-0 Nb6 15. Rfd1 Rc8 16. Qb3 Qe7 17. a4 Rc7 18. a5 Nc8 19. Be2 Bxb4 20. Nd3 Bd6 21. Nd4 Ba6 22. Rac1 Bc4 23. Qa4 Rb7 24. Ba1 a6 25. Rb1 Na7 26. f3 Nf6 27. Rb6 Nb5 28. Nc6 Qc7 29. Rxb7 Qxb7 30. Nce5 Rc8 31. Rc1 Na3 32. Bb2 Bb5 33. Qb3 Nc4 34. Bd4 Nxa5 35. Rxc8+ Qxc8 36. Qa2 Nc4 37. Qc2 Qc7 38. Kf2 Nxe5 39. Qxc7 Nxd3+ 0-1

[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2017.12.31"]
[Round "6"]
[White "Ilandzis, Spyridon"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "2061"]
[BlackElo "1999"]
[PlyCount "92"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Bg5 Be6 9. Bxf6 gxf6 10. Qd3 Nd7 11. 0-0-0 b5 12. g3 Nb6 13. f4 Qc7 14. f5 Bd7 15. Kb1 b4 16. Nd5 Nxd5 17. Qxd5 Bc6 18. Qc4 a5 19. Rd5 Kd7 20. Rd2 Ke8 21. Bh5 Rf8 22. Rd5 Qb7 23. Rxa5 Bxe4 24. Rxa8+ Qxa8 25. Rd1 Qc6 26. Qe2 Rg8 27. Na5 Qa8 28. Qb5+ Kf8 29. Qxb4 Kg7 30. Qb3 d5 31. Qb7 Qxb7 32. Nxb7 d4 33. Na5 Rc8 34. Rf1 Rxc2 35. Ka1 Rxh2 36. Bd1 Bd3 37. Rg1 Bxf5 38. Nc6 Bc5 39. b4 Bb6 40. Bb3 d3 41. Rd1 e4 42. a4 e3 43. a5 Bc7 44. a6 Be4 45. b5 Bxc6 46. bxc6 Be5+ 0-1

[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2017.12.30"]
[Round "5"]
[White "Janus, Przemyslaw"]
[Black "Kostanski, Marcin"]
[Result "1/2-1/2"]
[ECO "E81"]
[WhiteElo "2071"]
[BlackElo "1999"]
[PlyCount "64"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. f3 d6 6. Be3 c5 7. Nge2 Qa5 8. Qd2 Nc6 9. Rd1 Qb4 10. Nd5 Nxd5 11. cxd5 Nxd4 12. Nxd4 Qxd2+ 13. Rxd2 cxd4 14. Bxd4 Bxd4 15. Rxd4 Bd7 16. Rb4 Rab8 17. Kd2 Rfc8 18. Bd3 Kf8 19. Rc1 Rxc1 20. Kxc1 Rc8+ 21. Kd2 Rc7 22. Rc4 Rxc4 23. Bxc4 f5 24. Ke3 Kf7 25. exf5 Bxf5 26. g4 Bd7 27. h4 h6 28. Ke4 Kf6 29. Kf4 g5+ 30. hxg5+ hxg5+ 31. Ke4 Be8 32. f4 Bd7 1/2-1/2

[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2017.12.30"]
[Round "4"]
[White "Kostanski, Marcin"]
[Black "Slezinski, Nikodem"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "1999"]
[BlackElo "2024"]
[PlyCount "152"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. 0-0 Be7 5. d4 0-0 6. Nbd2 c5 7. c4 cxd4 8. Nxd4 e5 9. N4f3 Nc6 10. cxd5 Qxd5 11. Qb3 Rd8 12. Qxd5 Nxd5 13. Nc4 f6 14. e4 Ndb4 15. Ne3 Bc5 16. a3 Bxe3 17. Bxe3 Nc2 18. Rad1 Nxe3 19. Rxd8+ Nxd8 20. fxe3 Be6 21. Rd1 Rc8 22. Ne1 Kf7 23. Nd3 a5 24. b4 b6 25. Bf1 Ke7 26. Nb2 Rc3 27. Rd3 Rc1 28. Rd1 Rxd1 29. Nxd1 Nb7 30. Nc3 Nd6 31. Na4 axb4 32. axb4 b5 33. Nc3 Bd7 34. Kf2 Bc6 35. g4 g6 36. h4 Ke6 37. Bd3 Kd7 38. h5 gxh5 39. gxh5 Ke6 40. Kg3 h6 41. Kg4 Kf7 42. Kg3 Ke7 43. Kg4 Ke6 44. Bc2 Nxe4 45. Bxe4 Bxe4 46. Nxe4 f5+ 47. Kf3 fxe4+ 48. Kxe4 Kf6 49. Kd5 Kf5 50. Kc5 Ke4 51. Kd6 Kd3 52. Kxe5 Kc4 53. Kf6 Kxb4 54. e4 Kc4 55. e5 b4 56. e6 b3 57. e7 b2 58. e8Q b1Q 59. Qc6+ Kd4 60. Qd6+ Ke3 61. Qe5+ Qe4 62. Qg3+ Kd4 63. Qd6+ Ke3 64. Kg7 Ke2 65. Kxh6 Qf5 66. Qe7+ Kf3 67. Qa3+ Kg4 68. Qb4+ Kh3 69. Qc3+ Kg4 70. Qd4+ Kh3 71. Qe3+ Kh4 72. Qe7+ Kg4 73. Qg7+ Kh4 74. Qg6 Qf8+ 75. Kh7 Qe7+ 76. Kg8 Qd8+ 1/2-1/2

[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2017.12.29"]
[Round "3"]
[White "Kostanski, Marcin"]
[Black "Staberhofer, Rainer"]
[Result "1-0"]
[ECO "D18"]
[WhiteElo "1999"]
[BlackElo "2027"]
[PlyCount "81"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Nbd7 8. 0-0 Qc7 9. Qe2 e5 10. e4 Bg4 11. d5 Bd6 12. Be3 0-0 13. Rac1 Nh5 14. h3 Nf4 15. Qd1 Bh5 16. dxc6 bxc6 17. Be2 Nxe2+ 18. Qxe2 Qb7 19. g4 Bg6 20. Rfd1 Be7 21. Qc4 Rfd8 22. Rd2 Kf8 23. a5 a6 24. Na4 Rac8 25. Rxd7 Qxd7 26. Nb6 Qe6 27. Qxe6 fxe6 28. Nxc8 Rxc8 29. Rc4 Bd6 30. Kf1 Ke8 31. Nd2 Kd7 32. b4 h5 33. Bc5 Bc7 34. Rc3 Rh8 35. Kg2 Rb8 36. f3 Be8 37. Nc4 Bd8 38. Rd3+ Kc8 39. Nd6+ Kd7 40. Nb7+ Kc7 41. Nxd8 1-0

[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2017.12.28"]
[Round "2"]
[White "Haborak, Kristian"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2092"]
[BlackElo "1999"]
[PlyCount "62"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Nf3 f6 5. d4 exd4 6. exd4 Bf5 7. Be2 Qd7 8. 0-0 0-0-0 9. c4 Nge7 10. c5 g5 11. a3 g4 12. Nh4 Be6 13. f4 gxf3 14. Nxf3 Nf5 15. Bc1 Rg8 16. b4 Qg7 17. Rf2 h5 18. Bf1 Qg4 19. h3 Qxh3 20. Ng5 Ne3 21. Qe2 Rxg5 22. Bxe3 Rg3 23. b5 Rxe3 24. gxh3 Rxe2 25. Bxe2 Nxd4 26. Kh2 Bxc5 27. Rg2 Bd6+ 28. Kh1 Bxh3 29. Nc3 Bxg2+ 30. Kxg2 Nxe2 31. Nxe2 Be5 0-1

[Event "Krakow op-B 28th"]
[Site "Krakow"]
[Date "2017.12.27"]
[Round "1"]
[White "Buchta, Agnieszka"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1801"]
[BlackElo "1999"]
[PlyCount "108"]
[EventDate "2017.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 Nxb5 5. Nxb5 a6 6. Nc3 d6 7. d4 cxd4 8. Qxd4 Nf6 9. Bg5 e6 10. 0-0-0 Be7 11. e5 dxe5 12. Qxe5 Bd7 13. Qd4 Bc6 14. Qe5 Qb8 15. Rhg1 Bxf3 16. Qxb8+ Rxb8 17. gxf3 Rd8 18. Rxd8+ Kxd8 19. Ne4 h6 20. Be3 Nxe4 21. fxe4 g5 22. Bd4 Rg8 23. h3 f5 24. f3 Kc7 25. c4 Kc6 26. Kc2 Rd8 27. Bc3 fxe4 28. fxe4 Rf8 29. Rg3 Rf2+ 30. Kd3 Bd6 31. e5 Bc7 32. Bd4 Rf5 33. Ke4 Rf4+ 34. Ke3 b5 35. b3 bxc4 36. bxc4 Bb6 37. Bxb6 Kxb6 38. Rg4 Kc5 39. Rxf4 gxf4+ 40. Kxf4 Kxc4 41. Ke4 a5 42. h4 Kc5 43. a4 Kc4 44. Kf4 Kd4 45. Kg4 Kxe5 46. Kh5 Kf6 47. Kxh6 e5 48. Kh5 Kf5 49. Kh6 e4 50. Kg7 e3 51. h5 e2 52. h6 e1Q 53. h7 Qe7+ 54. Kg8 Kg6 0-1

[Event "Krakow op-B 27th"]
[Site "Krakow"]
[Date "2017.01.03"]
[Round "8"]
[White "Kumor, Lukasz"]
[Black "Kostanski, Marcin"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2088"]
[BlackElo "1940"]
[PlyCount "39"]
[EventDate "2016.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nc6 8. Qd2 Be6 9. 0-0-0 a6 10. Kb1 Qd7 11. h3 0-0-0 12. Ng5 Bxg5 13. Bxg5 f6 14. Bf4 Ne5 15. Be2 Kb8 16. Rhe1 Rhe8 17. Qd4 Nc6 18. Qa4 Ne5 19. Qa5 Nc4 20. Bxc4 1/2-1/2

