[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "4"]
[White "Cordoba Roa, Angel Gabriel"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B97"]
[WhiteElo "2285"]
[BlackElo "2055"]
[PlyCount "61"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Nc6 9. Nb3 Ng4 10. f5 h6 11. Bf4 Nge5 12. 0-0-0 Be7 13. Be2 Qc7 14. Kb1 b5 15. Rhe1 Bb7 16. g4 b4 17. Nd5 exd5 18. exd5 Na5 19. Bxe5 Nxb3 20. axb3 dxe5 21. d6 Bxd6 22. Qxd6 Qxd6 23. Rxd6 Ke7 24. Rb6 Ra7 25. Bc4 f6 26. Re6+ Kd7 27. Rd1+ Kc8 28. Re7 h5 29. gxh5 Rxh5 30. Be6+ Kb8 31. Rd8+ 1-0

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "11"]
[White "Curtis, John"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "2292"]
[BlackElo "2055"]
[PlyCount "85"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bg5 Be7 7. Qe2 a6 8. 0-0-0 Nbd7 9. f4 Qc7 10. Nf3 b5 11. e5 dxe5 12. fxe5 Nd5 13. Nxd5 Bxg5+ 14. Nxg5 exd5 15. e6 Qf4+ 16. Kb1 Qxg5 17. exd7+ Kxd7 18. Qf3 Bb7 19. Qxf7+ Qe7 20. Qxe7+ Kxe7 21. Be2 Rad8 22. Bf3 Kd6 23. c3 Kc5 24. Rhe1 Rhe8 25. b4+ Kd6 26. Kc2 a5 27. a3 axb4 28. axb4 Ra8 29. Rxe8 Rxe8 30. Ra1 Kc7 31. Kd3 Kb6 32. Kd4 Rc8 33. Be2 Re8 34. Bd3 h6 35. Rf1 Re7 36. Rf8 Re1 37. Rf7 g5 38. Rf6+ Kc7 39. Rxh6 Rd1 40. Rg6 g4 41. Rxg4 Bc8 42. Rg7+ Kd6 43. Ke3 1-0

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "8"]
[White "Dwilewicz, Katarzyna"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2098"]
[BlackElo "2055"]
[PlyCount "129"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Be7 7. Bg2 a6 8. 0-0 0-0 9. a4 Qc7 10. Re1 Bd7 11. a5 Nc6 12. Nb3 Rac8 13. Be3 Ne5 14. Nd2 Nc4 15. Nxc4 Qxc4 16. Bf1 Qc7 17. Bb6 Qb8 18. f4 Bc6 19. Bg2 Nd7 20. Bd4 Rfd8 21. Qd2 b5 22. Nd5 Bf8 23. Nb4 Bb7 24. Qf2 Rc4 25. c3 Nc5 26. Qc2 Rc8 27. Bf1 Rxb4 28. cxb4 Nxe4 29. Bc3 d5 30. Qd3 Rc4 31. Qe3 Rc8 32. Bg2 f5 33. Rad1 Qd6 34. Bxe4 fxe4 35. Qxe4 dxe4 36. Rxd6 Bxd6 37. Kf2 Bd5 38. Ke3 Kf7 39. g4 g6 40. h4 Ke8 41. Rh1 h5 42. gxh5 gxh5 43. Rg1 Be7 44. Rg8+ Kf7 45. Rg7+ Kf8 46. Rh7 Bxh4 47. Rh8+ Kf7 48. Rxc8 Be7 49. Rh8 h4 50. Rh7+ Ke8 51. Be5 Bb3 52. Rh8+ Kd7 53. Kxe4 Bc2+ 54. Ke3 Bf5 55. Rh6 h3 56. Kf2 Bxb4 57. Kg3 Bxa5 58. Rh8 Bd2 59. Ra8 a5 60. Ra7+ Kc6 61. Ra6+ Kc5 62. Rd6 Be3 63. Rd1 Kc4 64. Re1 Bd4 65. Rc1+ 1-0

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "1"]
[White "Erzhanov, Arman"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2175"]
[BlackElo "2055"]
[PlyCount "76"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Qe3 Nf6 7. h3 e6 8. 0-0 a6 9. Ba4 b5 10. Bb3 Be7 11. Rd1 Qc7 12. a4 b4 13. Nbd2 0-0 14. Nc4 Na5 15. Nxa5 Qxa5 16. Nd2 Qc7 17. Nc4 Bc6 18. e5 Nd5 19. Qg3 dxe5 20. Nxe5 Bb7 21. Nd3 Qxg3 22. fxg3 Rfd8 23. Bd2 Rac8 24. Rac1 a5 25. Nf4 Bf6 26. Nxd5 Bxd5 27. Bxd5 Rxd5 28. Be3 Bxb2 29. Rxd5 exd5 30. Rd1 d4 31. Bf2 Rxc2 32. Bxd4 Rc1 33. Rxc1 Bxc1 34. Kf1 b3 35. Ke2 b2 36. Bxb2 Bxb2 37. Kd3 Ba3 38. Kc4 Bb4 0-1