[Event "Krakow op-B 27th"]
[Site "Krakow"]
[Date "2017.01.02"]
[Round "7"]
[White "Shpanko, Nadiia"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "B28"]
[WhiteElo "2018"]
[BlackElo "1940"]
[PlyCount "136"]
[EventDate "2016.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c4 e6 4. Nc3 Nc6 5. d4 cxd4 6. Nxd4 Nf6 7. a3 Qa5 8. Nb3 Qc7 9. f4 d6 10. Be3 Be7 11. Bd3 b6 12. 0-0 Bb7 13. Nd2 0-0 14. Rc1 Nb8 15. b4 Nbd7 16. Qe2 Rac8 17. h3 Qb8 18. g4 Rfd8 19. g5 Ne8 20. h4 Bc6 21. Nf3 a5 22. Nd4 Ba8 23. Rb1 axb4 24. axb4 Bf8 25. Ndb5 Nc7 26. Nxc7 Rxc7 27. Rfd1 Bc6 28. Qf2 Ra7 29. Ne2 Ra2 30. Ra1 Rxa1 31. Rxa1 b5 32. Nd4 Qb7 33. cxb5 Bxe4 34. Bxe4 Qxe4 35. Nc6 Rc8 36. Ra7 Nb8 37. Ra8 Rxc6 38. bxc6 Nxc6 39. b5 Nb4 40. Ra4 Qb1+ 41. Kh2 Qb3 42. Ra5 Nd3 43. Qe2 e5 44. Qa2 Qd1 45. Qd2 Qf1 46. Ra3 e4 47. b6 Ne1 48. Qf2 Nf3+ 49. Kg3 Qb5 50. Ra2 h5 51. gxh6 Be7 52. Ra8+ Kh7 53. hxg7 Kxg7 54. Bd4+ Kg6 55. Rg8+ Kf5 56. Qg2 Nxd4 57. Kh3 Qxb6 58. Qg4+ Kf6 59. Qg5+ Ke6 60. Re8 Nf5 61. Qg2 Qe3+ 62. Kg4 Qf3+ 63. Qxf3 exf3 64. Kxf3 Nxh4+ 65. Ke4 d5+ 66. Ke3 Ng6 67. Ra8 Bd6 68. Ra6 Nxf4 0-1

[Event "Krakow op-B 27th"]
[Site "Krakow"]
[Date "2016.12.31"]
[Round "6"]
[White "Kostanski, Marcin"]
[Black "Cichonski, Bartlomiej"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1940"]
[BlackElo "2018"]
[PlyCount "39"]
[EventDate "2016.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 Na6 7. a3 e5 8. d5 Nc5 9. Qc2 a5 10. b3 a4 11. b4 Nb3 12. Rb1 Nd4 13. Qd3 Nxe4 14. Nxe4 f5 15. Neg5 e4 16. Qxd4 exf3 17. Qh4 Bc3+ 18. Bd2 Qe7 19. Nxf3 Bf6 20. Bg5 1-0

[Event "Krakow op-B 27th"]
[Site "Krakow"]
[Date "2016.12.30"]
[Round "5"]
[White "Jaskolka, Tomasz"]
[Black "Kostanski, Marcin"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2048"]
[BlackElo "1940"]
[PlyCount "151"]
[EventDate "2016.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 e6 3. Nc3 d5 4. e5 Nge7 5. Bb5 Bd7 6. Nge2 Nf5 7. Bxc6 bxc6 8. Ng3 Nxg3 9. hxg3 c5 10. dxc5 Bxc5 11. Qd3 h6 12. g4 Be7 13. Rh5 c5 14. g5 Qc7 15. gxh6 g6 16. Rh1 Qxe5+ 17. Kf1 d4 18. Qe4 Bb5+ 19. Ke1 Qxe4+ 20. Nxe4 f6 21. g4 Bc6 22. f3 g5 23. b3 Bd5 24. Ke2 Kf7 25. c4 Bb7 26. Ba3 Rac8 27. Rh3 Rh7 28. Kd3 Kg6 29. Rah1 f5 30. Nf2 Rch8 31. Re1 Bc8 32. gxf5+ exf5 33. Re5 Kf6 34. Rxc5 Bxc5 35. Bxc5 Rd8 36. Bxd4+ Kg6 37. Kc3 Rxh6 38. Rxh6+ Kxh6 39. Bxa7 Bb7 40. Nh3 f4 41. Bc5 Re8 42. Ng1 Kg6 43. a4 Ra8 44. Bb6 Kf5 45. a5 Rh8 46. b4 g4 47. fxg4+ Kxg4 48. b5 f3 49. a6 Ba8 50. Bd4 Rd8 51. b6 Rd7 52. b7 Bxb7 53. axb7 Rxb7 54. Bf2 Rh7 55. c5 Rh2 56. c6 Rh6 57. Nxf3 Kxf3 58. Bc5 Rxc6 59. Kd4 Kf4 60. Kd5 Rg6 61. Bd6+ Kf5 62. Bb4 Rg1 63. Bd6 Rd1+ 64. Kc6 Ke6 65. Ba3 Rd2 66. Bf8 Rc2+ 67. Kb7 Kd7 68. Bg7 Rc6 69. Bd4 Rc4 70. Ba7 Rb4+ 71. Ka8 Kc7 72. Bg1 Rh4 73. Bf2 Rh8+ 74. Ka7 Kc6 75. Be3 Rf8 76. Bg1 1/2-1/2

[Event "Krakow op-B 27th"]
[Site "Krakow"]
[Date "2016.12.29"]
[Round "3"]
[White "Alothman, Abdul Wahab"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2067"]
[BlackElo "1940"]
[PlyCount "62"]
[EventDate "2016.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d5 5. Be2 Nbd7 6. Ne5 0-0 7. 0-0 c6 8. Nd2 Nxe5 9. Bxe5 Bf5 10. c4 dxc4 11. Bxc4 Bh6 12. Qe2 Nd7 13. Bg3 Nb6 14. Bb3 Qd7 15. Nf3 Bg4 16. h3 Be6 17. Ne5 Qc8 18. Bc2 Nd5 19. Nd3 f6 20. e4 Nb6 21. f4 Rd8 22. Bf2 Qc7 23. f5 gxf5 24. Qh5 Kg7 25. exf5 Bf7 26. Qg4+ Kh8 27. Nc5 Rg8 28. Qf3 Nc4 29. Qc3 Bd5 30. Be4 Rxg2+ 31. Bxg2 Rg8 0-1

[Event "Krakow op-B 27th"]
[Site "Krakow"]
[Date "2016.12.29"]
[Round "4"]
[White "Kostanski, Marcin"]
[Black "Motyl, Tomasz"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "1940"]
[BlackElo "2012"]
[PlyCount "77"]
[EventDate "2016.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 Bg4 3. c4 Nd7 4. Qb3 Rb8 5. h3 Bxf3 6. Qxf3 Ngf6 7. Nc3 g6 8. e4 Bg7 9. Be2 0-0 10. 0-0 c6 11. Be3 a6 12. g4 b5 13. cxb5 axb5 14. Rac1 Qa5 15. b3 Rfc8 16. Rc2 c5 17. dxc5 Nxc5 18. g5 Nfd7 19. Nd5 Qd8 20. Rfc1 e6 21. Nf6+ Bxf6 22. gxf6 b4 23. Bg5 Ne5 24. Qf4 Ncd7 25. Qh4 Rxc2 26. Rxc2 Nb6 27. f4 Ned7 28. Rc6 d5 29. e5 Qe8 30. Bb5 Rc8 31. Qh6 Qf8 32. Rxc8 Nxc8 33. Qxf8+ Nxf8 34. Bh4 Nb6 35. Be1 g5 36. Bxb4 gxf4 37. a4 Nbd7 38. Bxf8 Nxf8 39. a5 1-0

[Event "Krakow op-B 27th"]
[Site "Krakow"]
[Date "2016.12.28"]
[Round "2"]
[White "Kostanski, Marcin"]
[Black "Janus, Przemyslaw"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "1940"]
[BlackElo "2084"]
[PlyCount "64"]
[EventDate "2016.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. 0-0 e6 5. d4 Bd6 6. c4 c6 7. Qb3 Qb6 8. c5 Qxb3 9. axb3 Bc7 10. Nc3 Nbd7 11. Bf4 Bxf4 12. gxf4 Ne4 13. Ra3 f6 14. b4 a6 15. Nh4 g6 16. Nxe4 dxe4 17. f3 Ke7 18. fxe4 Bg4 19. Kf2 f5 20. exf5 gxf5 21. Rfa1 Rad8 22. Rg3 Kf7 23. Nf3 Bxf3 24. Bxf3 Nf6 25. e3 Rhg8 26. Rxg8 Kxg8 27. Ke2 Nd5 28. Bxd5 exd5 29. Rg1+ Kf7 30. Kd3 Rg8 31. Rxg8 Kxg8 32. Ke2 Kf7 1/2-1/2

[Event "POL-ch U26 rapid"]
[Site "Hucisko"]
[Date "2016.01.15"]
[Round "4"]
[White "Kostanski, Marcin"]
[Black "Swiercz, Dariusz"]
[Result "0-1"]
[ECO "A39"]
[WhiteElo "1940"]
[BlackElo "2664"]
[PlyCount "68"]
[EventDate "2016.01.15"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 c5 6. c4 cxd4 7. Nxd4 Nc6 8. Nc3 Qa5 9. Nb3 Qh5 10. e4 Qxd1 11. Rxd1 d6 12. Nd5 Nxd5 13. cxd5 Ne5 14. Nd4 Bd7 15. h3 Rfc8 16. b3 Be8 17. Bb2 a5 18. Rac1 Rxc1 19. Bxc1 a4 20. f4 Nd7 21. b4 Rc8 22. Be3 Rc4 23. b5 Nc5 24. Kf2 Rc3 25. Kf3 Ra3 26. Rd2 Bxd4 27. Rxd4 Bxb5 28. Rd2 Bc4 29. e5 b5 30. exd6 exd6 31. Kf2 Nd3+ 32. Kg1 Ne1 33. Bb6 Rxg3 34. Bc7 Nf3+ 0-1