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "2"]
[White "Geivondian, Arman"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2297"]
[BlackElo "2055"]
[PlyCount "86"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. e3 g6 3. b3 Bg7 4. Bb2 0-0 5. Be2 c5 6. 0-0 Nc6 7. d4 d6 8. Nbd2 b6 9. Rc1 Bb7 10. Re1 Rc8 11. c4 cxd4 12. exd4 d5 13. c5 Ne4 14. Bd3 bxc5 15. Nxe4 dxe4 16. Bxe4 cxd4 17. Nxd4 Bxd4 18. Ba3 Re8 19. Qf3 Ne5 20. Qf4 Bxe4 21. Qxe4 Rxc1 22. Rxc1 Nd3 23. Rc2 Nxf2 24. Qb7 Bb6 25. Qf3 Qd4 26. Kf1 Ne4 27. Ke1 Qa1+ 28. Bc1 Qd4 29. Rc4 Qg1+ 30. Ke2 Nf6 31. h3 Rd8 32. Bd2 Qb1 33. a4 Qf5 34. a5 Bxa5 35. Be3 Bb6 36. Bd2 Qe5+ 37. Kd1 Ne4 38. Rc2 Nxd2 39. Rxd2 Rxd2+ 40. Kxd2 Qd4+ 41. Kc2 Qf2+ 42. Qxf2 Bxf2 43. Kd3 Bb6 0-1

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "6"]
[White "Kleibel, Uwe"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2302"]
[BlackElo "2055"]
[PlyCount "105"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qe3 Nf6 6. h3 g6 7. Be2 Bg7 8. 0-0 0-0 9. Rd1 Qc7 10. c4 a6 11. Nc3 Be6 12. Rb1 Rfc8 13. b3 Ne5 14. Nxe5 dxe5 15. Bb2 Nd7 16. Rbc1 Nc5 17. Nd5 Bxd5 18. cxd5 Qa5 19. a3 Nd7 20. b4 Qd8 21. Bg4 Rxc1 22. Rxc1 Rc8 23. Rxc8 Qxc8 24. Qc3 Qxc3 25. Bxc3 Nb6 26. Be2 f5 27. f3 Kf8 28. Kf1 e6 29. dxe6 Ke7 30. exf5 gxf5 31. f4 Kxe6 32. fxe5 Bxe5 33. Bxe5 Kxe5 34. Bf3 Nd5 35. Ke2 b6 36. Kd3 Nc7 37. Kc4 Kd6 38. a4 h6 39. Bb7 b5+ 40. axb5 axb5+ 41. Kd4 Ne6+ 42. Ke3 Ke5 43. Bc8 Nd4 44. Kd3 Nc6 45. Bd7 Nxb4+ 46. Ke2 Nd5 47. Kd3 Nf4+ 48. Ke3 Nxg2+ 49. Kf2 Nf4 50. Bxb5 Nxh3+ 51. Kg3 Ng5 52. Be2 Ne6 53. Kh4 1/2-1/2

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "10"]
[White "Zaczek, Jonathon"]
[Black "Georg, Heinz"]
[Result "0-1"]
[ECO "C63"]
[WhiteElo "2055"]
[BlackElo "2118"]
[PlyCount "52"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 Nf6 5. 0-0 d6 6. Nc3 Be7 7. Re1 0-0 8. exf5 Bxf5 9. d4 exd4 10. Nxd4 Nxd4 11. Qxd4 c6 12. Bf1 d5 13. Bg5 Qd7 14. Qd2 Bb4 15. Bxf6 Rxf6 16. a3 Bc5 17. Na4 Bd6 18. b4 Raf8 19. g3 Be4 20. Nc3 Rxf2 21. Qxf2 Rxf2 22. Kxf2 Qf5+ 23. Kg1 Be5 24. Nxe4 Bxa1 25. Nd6 Bd4+ 26. Kg2 Qf2+ 0-1

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "7"]
[White "Zaczek, Jonathon"]
[Black "Marin, Sebastian"]
[Result "1/2-1/2"]
[ECO "D48"]
[WhiteElo "2055"]
[BlackElo "2308"]
[PlyCount "98"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. 0-0 a6 10. b3 c5 11. Bb2 cxd4 12. Nxd4 Be7 13. Rc1 0-0 14. Qe2 Ne5 15. Bb1 Rc8 16. Rfd1 Qb6 17. f4 Ng6 18. g3 Rfd8 19. h4 Bf8 20. h5 Ne7 21. g4 Ned5 22. g5 Nxc3 23. Bxc3 Ne4 24. Bb2 Rxc1 25. Rxc1 Ba8 26. Kh2 Qb7 27. Rg1 g6 28. Rc1 e5 29. hxg6 hxg6 30. Nf3 exf4 31. exf4 Bd6 32. Qxe4 Qxe4 33. Bxe4 Bxe4 34. Ne5 Bxe5 35. Bxe5 Rd2+ 36. Kg3 Rg2+ 37. Kh3 Rc2 38. Rxc2 Bxc2 39. b4 Bb1 40. a3 Bf5+ 41. Kg3 Kf8 42. Kf2 Ke7 43. Ke3 Kd7 44. Kd4 Kc6 45. Bf6 Be6 46. Be5 Bd5 47. Bf6 Be6 48. Be5 Bf5 49. Bf6 Be6 1/2-1/2