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.29"]
[Round "9"]
[White "Poswiatowski, Michal"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2085"]
[BlackElo "1930"]
[PlyCount "169"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. Qe2 e5 7. d3 Be7 8. Nh4 Nf8 9. Nf5 Ne6 10. c3 g6 11. Nh6 Nh5 12. g3 Bg5 13. h4 Bxc1 14. Rxc1 Qf6 15. d4 exd4 16. Qb5+ Kf8 17. Qxb7 Kg7 18. Ng4 Qf3 19. Nh2 Qe2 20. Qb3 Rab8 21. Qc2 Rxb2 22. Qxe2 Rxe2 23. cxd4 Nxd4 24. Nc3 Rb2 25. Nf1 Nf6 26. Ne3 Ne2+ 27. Nxe2 Rxe2 28. Kf1 Rd2 29. Nc4 Rd4 30. e5 dxe5 31. Nxe5 Rc8 32. Rab1 Rc7 33. Rb5 Ne4 34. Rc2 Kf6 35. Nf3 Rd3 36. Ke2 Rc3 37. Rbb2 Ra3 38. Rb3 Ra4 39. Re3 Nd6 40. Kd1 h6 41. Rd3 Nf5 42. Rd5 Ke6 43. Re5+ Kd6 44. Rd2+ Kc6 45. Re8 Kb7 46. Ne5 c4 47. Rb2+ Ka6 48. Nxf7 Nd4 49. Rd8 Nb5 50. Nd6 c3 51. Nxb5 cxb2 52. Nxc7+ Kb7 53. Kc2 Kxc7 54. Rh8 Rb4 55. Kb1 h5 56. Rh6 Rb6 57. Rh7+ Kb8 58. Re7 Rd6 59. Re2 Kc7 60. Kxb2 Kc6 61. Kc3 Rf6 62. Kd4 Kd6 63. Rb2 Rf7 64. Ke4 Ke6 65. a4 Rc7 66. Kd4 Kd6 67. Rb8 Ke6 68. a5 Rc6 69. Rb5 Ra6 70. Rg5 Kf6 71. Kc4 Re6 72. Rd5 Ke7 73. Rb5 Rc6+ 74. Rc5 Rf6 75. Rc7+ Kd8 76. Rxa7 Rxf2 77. Ra6 Rf5 78. Ra7 g5 79. a6 Kc8 80. Rg7 gxh4 81. a7 Ra5 82. g4 Ra1 83. Kd4 Ra4+ 84. Ke5 Ra6 85. Kf5 1-0

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.28"]
[Round "8"]
[White "Kostanski, Marcin"]
[Black "Suliborski, Jakub"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "1930"]
[BlackElo "2002"]
[PlyCount "16"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 c6 4. Bg2 e6 5. 0-0 Bd6 6. Nbd2 0-0 7. c4 Nbd7 8. Qc2 Re8 1/2-1/2

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.27"]
[Round "7"]
[White "Grabowski, Adam"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2086"]
[BlackElo "1930"]
[PlyCount "106"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 Bg7 8. Be3 0-0 9. Bc4 Nc6 10. h3 Na5 11. Be2 Be6 12. 0-0 Bc4 13. e5 cxd4 14. cxd4 Bxe2 15. Qxe2 Qd5 16. Rab1 a6 17. Bd2 Nc4 18. Bb4 Rfe8 19. Rfc1 b5 20. a4 e6 21. Bc5 Rab8 22. axb5 axb5 23. Rb4 Rec8 24. Rcb1 Nxe5 25. Nxe5 Bxe5 26. Ba7 Bd6 27. Bxb8 Bxb4 28. Be5 Qc4 29. Qf3 Be7 30. Ra1 f6 31. Bxf6 Rf8 32. Ra8 Bxf6 33. Rxf8+ Kxf8 34. Qxf6+ Ke8 35. Qh8+ Kd7 36. Qxh7+ Kd6 37. Qxg6 b4 38. Qg3+ Kc6 39. Qf3+ Kb6 40. Qe3 Kb5 41. d5 exd5 42. Qe8+ Kc5 43. Qe7+ Kb5 44. Qe8+ Qc6 45. Qe2+ Ka5 46. Qa2+ Kb6 47. Qb3 Qc4 48. Qe3+ d4 49. Qe7 b3 50. Qd6+ Kb5 51. Qd7+ Kb4 52. Qe7+ Kc3 53. Qe1+ Kc2 0-1

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.26"]
[Round "6"]
[White "Kostanski, Marcin"]
[Black "Kosakowski, Jakub"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "1930"]
[BlackElo "1846"]
[PlyCount "135"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. e3 0-0 6. cxd5 Nxd5 7. Bc4 Nxc3 8. bxc3 c5 9. 0-0 Nc6 10. Ba3 cxd4 11. cxd4 Bg4 12. Be2 Qa5 13. Qb3 Be6 14. Qxb7 Nxd4 15. Nxd4 Bxd4 16. Bb4 Qb6 17. Qxb6 Bxb6 18. Bxe7 Rfe8 19. Bf6 Bf5 20. Rfc1 Re6 21. Bg5 Kg7 22. a4 a5 23. Bb5 h6 24. Bf4 Rd8 25. Rd1 g5 26. Bg3 Bg6 27. Rxd8 Bxd8 28. Rd1 Be7 29. Rd7 Bb4 30. Kf1 Bc3 31. Rc7 Bb4 32. Ke2 Kg8 33. Ra7 Kg7 34. Rd7 Kg8 35. Bc7 Be4 36. Bc4 Rc6 37. Bxf7+ Kf8 38. Bb3 Bxg2 39. Be5 Be4 40. f3 Bg6 41. e4 g4 42. Ke3 gxf3 43. Kxf3 Rc1 44. Bd5 Rf1+ 45. Ke3 Re1+ 46. Kd4 Rd1+ 47. Ke3 Re1+ 48. Kf3 Rf1+ 49. Kg4 Rg1+ 50. Bg3 Be7 51. Ra7 h5+ 52. Kf3 h4 53. Ra8+ Kg7 54. Be5+ Kh6 55. Bf4+ Kg7 56. Rxa5 Rf1+ 57. Ke3 Re1+ 58. Kf2 Rb1 59. e5 Rb2+ 60. Kf3 Bh5+ 61. Ke4 Rb4+ 62. Kf5 Bg6+ 63. Kg4 Bh5+ 64. Kxh5 Rxf4 65. Be6 h3 66. Bg4 Rf8 67. Bxh3 Rf4 68. Bg4 1/2-1/2

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.24"]
[Round "5"]
[White "Kostanski, Marcin"]
[Black "Powalka, Michal"]
[Result "1-0"]
[ECO "E98"]
[WhiteElo "1930"]
[BlackElo "1768"]
[PlyCount "63"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Ne8 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. c5 Rf7 14. cxd6 Nxd6 15. Nb5 a6 16. Nxd6 Qxd6 17. Rc1 Bf8 18. Nd3 Kh8 19. Qb3 Rg7 20. Qc3 Ng6 21. Bc5 Qf6 22. Bxf8 Qxf8 23. Nxe5 Nh4 24. g3 fxg3 25. hxg3 Bh3 26. Rf2 Re8 27. Kh2 Qf6 28. Ng4 Qf7 29. Kxh3 h5 30. Nf6 Ng6 31. Nxe8 Qxe8 32. Qf6 1-0

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.23"]
[Round "4"]
[White "Zurkowski, Andrzej"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "E77"]
[WhiteElo "2003"]
[BlackElo "1930"]
[PlyCount "51"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. f4 d6 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. 0-0 Nbd7 11. Bd3 Ng4 12. h3 Ne3 13. Bxe3 Bxc3 14. bxc3 Rxe3 15. Qd2 Re8 16. f5 Ne5 17. fxg6 fxg6 18. Nxe5 Rxe5 19. Rf3 Qe7 20. Raf1 Bd7 21. Qf2 Re8 22. Rf7 Qd8 23. Qg3 Re3 24. Qxd6 Bxh3 25. Qf4 Bc8 26. Qh6 1-0

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.22"]
[Round "3"]
[White "Mielczarek, Joanna"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1509"]
[BlackElo "1930"]
[PlyCount "118"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 b5 9. a3 Bb7 10. Bf3 Nbd7 11. 0-0 Nb6 12. Na5 Qc7 13. Nxb7 Qxb7 14. Bxb6 Qxb6 15. Nd5 Nxd5 16. Qxd5 0-0 17. Bg4 Ra7 18. c3 Rc7 19. Qb3 Rc4 20. Rfe1 d5 21. Be2 Rxe4 22. Qxd5 Rf4 23. Bf3 Bf6 24. Rad1 h6 25. Qc6 Qa5 26. Rd6 Qa4 27. Qxa6 Qb3 28. Rd2 Rxf3 29. gxf3 Bg5 30. Rde2 Bf4 31. Qd6 Re8 32. Rd1 Re6 33. Qd5 Rg6+ 34. Kh1 Qa4 35. Qd8+ Kh7 36. Qd3 Kg8 37. Rg1 Rf6 38. Qd8+ Kh7 39. Qf8 Bg5 40. Qb4 Qa7 41. Qe4+ g6 42. Rg3 Bf4 43. Rg2 Qd7 44. Re1 Qd2 45. Qe2 Qd7 46. Rd1 Qh3 47. Rd3 Rf5 48. Rg3 Qh4 49. Qf1 e4 50. Rd7 exf3 51. Qh3 Bxg3 52. Qxg3 Qc4 53. Qg1 Qe2 54. b3 Qe6 55. Rd3 Qxb3 56. Qc1 Qc4 57. Rd4 Qe2 58. Rd2 Qe7 59. Rc2 Re5 0-1

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.21"]
[Round "2"]
[White "Kostanski, Marcin"]
[Black "Kozaczynska, Aleksandra"]
[Result "1-0"]
[ECO "E99"]
[WhiteElo "1930"]
[BlackElo "1584"]
[PlyCount "97"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Ne8 10. Be3 f5 11. f3 Nf6 12. c5 a6 13. Rc1 Bd7 14. Qb3 Qc8 15. Nd3 f4 16. Bf2 Ne8 17. cxd6 Nxd6 18. Na4 Bxa4 19. Qxa4 b5 20. Qc2 Ne8 21. Nc5 Rf6 22. Bh4 Rf7 23. Ne6 Qd7 24. Qb3 h6 25. Rc2 g5 26. Bf2 Rc8 27. Qa3 Ra8 28. Rfc1 c6 29. Nxg7 Kxg7 30. dxc6 Qe6 31. Bxb5 Qf6 32. c7 Nd6 33. Bc6 Rc8 34. Bd7 Nb5 35. Qb4 Nd5 36. exd5 Rxd7 37. a4 Rdxc7 38. Rxc7+ Rxc7 39. Rxc7+ Nxc7 40. Qb7 Qf7 41. d6 Ne6 42. Qxa6 Qd7 43. b4 Nd4 44. b5 Nf5 45. Bc5 Ne7 46. Qa7 Qxa7 47. Bxa7 Nc8 48. d7 Nxa7 49. d8Q 1-0