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "9"]
[White "Zaczek, Jonathon"]
[Black "Sultanbek, Zeinep"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "2055"]
[BlackElo "2022"]
[PlyCount "68"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Be6 14. h4 Rb8 15. Ne4 Re8 16. h5 f5 17. hxg6 fxe4 18. fxe4 Nf4 19. Qf2 Qg5 20. Kb1 hxg6 21. g3 Nh5 22. Bh3 Qxg3 23. Bxe6+ Rxe6 24. Qe2 Qc3 25. Rd8+ Kf7 26. Rf1+ Nf4 27. Rxb8 Qxc5 28. Qg4 Re7 29. Qc8 Qe3 30. Qg8+ Kf6 31. Rd8 Qxe4 32. Rd6+ Kf5 33. Qb3 Qg2 34. Rfd1 Bf6 0-1

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "5"]
[White "Zaczek, Jonathon"]
[Black "Toncheva, Nadya"]
[Result "0-1"]
[ECO "B37"]
[WhiteElo "2055"]
[BlackElo "2253"]
[PlyCount "76"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 0-0 8. Nc2 d6 9. Be2 Be6 10. 0-0 Rc8 11. Na3 a6 12. Rc1 Qa5 13. f3 Nd7 14. Qd2 Rfe8 15. Rfd1 Nce5 16. Nd5 Qxd2 17. Bxd2 Bxd5 18. cxd5 f5 19. b3 fxe4 20. fxe4 Nc5 21. Bf3 Nxf3+ 22. gxf3 Bb2 23. Nc4 Bxc1 24. Bxc1 b5 25. Ne3 Nd3 26. Bd2 Ne5 27. Kg2 Rf8 28. Rf1 Rf7 29. f4 Nd3 30. Kg3 Kg7 31. h4 h5 32. f5 Nc5 33. Kf4 gxf5 34. Nxf5+ Kh7 35. Rg1 Rg8 36. Rg5 Rxg5 37. hxg5 Kg6 38. Kg3 Nxe4+ 0-1

[Event "Titled Tuesday intern op 19th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.19"]
[Round "3"]
[White "Zaczek, Jonathon"]
[Black "Wieczorek, Oskar"]
[Result "0-1"]
[ECO "B86"]
[WhiteElo "2055"]
[BlackElo "2494"]
[PlyCount "60"]
[EventDate "2023.09.19"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Be7 7. Bb3 0-0 8. g4 d5 9. exd5 Nxd5 10. Nxd5 exd5 11. Be3 Nc6 12. Qf3 Be6 13. 0-0-0 Ne5 14. Qg3 Nc6 15. Nf5 a5 16. a4 Bxf5 17. gxf5 d4 18. Rhg1 Bf6 19. Bh6 Qb8 20. Bxg7 Qxg3 21. Rxg3 Bxg7 22. Rdg1 Kh8 23. Rxg7 Ne5 24. f4 Ng6 25. fxg6 Kxg7 26. gxf7+ Kf6 27. Kd2 Kf5 28. Rg7 h6 29. Rh7 Kg6 30. f5+ Kxh7 0-1

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "11"]
[White "Fominykh, Maria"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2186"]
[BlackElo "2055"]
[PlyCount "53"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 0-0 8. Nf3 Nc6 9. Be2 e5 10. d5 Na5 11. Qc2 c6 12. 0-0 cxd5 13. Bxb6 axb6 14. Nxd5 Bg4 15. Rfd1 Bxf3 16. Bxf3 Nc6 17. Qb3 Nd4 18. Qxb6 Qg5 19. Rd3 Rac8 20. Rad1 Rc2 21. Qxb7 Rc1 22. Kf1 Rfc8 23. Ne7+ Kf8 24. Nxc8 Nxf3 25. Qb4+ Ke8 26. Nd6+ Kf8 27. Nf5+ 1-0