[Event "Rewal op-B 18th"]
[Site "Rewal"]
[Date "2013.08.20"]
[Round "1"]
[White "Vakhitov, Dmitry"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "D75"]
[WhiteElo "1664"]
[BlackElo "1930"]
[PlyCount "132"]
[EventDate "2013.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nxc3 7. bxc3 0-0 8. Nf3 c5 9. 0-0 Nc6 10. e3 Qa5 11. Bb2 Rd8 12. Qc2 Bf5 13. e4 Bg4 14. d5 Ne5 15. Nxe5 Bxe5 16. f4 Bg7 17. c4 Bxb2 18. Qxb2 Bd7 19. e5 Rab8 20. Qe2 b5 21. e6 fxe6 22. dxe6 Be8 23. f5 Qd2 24. Qxd2 Rxd2 25. f6 exf6 26. Rxf6 bxc4 27. Rc1 Kg7 28. Rf2 Rxf2 29. Kxf2 Rb2+ 30. Kg1 Kf6 31. Rxc4 Kxe6 32. Re4+ Kf7 33. Rf4+ Ke7 34. Re4+ Kd8 35. Rc4 Rb5 36. Rc3 Kc7 37. Re3 Kd7 38. Bh3+ Kd8 39. Rd3+ Ke7 40. Re3+ Kf7 41. Be6+ Kf6 42. Bd5 Bd7 43. Kf2 Rb2+ 44. Kg1 Bf5 45. Rc3 Rb5 46. Ra3 Ke5 47. Bc4 Rb4 48. Be2 c4 49. Kf2 Kd4 50. g4 Be4 51. Rxa7 c3 52. Rd7+ Bd5 53. Rc7 Bxa2 54. Rd7+ Bd5 55. Rc7 Rb2 56. Ke1 Rb1+ 57. Kf2 Rh1 58. Bf1 Rxh2+ 59. Ke1 c2 60. Rc8 Be4 61. Be2 h5 62. gxh5 gxh5 63. Rc7 h4 64. Rc8 h3 65. Rc7 Rxe2+ 66. Kxe2 h2 0-1

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.14"]
[Round "11"]
[White "Wach, Bartosz"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "1653"]
[BlackElo "1956"]
[PlyCount "64"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Kielce Fart U19"]
[BlackTeam "Krosno KKSz Urania U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. Nf3 g6 2. g3 Bg7 3. d4 d6 4. c4 Nd7 5. Bg2 e5 6. e4 Ne7 7. Nc3 0-0 8. 0-0 h6 9. dxe5 Nxe5 10. Nd2 Nd3 11. Qc2 Nxc1 12. Raxc1 Nc6 13. Ne2 Bg4 14. f3 Be6 15. a3 a5 16. b3 Qf6 17. f4 Bg4 18. Nf3 Qb2 19. Qd1 Qxa3 20. h3 Bxf3 21. Rxf3 a4 22. Rb1 Qc5+ 23. Kh2 a3 24. Nc3 a2 25. Ra1 Qb4 26. e5 dxe5 27. Rxa2 Rxa2 28. Nxa2 Qa5 29. Qb1 e4 30. Rf1 Ra8 31. Nc1 f5 32. g4 Qd2 0-1

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.11"]
[Round "7"]
[White "Goluch, Piotr"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2181"]
[BlackElo "1956"]
[PlyCount "71"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Bogatynia UKS SP3 U19"]
[BlackTeam "Krosno KKSz Urania U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. dxc5 Qxd1+ 7. Kxd1 e5 8. b4 e4 9. h3 Bh5 10. g4 exf3 11. gxh5 Nf6 12. Kc2 0-0-0 13. Nd2 Ne5 14. Nc4 Nxc4 15. Bxc4 Rd7 16. Re1 g6 17. Bg5 Nxh5 18. a4 Bg7 19. a5 h6 20. Be3 a6 21. c6 Rc7 22. cxb7+ Kxb7 23. Bd5+ Kb8 24. Bc5 Rd8 25. Rad1 Nf4 26. Bxf3 Rxd1 27. Rxd1 Kc8 28. Bd4 f5 29. Bxg7 Rxg7 30. Rd6 Ra7 31. h4 Kc7 32. Rf6 Kd8 33. c4 Ke7 34. Rb6 Rc7 35. Kb3 Ne6 36. Bd5 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.10"]
[Round "6"]
[White "Kostanski, Marcin"]
[Black "Adamowicz, Maciej"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1956"]
[BlackElo "1978"]
[PlyCount "107"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Krosno KKSz Urania U19"]
[BlackTeam "Grzybowo GKSz Solny U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 c5 4. c4 Nc6 5. 0-0 f5 6. Nc3 Nf6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 0-0 10. Qd3 d6 11. Rd1 Qc7 12. b3 Be6 13. Bb2 Rac8 14. Rac1 Bh6 15. e3 Ng4 16. Nd5 Qd7 17. Qd4 Ne5 18. f4 Nf7 19. a3 b6 20. Re1 Bxd5 21. cxd5 Qb5 22. b4 Rxc1 23. Rxc1 Qe2 24. Bf1 Qf3 25. Rc7 Re8 26. Bb5 Ne5 27. Bxe8 Qe2 28. fxe5 Bxe3+ 29. Qxe3 Qxe3+ 30. Kf1 Qd3+ 31. Ke1 Qb1+ 32. Bc1 Qe4+ 33. Kf2 dxe5 34. Bh6 Qd4+ 35. Kf1 Qd1+ 36. Kf2 Qh1 37. d6 Qxh2+ 38. Kf1 Qh3+ 39. Kf2 f4 40. gxf4 Qh2+ 41. Kf3 e4+ 42. Kxe4 Qh1+ 43. Ke3 Qxh6 44. dxe7 Qh5 45. Kd4 Qf5 46. Ba4 Qxf4+ 47. Kd5 Qf3+ 48. Kd6 Qf6+ 49. Kd7 Qf5+ 50. Kd8 Qd5+ 51. Bd7 Qg5 52. Be6+ Kh8 53. Kc8 Qb5 54. Bd7 1-0

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.09"]
[Round "5"]
[White "Antoniewicz, Jakub"]
[Black "Kostanski, Marcin"]
[Result "1/2-1/2"]
[ECO "A26"]
[WhiteElo "1776"]
[BlackElo "1956"]
[PlyCount "61"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Wroclaw MUKS MDK Fabryczna U19"]
[BlackTeam "Krosno KKSz Urania U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. g3 Bg7 5. Bg2 0-0 6. Nge2 Nc6 7. 0-0 e5 8. d3 Be6 9. f4 Qd7 10. Nd5 exf4 11. Ndxf4 Ne5 12. h3 c6 13. Be3 h6 14. Qd2 g5 15. Nxe6 fxe6 16. Rac1 d5 17. Bd4 Ng6 18. Bxf6 Bxf6 19. cxd5 cxd5 20. exd5 Rad8 21. Qa5 b6 22. dxe6 Qxe6 23. Qd2 Ne5 24. d4 Nc4 25. Qd3 Qe3+ 26. Qxe3 Nxe3 27. Rf3 Nxg2 28. Kxg2 Bxd4 29. Nxd4 Rxd4 30. Rxf8+ Kxf8 31. Rc8+ 1/2-1/2

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.08"]
[Round "4"]
[White "Kostanski, Marcin"]
[Black "Chmielarz, Maciej"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "1956"]
[BlackElo "1722"]
[PlyCount "78"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Krosno KKSz Urania U19"]
[BlackTeam "Ostrow Wielkopolski II"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Be7 7. b3 0-0 8. Bb2 Qc7 9. Bd3 h6 10. 0-0 Re8 11. Rac1 Bf8 12. Qe2 dxc4 13. Bxc4 Nb6 14. Bd3 Nbd5 15. Nxd5 exd5 16. h3 Ne4 17. Ne5 Be6 18. a3 f6 19. Nf3 Bd6 20. b4 a6 21. Qc2 Qc8 22. Bxe4 dxe4 23. Qxe4 Bxh3 24. Qh4 Bg4 25. Nd2 Bf5 26. e4 Bd7 27. Nc4 Bc7 28. Rfe1 Kh7 29. e5 g5 30. Qh5 Rf8 31. exf6 Rxf6 32. Re7+ Kg8 33. Rce1 Bd8 34. R7e3 Bc7 35. d5 Qf8 36. Re6 Bxe6 37. Rxe6 Rxe6 38. dxe6 Qf5 39. g3 Qxe6 0-1

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.06"]
[Round "2"]
[White "Kostanski, Marcin"]
[Black "Obrusnik, Michal"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1956"]
[BlackElo "2196"]
[PlyCount "186"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]
[WhiteTeam "Krosno KKSz Urania U19"]
[BlackTeam "Raciborz KSz Silesia U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. Bg2 d5 5. 0-0 Nc6 6. b3 Be7 7. Bb2 0-0 8. Nbd2 b6 9. c4 Bb7 10. Rc1 Rc8 11. cxd5 exd5 12. Re1 Ne4 13. dxc5 Bxc5 14. Nxe4 dxe4 15. Ne5 Nxe5 16. Bxe5 e3 17. f4 Bxg2 18. Kxg2 Qe7 19. Qd5 Rcd8 20. Qc4 Qb7+ 21. Kg1 a5 22. Rf1 Qd5 23. Qb5 Qd7 24. Qc4 Qf5 25. a4 Rd2 26. Kg2 Rfd8 27. Rfe1 h5 28. h3 Kh7 29. Bc3 R2d5 30. Rf1 Ba3 31. Ra1 Rc8 32. Qa6 Rxc3 33. Rxa3 Qe4+ 34. Rf3 Rc2 35. Ra1 Rdd2 36. Re1 Qd3 37. Qxd3+ Rxd3 38. g4 hxg4 39. hxg4 Rxb3 40. Rh3+ Kg6 41. Kf3 Rc4 42. Rd1 Rc6 43. Rd4 Rb4 44. Rxb4 axb4 45. Rh1 Rc3 46. Rb1 b3 47. Ke4 Rc4+ 48. Kxe3 Rb4 49. Rb2 f5 50. Kf3 Kf6 51. e3 g6 52. g5+ Ke6 53. Ke2 Kd5 54. Kd3 Kc5 55. Kc3 Re4 56. Re2 Rxa4 57. Kxb3 b5 58. Rd2 Re4 59. Rc2+ Rc4 60. Rc3 b4 61. Rd3 Re4 62. Kb2 Kc4 63. Rd6 Rxe3 64. Rc6+ Kd5 65. Rxg6 Rf3 66. Rb6 Rxf4 67. Kb3 Kc5 68. Re6 Rf3+ 69. Kb2 Kc4 70. Rc6+ Kd5 71. Rb6 Rg3 72. Rb5+ Kc4 73. Rxf5 Rg2+ 74. Kb1 Kb3 75. Rf3+ Ka4 76. Rf7 Ka3 77. Ra7+ Kb3 78. Kc1 Rxg5 79. Ra8 Rg1+ 80. Kd2 Kb2 81. Rb8 b3 82. Rb7 Rg8 83. Rb6 Rd8+ 84. Ke2 Kc2 85. Rc6+ Kb1 86. Ra6 b2 87. Ra7 Rd4 88. Ke3 Rd1 89. Ra6 Rd7 90. Ra8 Kc1 91. Rc8+ Kd1 92. Rb8 Rd2 93. Rb7 Kc1 0-1