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "1"]
[White "Ghevondyan, Arman"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2216"]
[BlackElo "2055"]
[PlyCount "73"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. b3 c5 7. Bb2 cxd4 8. Nxd4 Nc6 9. Na3 e5 10. Nxc6 bxc6 11. Bxe5 Re8 12. Bb2 Ba6 13. Re1 Qa5 14. c4 Rad8 15. Qc2 Ne4 16. Bxg7 Kxg7 17. Qb2+ Kg8 18. Rac1 dxc4 19. Nxc4 Bxc4 20. bxc4 Rd2 21. Qb7 Qc5 22. Bxe4 Rxe4 23. Qc8+ Kg7 24. e3 Rxa2 25. Rcd1 Rxc4 26. Rd8 Rcc2 27. Rg8+ Kh6 28. Rf1 Rxf2 29. Rxf2 Ra1+ 30. Kg2 Qd5+ 31. Kh3 Qh5+ 32. Kg2 Qd5+ 33. e4 Qxe4+ 34. Kh3 Ra5 35. Qf8+ Kg5 36. Qd8+ Kh5 37. Qxa5+ 1-0

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "8"]
[White "Haitin, Ilja"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2284"]
[BlackElo "2055"]
[PlyCount "70"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. c3 Nc6 7. c4 dxc4 8. Na3 Na5 9. Bd2 Nc6 10. Bc3 Ne4 11. Nxc4 Nxc3 12. bxc3 Rb8 13. Rb1 b6 14. e4 Ba6 15. Nce5 Nxe5 16. Nxe5 Bxe5 17. dxe5 Bxf1 18. Qxf1 e6 19. h4 Qd2 20. Qc4 c5 21. h5 Rfd8 22. h6 Qxh6 23. Qa6 Rd7 24. Bf3 Rbd8 25. Kg2 Qd2 26. Be2 Qxc3 27. Bb5 Rd2 28. Qxa7 Rxf2+ 29. Kh3 Qf3 30. Qe7 Qg2+ 31. Kg4 Qxe4+ 32. Kh3 Qg2+ 33. Kg4 Rd4+ 34. Kg5 Qxg3+ 35. Kh6 Rh4+ 0-1

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "4"]
[White "Rubio Tent, Francisco"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2282"]
[BlackElo "2055"]
[PlyCount "95"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Ne4 4. Bf4 c5 5. c3 Bg7 6. Nbd2 Nxd2 7. Qxd2 b6 8. e3 d6 9. Be2 0-0 10. 0-0 Bb7 11. Rad1 Qc7 12. dxc5 bxc5 13. h3 Nd7 14. Bh2 Nf6 15. Rfe1 Ne4 16. Qc2 Qb6 17. Nd2 Nxd2 18. Rxd2 Bc6 19. a3 a5 20. f3 Rfb8 21. e4 a4 22. Bc4 Ra7 23. Bf4 Rab7 24. Ree2 Bb5 25. Bxb5 Qxb5 26. Bg5 Qc4 27. Qc1 h6 28. Be3 Rb3 29. Rc2 Kh7 30. Kh2 R8b7 31. h4 d5 32. exd5 Qxh4+ 33. Kg1 Qc4 34. Qd2 Rd7 35. Qe1 Rxd5 36. Qf2 e6 37. Rcd2 Bf8 38. Qg3 Rb7 39. Rxd5 Qxd5 40. Rd2 Qf5 41. Qf2 Qb1+ 42. Kh2 Qf5 43. Kh1 Qb1+ 44. Kh2 Bd6+ 45. Rxd6 Rxb2 46. Qh4 h5 47. Qf6 Qf1 48. Qxf7+ 1-0

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "9"]
[White "Sultanbek, Zeinep"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2022"]
[BlackElo "2055"]
[PlyCount "105"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. b3 d6 3. Bb2 Nf6 4. Nc3 e6 5. Nf3 Be7 6. Bb5+ Nbd7 7. d4 cxd4 8. Qxd4 a6 9. Bxd7+ Bxd7 10. 0-0-0 Qc7 11. Rhe1 Rc8 12. e5 dxe5 13. Nxe5 Bc6 14. Nxc6 Qxc6 15. f3 b5 16. Rd2 0-0 17. Red1 Rfd8 18. Qe5 Rxd2 19. Rxd2 h6 20. Ne4 a5 21. Qg3 Kf8 22. Nxf6 Bxf6 23. Bxf6 gxf6 24. Qd6+ Kg7 25. Qxc6 Rxc6 26. c4 bxc4 27. Rc2 c3 28. Kd1 f5 29. Ke2 a4 30. b4 a3 31. Kd3 Rb6 32. Kxc3 Rd6 33. Kb3 Rd3+ 34. Ka4 Kf6 35. b5 e5 36. b6 e4 37. fxe4 fxe4 38. b7 Rd4+ 39. Ka5 Rd5+ 40. Ka6 Rd6+ 41. Ka5 Rd5+ 42. Ka6 Rd6+ 43. Ka7 Rd7 44. Kb6 Rd1 45. Rc5 Rd8 46. Rc8 Rd6+ 47. Kc5 Rd1 48. b8Q Rc1+ 49. Kd4 Kf5 50. Ke3 Re1+ 51. Kd2 Rf1 52. Qb5+ Kg4 53. Qxf1 1-0