[Event "POL-chT U19 2nd League"]
[Site "Chelm Lubelski"]
[Date "2010.07.06"]
[Round "1"]
[White "Luka, Krzysztof"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1897"]
[BlackElo "1956"]
[PlyCount "163"]
[EventDate "2010.07.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Rzeszow Staroniwa U19"]
[BlackTeam "Krosno KKSz Urania U19"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. Bd3 e5 7. d5 Nbd7 8. Bg5 h6 9. Bd2 Nh5 10. Bc2 Nf4 11. 0-0 g5 12. g3 Ng6 13. b4 a5 14. a3 Nb6 15. c5 Nc4 16. Bb3 Nxd2 17. Nxd2 Bh3 18. Re1 axb4 19. axb4 Rxa1 20. Qxa1 Qc8 21. Rc1 Nf4 22. Qb1 Rd8 23. Bd1 Ng6 24. cxd6 cxd6 25. Nb5 Qb8 26. Nc4 Bf8 27. Nb6 Bd7 28. Nxd7 Rxd7 29. Bg4 Rd8 30. Qc2 Be7 31. Qc7 Qa8 32. Qa5 Qxa5 33. bxa5 Ra8 34. Rc8+ Rxc8 35. Bxc8 Bd8 36. Nxd6 Bxa5 37. Bxb7 Kf8 38. Nc4 Bc3 39. Ne3 Bb4 40. Bc8 h5 41. Kf1 Ke7 42. Bf5 Nf8 43. Ke2 f6 44. Kd3 Be1 45. f3 Bf2 46. Nc4 Nd7 47. Bxd7 Kxd7 48. g4 hxg4 49. fxg4 Bd4 50. Nd2 Kd6 51. Kc4 Bg1 52. h3 Be3 53. Nb3 Bb6 54. Kb5 Be3 55. Na5 Kc7 56. Nc6 Kd7 57. Ka6 Bc5 58. Na5 Kc7 59. Kb5 Ba3 60. Nc4 Bf8 61. Ne3 Bd6 62. Nf5 Bf8 63. Kc4 Kb6 64. Kd3 Kc7 65. Ke3 Bb4 66. h4 gxh4 67. Nxh4 Ba3 68. Kf2 Bc1 69. Kg3 Be3 70. Nf3 Kd6 71. Kh4 Ke7 72. Kh5 Kf7 73. Nh4 Bc5 74. Nf5 Bf8 75. g5 fxg5 76. Kxg5 Bc5 77. Nh6+ Ke7 78. Kf5 Bd4 79. Kg6 Bc3 80. Nf5+ Kd7 81. Kf6 Bb2 82. Nh6 1-0

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.04.06"]
[Round "11"]
[White "Marchlewicz, Damian"]
[Black "Kostanski, Marcin"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "1841"]
[BlackElo "1909"]
[PlyCount "29"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Nd5 Nxd5 11. cxd5 c6 12. Bc4 Bd7 13. 0-0-0 cxd5 14. Bxd5 Bc6 15. Bxc6 1/2-1/2

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.04.05"]
[Round "10"]
[White "Kostanski, Marcin"]
[Black "Misztal, Piotr"]
[Result "0-1"]
[ECO "E99"]
[WhiteElo "1909"]
[BlackElo "1781"]
[PlyCount "78"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Nb5 b6 14. b4 a6 15. Nc3 Rf6 16. Nd3 Rh6 17. c5 Qe8 18. g4 fxg3 19. Bxg3 Ng6 20. cxd6 cxd6 21. Rc1 Nf4 22. Nf2 Nf6 23. Qd2 N6h5 24. Ng4 Rg6 25. Nd1 Nxe2+ 26. Qxe2 Nf4 27. Qc2 h5 28. Nge3 Bh3 29. Re1 Rc8 30. Nc3 h4 31. Bf2 g4 32. fxg4 Bxg4 33. Nxg4 Rxg4+ 34. Kh1 Rg2 35. Rg1 Qg6 36. Qd2 Rxc3 37. Rxc3 Qxe4 38. Rc8+ Bf8 39. Be3 Rg6+ 0-1

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.04.04"]
[Round "9"]
[White "Kostanski, Marcin"]
[Black "Borowicz, Przemyslaw"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "1909"]
[BlackElo "1989"]
[PlyCount "108"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Bd6 6. Qc2 Nbd7 7. b3 0-0 8. Bd3 Qe7 9. Bb2 e5 10. cxd5 cxd5 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. Ne2 Bd7 14. Bxe5 Qxe5 15. Rd1 Rac8 16. Qd2 Rfe8 17. h3 Bf5 18. Bxf5 Qxf5 19. Nd4 Qg5 20. 0-0 b6 21. Rc1 Ne4 22. Qd3 Rc5 23. Rc2 Rec8 24. Rfc1 Qh4 25. Nf5 Qg5 26. Nd4 h6 27. b4 Rxc2 28. Rxc2 Rxc2 29. Qxc2 Qe5 30. Qc6 Qd6 31. Qe8+ Qf8 32. Qa4 Qe7 33. Nc6 Qf6 34. Qc2 Nxf2 35. Nxa7 Ne4 36. Nb5 Qa1+ 37. Kh2 Qe5+ 38. Kg1 Ng3 39. Kf2 Nf5 40. Qd2 Qg3+ 41. Kg1 Nxe3 42. Nd4 Nc4 43. Qe2 Qc3 44. Nf5 Ne5 45. Qb5 Qc1+ 46. Qf1 Qg5 47. Nd6 Qe7 48. Nf5 Qxb4 49. Kh1 d4 50. Qc1 d3 51. Qc8+ Kh7 52. Qd8 Qe1+ 53. Kh2 d2 54. Ne7 Nf3+ 0-1

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.04.03"]
[Round "8"]
[White "Matuszczyk, Przemyslaw"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "1975"]
[BlackElo "1909"]
[PlyCount "89"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Bg5 e6 9. 0-0-0 Be7 10. Rhe1 Qa5 11. Qd2 0-0 12. Nd4 Rac8 13. Kb1 b5 14. Nd5 Qd8 15. Nxe7+ Qxe7 16. f4 Qb7 17. Bxf6 gxf6 18. f5 Qe7 19. Qh6 Kh8 20. Rd3 Rg8 21. Rh3 Rg7 22. g4 e5 23. Nxc6 Rxc6 24. Ree3 d5 25. Rh5 Kg8 26. exd5 Rd6 27. Reh3 Qd7 28. a3 a5 29. Ka2 Qb7 30. Rd3 Qb6 31. Rf3 Qc5 32. Qd2 Qxd5+ 33. Qxd5 Rxd5 34. h3 Rg5 35. Rh4 Rd4 36. Rg3 Rg7 37. Rh6 Rd6 38. Rd3 Rxd3 39. cxd3 Kf8 40. Rxf6 h5 41. Rb6 Ke8 42. Rxb5 hxg4 43. hxg4 Rxg4 44. Rxe5+ Kd7 45. Rxa5 1-0

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.04.02"]
[Round "6"]
[White "Kostanski, Marcin"]
[Black "Sabuk, Piotr"]
[Result "1-0"]
[ECO "A70"]
[WhiteElo "1909"]
[BlackElo "1996"]
[PlyCount "143"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. e4 Bg7 8. Bd3 0-0 9. h3 a6 10. a4 Re8 11. 0-0 c4 12. Bc2 Nbd7 13. Re1 Rb8 14. Bf4 Qc7 15. Qd2 Ne5 16. Nxe5 dxe5 17. Be3 b5 18. axb5 axb5 19. Ra7 Qd6 20. Rea1 Nh5 21. R1a5 Bd7 22. R5a6 Qe7 23. d6 Qd8 24. Nd5 Nf4 25. Ne7+ Kf8 26. Qa5 Ne2+ 27. Kf1 Nd4 28. Bd1 Qxa5 29. Rxa5 Red8 30. Rc7 Be8 31. Ra6 Ra8 32. Rxa8 Rxa8 33. Rc8 Rxc8 34. Nxc8 b4 35. Nb6 Bb5 36. Ke1 Ke8 37. Nd5 Kd7 38. Nxb4 Kxd6 39. Kd2 f5 40. Kc3 fxe4 41. Nc2 Kd5 42. Nb4+ Kd6 43. Nc2 Ne6 44. Na3 Ba6 45. Nxc4+ Kc6 46. Be2 Bc8 47. b4 Nf4 48. Na5+ Kc7 49. Bc4 Nxg2 50. Bc5 Nf4 51. b5 Bb7 52. b6+ Kc8 53. Kb4 Nd5+ 54. Kb5 Nc3+ 55. Kb4 Nd5+ 56. Ka4 Nc3+ 57. Kb3 Nd1 58. Kc2 e3 59. Kxd1 Bf3+ 60. Ke1 exf2+ 61. Kxf2 Bh1 62. Ba6+ Kd7 63. b7 Bxb7 64. Bxb7 Ke6 65. Kf3 h5 66. Be3 Bf6 67. Bc8+ Kf7 68. Nc4 g5 69. Nd6+ Kg6 70. Bf5+ Kh6 71. Nf7+ Kg7 72. Nxg5 1-0

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.04.02"]
[Round "7"]
[White "Witek, Tomasz"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "2113"]
[BlackElo "1909"]
[PlyCount "61"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. Bg5 d6 6. e3 Bf5 7. Be2 c5 8. d5 Na6 9. Nd2 Nc7 10. 0-0 Rb8 11. a4 h6 12. Bh4 a6 13. e4 Bd7 14. f4 Nfe8 15. Bg3 b5 16. axb5 axb5 17. e5 bxc4 18. Nxc4 Nb5 19. Nxb5 Bxb5 20. Na5 Nc7 21. Bxb5 Rxb5 22. Nc6 Qd7 23. Ra7 Ra8 24. Rxa8+ Nxa8 25. Bh4 Bf8 26. f5 gxf5 27. e6 fxe6 28. Qh5 exd5 29. Qg6+ Bg7 30. Nxe7+ Kh8 31. Qf7 1-0

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.04.01"]
[Round "5"]
[White "Koziej, Maciej"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "E76"]
[WhiteElo "2010"]
[BlackElo "1909"]
[PlyCount "80"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 c5 7. dxc5 dxc5 8. Bd3 Nc6 9. e5 Ne8 10. Be3 b6 11. Be4 Bb7 12. 0-0 f5 13. Bd5+ Kh8 14. Ng5 Nc7 15. Qf3 Qe8 16. Qh3 h6 17. e6 Nd8 18. Nf7+ Kh7 19. Bxb7 Nxb7 20. Nd5 Nxd5 21. cxd5 Rxf7 22. exf7 Qxf7 23. Qf3 Bxb2 24. Rab1 Bf6 25. Rfd1 Nd6 26. Rbc1 Rd8 27. Bf2 Ne4 28. Qa3 Rxd5 29. Rxd5 Qxd5 30. Qb3 Qxb3 31. axb3 Nd2 32. Rd1 Nxb3 33. Rd7 c4 34. Rxa7 c3 35. Rc7 b5 36. Kf1 Nd2+ 37. Ke2 b4 38. Be3 b3 39. Rb7 b2 40. Bxd2 c2 0-1

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.03.31"]
[Round "3"]
[White "Klekowski, Maciej"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "A65"]
[WhiteElo "2177"]
[BlackElo "1909"]
[PlyCount "77"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 0-0 6. Be3 c5 7. d5 e6 8. Qd2 exd5 9. cxd5 a6 10. a4 Re8 11. Bd3 Qa5 12. Nge2 b5 13. 0-0 b4 14. Nd1 Nbd7 15. Nf2 Ne5 16. b3 Bb7 17. Rac1 Re7 18. Ng3 Nxd3 19. Qxd3 Nd7 20. Qd2 Qb6 21. Bh6 Bh8 22. a5 Qd8 23. Nf5 Ne5 24. Nxe7+ Qxe7 25. f4 Nd7 26. Bg5 Qf8 27. Ng4 Bd4+ 28. Kh1 f6 29. Bh4 Re8 30. e5 Bxd5 31. Nxf6+ Nxf6 32. Bxf6 Be4 33. f5 gxf5 34. Qg5+ Kf7 35. Rxf5 Ke6 36. Rf4 Bg6 37. Qg4+ Kd5 38. Qf3+ Ke6 39. Bg5 1-0

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.03.31"]
[Round "4"]
[White "Kostanski, Marcin"]
[Black "Tokarski, Bartosz"]
[Result "0-1"]
[ECO "E99"]
[WhiteElo "1909"]
[BlackElo "2138"]
[PlyCount "66"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Rc1 Ng6 14. Nd3 Nh4 15. c5 Nf6 16. cxd6 cxd6 17. Nb5 Ne8 18. Nxa7 Bd7 19. Qb3 g4 20. Qxb7 gxf3 21. Bxf3 Nxf3+ 22. gxf3 Bh3 23. Kh1 Bxf1 24. Nc6 Qg5 25. Rxf1 Rxa2 26. Ne7+ Kh8 27. Nf5 Qh5 28. Ne1 Bf6 29. Rg1 Ra1 30. Qc8 Rxe1 31. Rxe1 Qxf3+ 32. Kg1 Rg8+ 33. Kf1 Qd3+ 0-1

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.03.30"]
[Round "2"]
[White "Kostanski, Marcin"]
[Black "Obrusnik, Michal"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "1909"]
[BlackElo "2029"]
[PlyCount "65"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. b3 0-0 8. Bb2 dxc4 9. Bxc4 e5 10. 0-0 exd4 11. Nxd4 Ne5 12. Be2 Nfg4 13. h3 Nh6 14. Rfd1 Qe7 15. Ne4 Ba3 16. Bxa3 Qxa3 17. Ng5 Ng6 18. Qe4 Qe7 19. Qxe7 Nxe7 20. g4 g6 21. Rd2 Kg7 22. Rad1 Nhg8 23. Ne4 Nf6 24. Nxf6 Kxf6 25. Nf3 Be6 26. Bc4 Bd5 27. Kg2 Rfe8 28. Kg3 g5 29. Nd4 Rad8 30. Bd3 Ng6 31. Bxg6 hxg6 32. Ne2 Ke6 33. e4 1-0

[Event "POL-ch U16"]
[Site "Leba"]
[Date "2008.03.29"]
[Round "1"]
[White "Bebel, Arkadiusz"]
[Black "Kostanski, Marcin"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2152"]
[BlackElo "1909"]
[PlyCount "109"]
[EventDate "2008.03.29"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 123 Extra"]
[Source "ChessBase"]
[SourceDate "2008.05.06"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.06"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. d4 cxd4 6. Bc4 Nb6 7. Bb3 d5 8. exd6 Qxd6 9. 0-0 Bf5 10. cxd4 Rd8 11. Nc3 e6 12. Nb5 Qd7 13. Bf4 Be7 14. d5 Nxd5 15. Bxd5 exd5 16. Nc7+ Kf8 17. Qb3 Na5 18. Qc3 Nc4 19. Rad1 Be4 20. Rfe1 Bxf3 21. Qxf3 Nb6 22. Bg3 Kg8 23. Qe3 Bb4 24. Re2 h5 25. a3 Bf8 26. Bf4 Rc8 27. Qe5 f6 28. Qe6+ Qxe6 29. Nxe6 Kf7 30. Bc7 Na8 31. Rxd5 Nxc7 32. Rd7+ Kg6 33. Rxc7 Rxc7 34. Nxc7 Bd6 35. Nb5 Rc8 36. g3 Bb8 37. Rd2 a6 38. Nd4 Rc7 39. Re2 Ba7 40. Ne6 Rc8 41. Kg2 Kh6 42. h4 g5 43. hxg5+ fxg5 44. Rd2 Kg6 45. Kf3 Rc6 46. Nf8+ Kf7 47. Nd7 Ke6 48. Nf8+ Kf7 49. Nh7 Kg6 50. Rd7 g4+ 51. Ke4 Bxf2 52. Nf8+ Kf6 53. Nh7+ Kg6 54. Nf8+ Kf6 55. Nh7+ 1/2-1/2

[Event "POL-ch sf"]
[Site "Chotowa"]
[Date "2007.11.11"]
[Round "9.23"]
[White "Kostanski, Marcin"]
[Black "Peronczyk, Karol"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1910"]
[BlackElo "1672"]
[PlyCount "115"]
[EventDate "2007.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. 0-0 c5 5. d3 Nc6 6. Nbd2 Be7 7. e4 0-0 8. Ne1 e5 9. f4 exf4 10. gxf4 Bg4 11. Nef3 Qd7 12. e5 Nh5 13. Nb1 g6 14. Nc3 Rab8 15. Ne2 Bh3 16. Ng3 Nxg3 17. hxg3 Qg4 18. Kh2 Bxg2 19. Kxg2 c4 20. Be3 Rfd8 21. Nd4 Qc8 22. Rh1 Bc5 23. Qg1 Nxd4 24. Bxd4 Bxd4 25. Qxd4 Qf5 26. Rhd1 Rbc8 27. c3 cxd3 28. Qxd3 Qg4 29. Qf3 Qe6 30. Rd4 Rc4 31. Rad1 Rxd4 32. Rxd4 Rd7 33. Qd1 Qc6 34. Kh2 b5 35. g4 Qe6 36. Qe2 a6 37. Kg3 Kf8 38. g5 Kg8 39. Qd2 Kf8 40. Qd1 Qc6 41. Qf3 Qc5 42. f5 Qe7 43. Kf4 gxf5 44. Rxd5 Rxd5 45. Qxd5 Qe6 46. Qd8+ Kg7 47. b3 Qg6 48. Qd7 Qe6 49. Qd3 Qc6 50. Qd4 Qe6 51. c4 Kg8 52. c5 Kf8 53. Qd8+ Kg7 54. Qf6+ Kf8 55. c6 Qd5 56. Qd6+ Qxd6 57. exd6 Ke8 58. Kxf5 1-0

[Event "POL-ch sf"]
[Site "Chotowa"]
[Date "2007.11.10"]
[Round "8.22"]
[White "Spicak, Krzysztof"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2080"]
[BlackElo "1910"]
[PlyCount "90"]
[EventDate "2007.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. b4 d5 2. Bb2 Nf6 3. Nf3 e6 4. b5 c5 5. e3 Be7 6. Be2 0-0 7. 0-0 Nbd7 8. c4 Qc7 9. Nc3 b6 10. cxd5 exd5 11. d4 c4 12. Qc2 Bd6 13. h3 Re8 14. Nd2 Bb7 15. Rac1 Bb4 16. a3 Ba5 17. Bf3 Re6 18. Qf5 Rae8 19. Rfd1 Bxc3 20. Bxc3 Nf8 21. Bb4 Ng6 22. Qc2 Nh4 23. Be2 Ne4 24. Nxe4 Rxe4 25. Rf1 Qd7 26. a4 Qf5 27. Kh1 Bc8 28. Bd6 Qh5 29. Bg3 g5 30. Rfe1 Nf5 31. Bh2 Nxd4 32. Qc3 Nb3 33. Rcd1 Bb7 34. Kg1 Qh6 35. f3 R4e7 36. e4 Qg7 37. e5 Rc8 38. Kh1 Nc5 39. Bg1 Ne6 40. a5 Nc5 41. axb6 axb6 42. Ra1 Ree8 43. Rab1 Qf8 44. Bd4 Ra8 45. Qd2 h6 1-0