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "2"]
[White "Tomaszewski, Kacper"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B55"]
[WhiteElo "2317"]
[BlackElo "2055"]
[PlyCount "89"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Qc7 8. Na3 a6 9. Be2 Be7 10. 0-0 0-0 11. Be3 Nbd7 12. Rc1 Rac8 13. Qe1 Nc5 14. Nxc5 dxc5 15. Nb1 Rfd8 16. Nc3 Qb8 17. Nd5 Bxd5 18. cxd5 b5 19. Qa5 Qb7 20. Rc2 c4 21. Rfc1 Nd7 22. a4 Nc5 23. axb5 axb5 24. Qe1 Nb3 25. Rd1 Bc5 26. Qf2 Bxe3 27. Qxe3 Nd4 28. Rxd4 exd4 29. Qxd4 Qc7 30. b3 Qc5 31. Qxc5 Rxc5 32. bxc4 Rdc8 33. Kf2 bxc4 34. Ke3 c3 35. Kd4 f6 36. f4 Kh8 37. e5 fxe5+ 38. fxe5 Kg8 39. d6 Ra5 40. Bc4+ Kf8 41. Rxc3 Ke8 42. Bf7+ Kd8 43. Rxc8+ Kxc8 44. e6 Rf5 45. e7 1-0

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "10"]
[White "Zaczek, Jonathon"]
[Black "Burke, Paul1111"]
[Result "1-0"]
[ECO "C63"]
[WhiteElo "2055"]
[PlyCount "75"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 Nf6 5. Nc3 Be7 6. 0-0 0-0 7. Re1 d6 8. Bxc6 bxc6 9. d4 fxe4 10. Nxe4 d5 11. Nxf6+ Bxf6 12. Nxe5 Bxe5 13. Rxe5 Qf6 14. Qe2 Bf5 15. c3 Qg6 16. Qe3 Rae8 17. Bd2 Rxe5 18. dxe5 Re8 19. Re1 a6 20. c4 dxc4 21. Bc3 Re6 22. Qd4 h6 23. Re3 Bd3 24. Rg3 Qe4 25. Qxe4 Bxe4 26. Kf1 Bd3+ 27. Ke1 Kf7 28. Re3 g5 29. g3 Kg6 30. Rf3 Be4 31. Rf8 c5 32. Ke2 Bd3+ 33. Ke3 h5 34. f4 gxf4+ 35. gxf4 Rc6 36. Rg8+ Kh6 37. h4 Bh7 38. Rg5 1-0

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "5"]
[White "Zaczek, Jonathon"]
[Black "Gallana, Marco"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2055"]
[BlackElo "2289"]
[PlyCount "80"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. Nd2 a6 7. Nc3 Nf6 8. Nc4 b5 9. Ne3 b4 10. Ncd5 Nxe4 11. Qf3 Ng5 12. Qd1 Ne6 13. a3 bxa3 14. Rxa3 g6 15. c3 Bg7 16. Bc4 0-0 17. 0-0 a5 18. b4 Bb7 19. b5 Nb8 20. Qe2 Nd7 21. Bd2 Kh8 22. Rfa1 Qh4 23. Rxa5 Ndc5 24. g3 Qh3 25. Qf1 Qxf1+ 26. Bxf1 Ne4 27. Be1 f5 28. Bg2 N6c5 29. Rxa8 Bxa8 30. Nb6 Bb7 31. Nec4 f4 32. Ra7 f3 33. Bf1 d5 34. Ne3 Nf6 35. c4 d4 36. Ned5 e4 37. Bb4 Bxd5 38. Nxd5 Nxd5 39. cxd5 e3 40. Bxc5 Rc8 0-1

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "3"]
[White "Zaczek, Jonathon"]
[Black "Melikhov, Evgeny V"]
[Result "0-1"]
[ECO "B86"]
[WhiteElo "2055"]
[BlackElo "2208"]
[PlyCount "96"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. g4 Nc5 9. f3 Be7 10. g5 Nfd7 11. Rg1 0-0 12. Be3 Qc7 13. Qe2 b5 14. 0-0-0 b4 15. Na4 Nxb3+ 16. axb3 Nc5 17. Kb1 Bd7 18. Qc4 Rfc8 19. h4 Nxa4 20. Qxc7 Rxc7 21. bxa4 Bxa4 22. b3 Bd7 23. f4 a5 24. f5 a4 25. f6 Bf8 26. bxa4 Rxa4 27. h5 Rca7 28. Nb3 R7a6 29. Bd4 Bc6 30. Rde1 Bb5 31. g6 fxg6 32. hxg6 h6 33. f7+ Kh8 34. Rh1 e5 35. Bb2 Bc4 36. Re3 Be6 37. Nd2 Ra7 38. Nf3 Bxf7 39. gxf7 Rxf7 40. Nh4 Kh7 41. Nf5 Rf6 42. Rg3 Rg6 43. Rxg6 Kxg6 44. Rg1+ Kf7 45. Kc1 g5 46. Ne3 Kg6 47. Rf1 Ra8 48. Nd5 h5 0-1