[Event "POL-ch sf"]
[Site "Chotowa"]
[Date "2007.11.09"]
[Round "7.19"]
[White "Kostanski, Marcin"]
[Black "Sygulski, Pawel"]
[Result "0-1"]
[ECO "E18"]
[WhiteElo "1856"]
[BlackElo "2189"]
[PlyCount "126"]
[EventDate "2007.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 c5 8. dxc5 bxc5 9. b3 d5 10. cxd5 Nxd5 11. Bb2 Bf6 12. Na4 Bxb2 13. Nxb2 Nd7 14. Qd2 N7f6 15. Ne5 Qc7 16. Nbc4 Rfd8 17. Qa5 Qe7 18. Rac1 Nb4 19. Rfd1 Bxg2 20. Kxg2 Rxd1 21. Rxd1 h5 22. Nd6 Nbd5 23. Qxc5 Rd8 24. Nec4 Ne8 25. e4 Nxd6 26. exd5 Nf5 27. Qxe7 Nxe7 28. d6 Nd5 29. Kf3 f6 30. Rd2 Kf7 31. Ke4 Ke8 32. f4 g6 33. Kd4 Kd7 34. a3 h4 35. Kc5 Rb8 36. b4 Rc8+ 37. Kd4 Rh8 38. Ne3 Kxd6 39. Ke4 f5+ 40. Kf3 hxg3 41. hxg3 Rc8 42. Rc2 Rxc2 43. Nxc2 e5 44. fxe5+ Kxe5 45. Ne3 Nb6 46. Ng2 g5 47. Ne3 g4+ 48. Ke2 Ke4 49. Ng2 Nd5 50. Nh4 Nc3+ 51. Kf2 Nb5 52. a4 Nc3 53. a5 a6 54. Ng6 Nd5 55. Nf8 Nxb4 56. Nd7 Kd4 57. Nb8 Kc4 58. Ke2 Kb5 59. Ke3 Nd5+ 60. Kd4 f4 61. Kxd5 f3 62. Nc6 f2 63. Nd4+ Kxa5 0-1

[Event "POL-ch sf"]
[Site "Chotowa"]
[Date "2007.11.08"]
[Round "6"]
[White "Gora, Jan"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1620"]
[BlackElo "1856"]
[PlyCount "62"]
[EventDate "2007.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 0-0 10. 0-0-0 b5 11. g4 Nbd7 12. Nd5 Bxd5 13. exd5 Nb6 14. Bxb6 Qxb6 15. h4 a5 16. a3 a4 17. Na1 Rfc8 18. Kb1 Rc5 19. Qf2 b4 20. Qe3 bxa3 21. Qxa3 Nxd5 22. Kc1 Rb8 23. Qa2 Ne3 24. Re1 Nxf1 25. Rexf1 d5 26. Re1 d4 27. b3 d3 28. bxa4 Qb4 29. Ref1 Qf4+ 30. Kd1 dxc2+ 31. Nxc2 Rd8+ 0-1

[Event "POL-ch sf"]
[Site "Chotowa"]
[Date "2007.11.07"]
[Round "5"]
[White "Kostanski, Marcin"]
[Black "Mucha, Roman"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "1856"]
[BlackElo "2088"]
[PlyCount "120"]
[EventDate "2007.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. c4 d6 4. Nc3 e5 5. e4 exd4 6. Nxd4 Ne7 7. Be2 Nbc6 8. Be3 0-0 9. 0-0 f5 10. f3 f4 11. Bf2 Bxd4 12. Bxd4 Nxd4 13. Qxd4 Nc6 14. Qd2 Be6 15. Nd5 g5 16. Rac1 Ne5 17. b3 Rf7 18. Rfd1 Qf8 19. Nb4 b6 20. Nd3 Ng6 21. b4 c5 22. a3 Qg7 23. Nf2 Rd7 24. Qc2 Ne5 25. b5 Kf8 26. Nd3 Rad8 27. Nxe5 dxe5 28. Rxd7 Rxd7 29. Rd1 Rd4 30. Rxd4 exd4 31. h3 Ke7 32. Bd3 h5 33. Qf2 Qg8 34. Qf1 Qg7 35. Qf2 Qf7 36. Qe2 g4 37. hxg4 hxg4 38. fxg4 Qg7 39. Qf3 Qg5 40. g3 fxg3 41. Qxg3 Kd7 42. Qf3 Bxg4 43. Qf7+ Kd8 44. Qd5+ Qxd5 45. exd5 Ke7 46. Kf2 Kf6 47. Kg3 Kg5 48. d6 Bd7 49. Kf3 Kf6 50. Kf4 Ke6 51. Kg5 Kxd6 52. Kf6 Bh3 53. Be2 Bc8 54. Bd3 a6 55. bxa6 Bxa6 56. Kf5 Bb7 57. Bf1 Bc6 58. Be2 Ba4 59. Bd3 Bb3 60. Kf6 b5 0-1

[Event "POL-ch sf"]
[Site "Chotowa"]
[Date "2007.11.05"]
[Round "3"]
[White "Lis, Marek"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "1991"]
[BlackElo "1856"]
[PlyCount "65"]
[EventDate "2007.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Bg5 e6 9. 0-0-0 Be7 10. h4 0-0 11. Qd3 Qc7 12. Nd4 a6 13. f4 Rfd8 14. Bxf6 Bxf6 15. g4 b5 16. g5 Be7 17. Kb1 b4 18. Nce2 d5 19. e5 Bb5 20. Nxb5 axb5 21. Qxb5 Rdb8 22. Qd3 Qa7 23. Nc1 Rc8 24. h5 Rc4 25. Rdf1 Rac8 26. g6 fxg6 27. hxg6 h6 28. f5 Rc3 29. Qd1 Rxc2 30. Nb3 Qe3 31. Qd4 Qe2 32. f6 R8c4 33. fxe7 1-0

[Event "POL-ch sf"]
[Site "Chotowa"]
[Date "2007.11.04"]
[Round "2"]
[White "Kostanski, Marcin"]
[Black "Klim, Kamil"]
[Result "0-1"]
[ECO "E97"]
[WhiteElo "1856"]
[BlackElo "2126"]
[PlyCount "80"]
[EventDate "2007.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 Nh5 10. Re1 f5 11. Bf1 a5 12. Ba3 Nf6 13. Nd2 Bh6 14. bxa5 c5 15. dxc6 bxc6 16. Nb3 c5 17. Nb5 Ra6 18. exf5 Nxf5 19. Bd3 Nd4 20. N5xd4 exd4 21. h3 Nh5 22. Bc1 Bg7 23. Qe2 Ra7 24. Bd2 Be5 25. Nxc5 Nf4 26. Bxf4 Rxf4 27. Ne4 Rf8 28. c5 d5 29. Nd2 Re7 30. Kh1 Rff7 31. Nf3 Bc7 32. Qf1 Rxe1 33. Qxe1 Rxf3 34. gxf3 Bxh3 35. f4 Qh4 36. f3 Qxf4 37. Qe2 Qh4 38. Kg1 Bf4 39. a6 Be3+ 40. Kh1 Bg4+ 0-1

[Event "POL-ch sf"]
[Site "Chotowa"]
[Date "2007.11.03"]
[Round "1"]
[White "Sygulski, Boguslaw"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2248"]
[BlackElo "1856"]
[PlyCount "113"]
[EventDate "2007.11.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 Be7 8. Qd2 b5 9. a4 b4 10. Na2 e5 11. Nf5 Bxf5 12. exf5 a5 13. Bb5+ Nbd7 14. c3 bxc3 15. Nxc3 0-0 16. 0-0 Nb6 17. Kh1 Rc8 18. b3 Qc7 19. Rac1 Qb7 20. Ne4 Nbd5 21. Nxf6+ Bxf6 22. Bf2 e4 23. fxe4 Nc3 24. Qxd6 Nxe4 25. Qb6 Nxf2+ 26. Qxf2 h6 27. Rc4 Be7 28. Qg3 Bf6 29. Rfc1 Bg5 30. Re1 Rfd8 31. h3 Rxc4 32. bxc4 Rd2 33. c5 Bf4 34. Qg4 Bg5 35. Qe4 Qxe4 36. Rxe4 Rc2 37. c6 Rc5 38. g4 h5 39. h4 Bxh4 40. gxh5 Bg5 41. Re8+ Kh7 42. Rf8 Bf4 43. Rxf7 Kh6 44. Kg2 Kxh5 45. Kf3 Be5 46. Ke4 Kg5 47. Re7 Bf6 48. Re6 Rc1 49. Kd5 Kxf5 50. Bd3+ Kf4 51. Rxf6+ gxf6 52. Bc4 Rd1+ 53. Kc5 Rd8 54. Ba6 Ke5 55. c7 Rd5+ 56. Kb6 Rd6+ 57. Kxa5 1-0

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "1"]
[White "Dudel, Michal"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "38"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6 bxc6 6. Qd4 f6 7. Bc4 e5 8. Qd3 Bc5 9. Bxg8 Rxg8 10. Qc4 Qa5+ 11. Bd2 d5 12. exd5 cxd5 13. Qxd5 Bxf2+ 14. Kxf2 Qxd5 15. Be3 Bb7 16. Rg1 Qe4 17. Nd2 Qf5+ 18. Ke2 Rd8 19. Raf1 Ba6+ 0-1

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "5"]
[White "Kadziela, Konrad"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "B32"]
[PlyCount "86"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nf3 Nf6 6. Bd3 d5 7. exd5 Nxd5 8. Be4 Nde7 9. Qxd8+ Kxd8 10. c3 f5 11. Bc2 h6 12. Be3 Be6 13. Bc5 Kc7 14. Nbd2 b6 15. Ba3 g5 16. Bb3 Nd5 17. Bxf8 Rhxf8 18. 0-0-0 e4 19. Ne1 Rad8 20. Nc2 Nf4 21. Bxe6 Nxe6 22. g3 Nc5 23. Rhf1 Nd3+ 24. Kb1 Nce5 25. Nd4 Rf6 26. Nb5+ Kb7 27. Nd4 Ng4 28. f3 Ne3 29. fxe4 Nxd1 30. Rxd1 Nc5 31. exf5 Re8 32. g4 Re3 33. N2f3 Rd3 34. Re1 a5 35. Kc2 b5 36. b4 axb4 37. cxb4 Rd6 38. bxc5 R6xd4 39. Nxd4 Rxd4 40. h3 Rc4+ 41. Kb2 Rxc5 42. Re6 Rc6 43. Rxc6 Kxc6 1-0

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "11"]
[White "Kolosowski, Mateusz"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "21"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 g6 5. Bc4 Bg7 6. 0-0 e6 7. d3 Nge7 8. Qe1 0-0 9. f5 Nd4 10. Qh4 Nxf3+ 11. Rxf3 1-0