[Event "Titled Tuesday intern op 05th Sep Late"]
[Site "Chess.com INT"]
[Date "2023.09.05"]
[Round "7"]
[White "Zaczek, Jonathon"]
[Black "Nery Junior, Jose Antonio"]
[Result "0-1"]
[ECO "B89"]
[WhiteElo "2055"]
[BlackElo "2082"]
[PlyCount "60"]
[EventDate "2023.09.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nc6 8. Be3 Qc7 9. Qe2 b5 10. g4 h6 11. f4 Na5 12. g5 Nxb3 13. axb3 hxg5 14. fxg5 Nd7 15. 0-0-0 Ne5 16. h4 Bb7 17. h5 Rc8 18. g6 Be7 19. gxf7+ Kxf7 20. Rdf1+ Bf6 21. Bg5 b4 22. Nd1 Qc5 23. Bxf6 gxf6 24. Qe3 Ng4 25. Qd2 Bxe4 26. Rhg1 Rcg8 27. Kb1 Rxh5 28. Ne2 Rd5 29. Qc1 f5 30. Nf4 Rd4 0-1

[Event "Titled Tuesday intern op 22nd Aug Late"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "5"]
[White "Diano, Eden"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "D80"]
[WhiteElo "2100"]
[BlackElo "2054"]
[PlyCount "67"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Nxe4 dxe4 6. Qd2 Bg7 7. e3 0-0 8. Ne2 Nd7 9. Nc3 h6 10. Bh4 g5 11. Bg3 f5 12. h4 e5 13. hxg5 hxg5 14. dxe5 Nxe5 15. 0-0-0 Qxd2+ 16. Rxd2 c6 17. Be2 Be6 18. Bxe5 Bxe5 19. Na4 b6 20. f3 f4 21. Rh6 Rf6 22. Rxf6 Bxf6 23. Rd6 Kf7 24. exf4 gxf4 25. fxe4 c5 26. Nc3 Bd4 27. Nd5 Rh8 28. Bf3 Rc8 29. Rxe6 Kxe6 30. Bg4+ Ke5 31. Bxc8 Kxe4 32. Bb7 Kd3 33. b3 Ke2 34. Nxf4+ 1-0

[Event "Titled Tuesday intern op 22nd Aug Late"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "3"]
[White "Radovic, Luka"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2348"]
[BlackElo "2054"]
[PlyCount "67"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. 0-0 c5 7. Nc3 Nc7 8. e3 Nc6 9. d4 cxd4 10. exd4 e6 11. Bg5 Bf6 12. Bxf6 Qxf6 13. Ne4 Qe7 14. Qd2 0-0 15. Qh6 Nd5 16. Nc3 Qf6 17. Nxd5 exd5 18. Rfe1 Be6 19. Ng5 Qg7 20. Qxg7+ Kxg7 21. Rxe6 h6 22. Rxc6 bxc6 23. Nf3 Rab8 24. b3 Rfc8 25. Rc1 c5 26. dxc5 Rb5 27. c6 Rb6 28. Nd4 Rb4 29. Rd1 a5 30. Bxd5 Rd8 31. Bc4 Rb6 32. Ne6+ fxe6 33. Rxd8 Rxc6 34. f4 1-0

[Event "Titled Tuesday intern op 22nd Aug Late"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "2"]
[White "Zaczek, Jonathon"]
[Black "Avila Rodriguez, Joshua Ad"]
[Result "1-0"]
[ECO "C72"]
[WhiteElo "2054"]
[BlackElo "2239"]
[PlyCount "113"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. c3 g6 7. Re1 Bg7 8. h3 Nf6 9. d4 0-0 10. a3 Re8 11. Nbd2 h6 12. Bc2 Nh7 13. Nf1 Qe7 14. d5 Nb8 15. c4 f5 16. b4 Rf8 17. Bb2 f4 18. Rc1 g5 19. c5 h5 20. N3d2 g4 21. hxg4 hxg4 22. Nc4 Qh4 23. Qd3 Rf6 24. g3 Qh5 25. gxf4 Rh6 26. Ng3 Qh2+ 27. Kf1 exf4 28. Bxg7 Kxg7 29. Qc3+ Kg8 30. e5 fxg3 31. fxg3 Qh1+ 32. Ke2 Rh2+ 33. Kd1 Qxd5+ 34. Bd3 Bf5 35. Re3 Nc6 36. exd6 Bxd3 37. Rxd3 Qh1+ 38. Qe1 Qxe1+ 39. Kxe1 Rh1+ 40. Kd2 Rxc1 41. Kxc1 cxd6 42. Nxd6 Ne5 43. Rd5 Nf3 44. Re5 Rf8 45. Rd5 Nh2 46. Nxb7 Rf7 47. c6 Kg7 48. Rd7 Rxd7 49. cxd7 Nf6 50. d8Q Ne4 51. Qc7+ Kg6 52. Qb6+ Kf5 53. Qxa6 Nd6 54. Qe2 Ne4 55. Qxh2 Ke5 56. Qh4 Kd4 57. Qxg4 1-0

[Event "Titled Tuesday intern op 22nd Aug Late"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "4"]
[White "Zaczek, Jonathon"]
[Black "Carroll, Thomas"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2054"]
[BlackElo "2048"]
[PlyCount "73"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. 0-0 Ngf6 8. Ned2 Be7 9. Re1 0-0 10. Qe2 Re8 11. c4 Bxf3 12. Nxf3 c5 13. b3 cxd4 14. Bb2 Nc5 15. Rad1 Nxd3 16. Rxd3 Qa5 17. Bxd4 h6 18. Ne5 Rad8 19. Red1 a6 20. Rg3 Bc5 21. Bxc5 Qxc5 22. Rgd3 Rxd3 23. Nxd3 Qf5 24. Ne5 h5 25. h3 g5 26. Nd7 h4 27. Nxf6+ Qxf6 28. Rd7 Qc3 29. Rxb7 Rd8 30. Kh2 Rd2 31. Qh5 Qe5+ 32. Kg1 Qe1+ 33. Kh2 Qe5+ 34. Kg1 Qf5 35. Rb8+ Kg7 36. Qh8+ Kg6 37. Rg8# 1-0

[Event "Titled Tuesday intern op 22nd Aug Late"]
[Site "Chess.com INT"]
[Date "2023.08.22"]
[Round "1"]
[White "Zaczek, Jonathon"]
[Black "Sivakumar, Shaaketh"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "2054"]
[BlackElo "2355"]
[PlyCount "94"]
[EventDate "2023.08.22"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. dxc5 Bxc5 6. Bd3 Nf6 7. e5 Nd7 8. Qe2 Qc7 9. Bb5 0-0 10. Bxc6 bxc6 11. 0-0 a5 12. a4 Ba6 13. c4 Nb6 14. b3 dxc4 15. Nxc4 Rfd8 16. Bb2 Nxc4 17. bxc4 Rab8 18. Rfd1 Rxd1+ 19. Rxd1 h6 20. Bc3 Bb4 21. Ba1 c5 22. Nd2 Bb7 23. Ne4 Qc6 24. f3 Qxa4 25. Nd6 Bc6 26. Rb1 Qa3 27. f4 a4 28. f5 exf5 29. Nxf5 Bd7 30. e6 Bxe6 31. Nxg7 Re8 32. Nxe8 Bf5 33. Qe5 Kf8 34. Nd6 Be6 35. Nf5 Bxf5 36. Qxf5 Qe3+ 37. Kh1 a3 38. Rf1 Qe7 39. Qh7 Qe6 40. Qh8+ Ke7 41. Qb8 Qxc4 42. Qc7+ Ke8 43. Qc8+ Ke7 44. Bf6+ Kd6 45. Qd8+ Kc6 46. Rd1 Qe6 47. Qe7 Qg4 0-1

[Event "Manitoba-ch"]
[Site "Winnipeg"]
[Date "2015.04.02"]
[Round "2"]
[White "Li, Kevin"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2280"]
[BlackElo "2291"]
[PlyCount "107"]
[EventDate "2015.03.01"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "CAN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 c5 6. 0-0 Nc6 7. c4 d6 8. Nc3 Bd7 9. d4 cxd4 10. Nxd4 Rb8 11. Rc1 a6 12. Nxc6 bxc6 13. c5 d5 14. Nxd5 Nxd5 15. Bxg7 Ne3 16. fxe3 Kxg7 17. Qd4+ e5 18. Qxe5+ f6 19. Qd6 Qe8 20. Kf2 Rc8 21. Rfd1 Be6 22. Rd4 Rf7 23. Re4 Re7 24. Rd1 Qf7 25. Rd3 Rcc7 26. Red4 Rc8 27. Bxc6 Rec7 28. Bd7 Bxd7 29. Qxd7 Rxc5 30. Qxf7+ Kxf7 31. Rd7+ Ke8 32. e4 Rc2 33. Rxh7 R8c6 34. a4 Rb2 35. Rb7 Rcc2 36. Re3 Rc5 37. e5 fxe5 38. h4 g5 39. hxg5 Kf8 40. g6 Kg8 41. Rd3 Rc8 42. Rd6 a5 43. g7 Kh7 44. Rd5 Re8 45. Rxa5 Rb1 46. Raa7 Rh1 47. Rf7 Kg8 48. a5 e4 49. Rfe7 e3+ 50. Kxe3 Rb8 51. Rab7 Ra8 52. a6 Rc1 53. a7 Rcc8 54. b4 1-0