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "2"]
[White "Kostanski, Marcin"]
[Black "Bebel, Arkadiusz"]
[Result "0-1"]
[ECO "A60"]
[PlyCount "50"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. Nxd5 Nxd5 6. cxd5 d6 7. Nf3 Nd7 8. Bd2 Nf6 9. Bc3 b5 10. b3 g6 11. e3 a6 12. Be2 Bg7 13. 0-0 0-0 14. Nd2 b4 15. Bxf6 Qxf6 16. Rc1 Bb7 17. e4 Rae8 18. f3 Qe7 19. Qc2 f5 20. Bc4 Bd4+ 21. Kh1 f4 22. Qd3 Qh4 23. Rfe1 Re5 24. Nf1 Rh5 25. Rc2 Qxe1 0-1

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "6"]
[White "Kostanski, Marcin"]
[Black "Klim, Kamil"]
[Result "1-0"]
[ECO "E11"]
[PlyCount "151"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Qxd2 0-0 7. Nc3 d6 8. e3 e5 9. dxe5 dxe5 10. Rd1 Nc6 11. Qc2 e4 12. Nd4 Nxd4 13. Rxd4 Re8 14. Be2 c6 15. 0-0 h5 16. Rfd1 Bg4 17. h3 Bxe2 18. Nxe2 h4 19. b4 c5 20. Rd6 Qe5 21. Qc3 Qxc3 22. Nxc3 cxb4 23. axb4 Rac8 24. R6d4 Kf8 25. Nb5 Re5 26. Nxa7 Ra8 27. Rd8+ Re8 28. Rxe8+ Nxe8 29. Nb5 Ra4 30. Rb1 f5 31. Nd4 g6 32. c5 Nc7 33. b5 Rc4 34. b6 Na6 35. c6 bxc6 36. b7 Nb8 37. Rb6 Rc1+ 38. Kh2 Ke7 39. Rb2 c5 40. Ne2 Rc4 41. Rb6 Rc2 42. Nf4 Kd7 43. Rxg6 Kc7 44. Rg7+ Kc6 45. Ng6 Rb2 46. Nxh4 c4 47. Nxf5 Rxf2 48. Nd4+ Kb6 49. h4 c3 50. h5 Rd2 51. h6 Rxd4 52. exd4 c2 53. h7 c1Q 54. h8Q Qf4+ 55. Kh3 Qf5+ 56. Kg3 Qf6 57. Qg8 Qd6+ 58. Kh3 Qh6+ 59. Kg4 Qd2 60. Qd8+ Ka7 61. Kf5 Qf2+ 62. Kxe4 Qe2+ 63. Kf5 Qf2+ 64. Ke6 Qe3+ 65. Kf7 Qf4+ 66. Kg8 Qf5 67. Qe7 Qd5+ 68. Kh8 Qh5+ 69. Rh7 Qg6 70. Qa3+ Kb6 71. Qb4+ Ka6 72. Qf8 Ka7 73. Rh6 Qd3 74. Qc5+ Kxb7 75. Rh7+ Ka8 76. Ra7# 1-0

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "4"]
[White "Kostanski, Marcin"]
[Black "Leczycki, Pawel"]
[Result "1-0"]
[ECO "D13"]
[PlyCount "111"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 e6 6. Bf4 Nc6 7. e3 Bb4 8. Bd3 0-0 9. 0-0 Bxc3 10. bxc3 a6 11. a4 Nh5 12. Bg3 Nxg3 13. hxg3 Qe7 14. c4 dxc4 15. Bxc4 e5 16. Nxe5 Nxe5 17. dxe5 Qxe5 18. Qb3 Qe7 19. Rfd1 Bf5 20. Rd4 Rab8 21. Rad1 Be6 22. Bxe6 Qxe6 23. Qxe6 fxe6 24. Rd6 Kf7 25. Rb6 Rfe8 26. Rdb1 Re7 27. Rxa6 Rc8 28. Rab6 Rc4 29. a5 Rc5 30. Rxb7 Rxa5 31. R7b5 Rxb5 32. Rxb5 Ra7 33. Rb2 Ra1+ 34. Kh2 Ra5 35. Rb4 Ra2 36. Rf4+ Kg6 37. g4 Ra5 38. Kg3 Kh6 39. Re4 Ra6 40. f4 g6 41. Rd4 Ra3 42. Kf3 Ra6 43. Rd7 g5 44. fxg5+ Kxg5 45. Rxh7 Ra4 46. Rh8 Kg6 47. Rd8 Kf6 48. Rd4 Ra5 49. Rf4+ Kg6 50. Re4 Kf6 51. Kf4 Rb5 52. g5+ Ke7 53. Ra4 Rf5+ 54. Kg4 Rf2 55. g3 Kf7 56. Rf4+ 1-0

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "10"]
[White "Kostanski, Marcin"]
[Black "Mucha, Roman"]
[Result "1/2-1/2"]
[ECO "A65"]
[PlyCount "89"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Bc4 Bg7 8. Nge2 0-0 9. 0-0 a6 10. a4 Nbd7 11. Bf4 Qe7 12. f3 Nh5 13. Be3 Ne5 14. Bb3 f5 15. Bxc5 f4 16. Qd2 g5 17. Bd4 Nf6 18. Bxe5 Qxe5 19. Kf2 Nd7 20. h3 Bf6 21. Rh1 Bd8 22. Rad1 Bb6+ 23. Nd4 Qf6 24. Ke2 Ne5 25. Rhf1 Bd7 26. Ne6 Rf7 27. Ke1 Qh6 28. Nd4 Rc8 29. Rc1 Re7 30. Nce2 Ree8 31. Rxc8 Rxc8 32. Nc3 Qf6 33. Nc2 Qd8 34. Ke2 Qc7 35. Rd1 Qc5 36. Qd4 Qa5 37. Qb4 Qxb4 38. Nxb4 Nc4 39. Nd3 Ne3 40. Rg1 Nc4 41. Rc1 Ne3 42. Rg1 Bd4 43. g4 Bxc3 44. bxc3 Rxc3 45. Rb1 1/2-1/2

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "9"]
[White "Kostanski, Marcin"]
[Black "Orciuch, Leszek"]
[Result "1-0"]
[ECO "E72"]
[PlyCount "61"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 0-0 6. Bg2 c5 7. Nge2 cxd4 8. Nxd4 Qc7 9. b3 Bd7 10. Bb2 a6 11. 0-0 Nc6 12. Nxc6 Bxc6 13. Nd5 Bxd5 14. exd5 Rfe8 15. Qd2 Nh5 16. Rfe1 Bxb2 17. Qxb2 Ng7 18. Re4 e5 19. dxe6 Rxe6 20. Rae1 Rxe4 21. Rxe4 Re8 22. Qe2 Rxe4 23. Qxe4 Ne6 24. Qxb7 Qa5 25. Qb8+ Kg7 26. Qxd6 Qxa2 27. Qe5+ Kg8 28. Bd5 Qxb3 29. Bxe6 Qb1+ 30. Kg2 fxe6 31. Qxe6+ 1-0

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "3"]
[White "Siakowski, Maciej"]
[Black "Kostanski, Marcin"]
[Result "1-0"]
[ECO "A24"]
[PlyCount "51"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 0-0 6. 0-0 e5 7. d4 exd4 8. Nxd4 Nbd7 9. Bg5 h6 10. Bf4 Nh5 11. Be3 Ne5 12. Qb3 Rb8 13. Bd2 f5 14. f4 Ng4 15. Nc6 Qe8 16. Nxb8 Bd4+ 17. Kh1 Nf2+ 18. Rxf2 Bxf2 19. e3 Be6 20. Nd1 Bxg3 21. hxg3 Nxg3+ 22. Kh2 Ne4 23. Bxe4 fxe4 24. Qxb7 Qxb8 25. Qxb8 Rxb8 26. b3 1-0

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "8"]
[White "Sycz, Dariusz"]
[Black "Kostanski, Marcin"]
[Result "1/2-1/2"]
[ECO "A48"]
[PlyCount "39"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. h3 d6 6. Be2 c5 7. c3 b6 8. 0-0 Bb7 9. Nbd2 Nbd7 10. Bd3 Re8 11. Bh2 e5 12. dxe5 Nxe5 13. Bb5 Re7 14. Re1 a6 15. Be2 b5 16. Qc2 Qb6 17. Rad1 Rd8 18. Nf1 Nxf3+ 19. Bxf3 Bxf3 20. gxf3 1/2-1/2

[Event "POL-ch U12"]
[Site "Kolobrzeg"]
[Date "2003.??.??"]
[Round "7"]
[White "Witek, Tomasz"]
[Black "Kostanski, Marcin"]
[Result "0-1"]
[ECO "A48"]
[PlyCount "130"]
[EventDate "2003.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bd3 0-0 6. Nbd2 Re8 7. 0-0 Nh5 8. Re1 Nd7 9. Nc4 c5 10. c3 b5 11. Ncd2 Rb8 12. Bg3 Nxg3 13. hxg3 Bb7 14. Qc2 a6 15. Rad1 Qb6 16. Ne4 h6 17. dxc5 Nxc5 18. Nxc5 Qxc5 19. Nh4 Qg5 20. Be4 d5 21. Nf3 Qh5 22. Bd3 Rbc8 23. Qd2 Qg4 24. Be2 Qd7 25. e4 e6 26. e5 Kh7 27. Bd3 Qc7 28. Kh2 Red8 29. Qe2 Bf8 30. Rh1 Bc5 31. Qd2 Rh8 32. Kg1 Kg7 33. Qf4 Qe7 34. a3 f5 35. Qd2 Qd7 36. Bc2 Qf7 37. Qd3 Rhd8 38. Nd4 Bxd4 39. Qxd4 Rc4 40. Qe3 g5 41. f4 g4 42. Kf2 Rdc8 43. Rd4 Qc7 44. Rhd1 Qe7 45. Bb3 Rxd4 46. Qxd4 Qc5 47. Ke3 Qxd4+ 48. cxd4 a5 49. Kd2 Ba6 50. Rc1 Rxc1 51. Kxc1 Kf7 52. Kd2 Ke7 53. Bc2 Kd7 54. Kc3 Kc6 55. Kd2 Kb6 56. Bd3 Kc6 57. a4 Kb6 58. b4 bxa4 59. bxa5+ Kxa5 60. Bb1 Kb4 61. Kc2 a3 62. Kc1 Bc4 63. Bc2 Kc3 64. Kb1 a2+ 65. Ka1 Bb3 0-1