[Event "Manitoba-ch"]
[Site "Winnipeg"]
[Date "2015.04.01"]
[Round "2"]
[White "Zaczek, Jonathon"]
[Black "Li, Kevin"]
[Result "0-1"]
[ECO "B57"]
[WhiteElo "2291"]
[BlackElo "2280"]
[PlyCount "68"]
[EventDate "2015.03.01"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "CAN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nde2 e6 8. 0-0 Be7 9. Bb3 a6 10. Qd3 Bd7 11. Qg3 h5 12. Be3 Qc7 13. f3 Na5 14. Qf2 Nc4 15. Bxc4 Qxc4 16. a4 Rc8 17. a5 e5 18. Rfd1 Bc6 19. Rd2 Qe6 20. Rad1 Rd8 21. Bb6 Rd7 22. Ng3 g6 23. Nd5 h4 24. Nxf6+ Bxf6 25. Nf1 Bg5 26. Ne3 f5 27. exf5 gxf5 28. c4 h3 29. Re2 hxg2 30. Nd5 Qh6 31. Qxg2 Rg7 32. Kf1 Bf4 33. Qf2 Bxh2 34. Red2 Qh3+ 0-1

[Event "Manitoba-ch"]
[Site "Winnipeg"]
[Date "2015.03.29"]
[Round "1"]
[White "Boron, Anthony"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1948"]
[BlackElo "2065"]
[PlyCount "57"]
[EventDate "2015.03.01"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "CAN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Qa5+ 5. c3 Nf6 6. dxc5 Qxc5 7. e4 Nc6 8. Na3 d6 9. Qd2 Bd7 10. Ne2 g6 11. Ng3 Bg7 12. Nc4 Ne5 13. Nxe5 dxe5 14. Be3 Qc7 15. 0-0-0 0-0-0 16. Qf2 b6 17. Ba6+ Kb8 18. Kb1 Be6 19. Qe2 Nd7 20. Rc1 Nc5 21. Bb5 Bc8 22. b4 Ne6 23. Rhe1 Rd6 24. Nh1 Rhd8 25. g3 Bd7 26. Ba6 Bc8 27. Bb5 Bd7 28. Ba6 Bc8 29. Bb5 1/2-1/2

[Event "Winnipeg February TNT"]
[Site "Winnipeg"]
[Date "2015.02.17"]
[Round "3.4"]
[White "Bince, Rolando"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2059"]
[BlackElo "2291"]
[PlyCount "116"]
[EventDate "2015.02.03"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "CAN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Bc4 0-0 9. 0-0 Nc6 10. Bd5 Bd7 11. Ba3 cxd4 12. cxd4 Rc8 13. Rb1 e6 14. Bc4 Re8 15. Bb5 a6 16. Ba4 Nxd4 17. Bxd7 Qxd7 18. e5 Nxf3+ 19. Qxf3 Bxe5 20. Rxb7 Rc7 21. Rfb1 Rec8 22. g3 Qc6 23. Qxc6 Rxc6 24. R7b6 Bd4 25. Rb8 Kg7 26. Bb2 Bxb2 27. Rxc8 Rxc8 28. Rxb2 Rc1+ 29. Kg2 Ra1 30. Kf3 Kf6 31. h3 Ke5 32. Ke3 f5 33. h4 h6 34. Rc2 Kd5 35. Kd3 e5 36. Kc3 g5 37. hxg5 hxg5 38. Kd3 g4 39. Rd2 Re1 40. Rc2 Rd1+ 41. Ke2 Rd4 42. Rc3 f4 43. gxf4 exf4 44. Ra3 f3+ 45. Ke3 Re4+ 46. Kd3 Re2 47. Ra5+ Ke6 48. Rg5 Rxf2 49. Rxg4 Rxa2 50. Ke3 f2 51. Re4+ Kd5 52. Rf4 a5 53. Rd4+ Ke5 54. Re4+ Kf5 55. Rf4+ Kg5 56. Rxf2 Rxf2 57. Kxf2 a4 58. Ke3 a3 0-1

[Event "Winnipeg February TNT"]
[Site "Winnipeg"]
[Date "2015.02.10"]
[Round "2.4"]
[White "Zaczek, Jonathon"]
[Black "Atem, James"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "2291"]
[BlackElo "1902"]
[PlyCount "91"]
[EventDate "2015.02.03"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "CAN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 e6 4. Nc3 cxd4 5. Nxd4 Bb4 6. Ndb5 Nge7 7. Nd6+ Bxd6 8. Qxd6 a6 9. a4 Qa5 10. Be3 0-0 11. Bd3 Qe5 12. Bc5 Re8 13. 0-0 Ng6 14. f4 Qxd6 15. Bxd6 f6 16. a5 Nge7 17. Na4 Ng6 18. Nb6 Ra7 19. g3 Rd8 20. b4 Nh8 21. c4 Nf7 22. Bc7 Re8 23. b5 axb5 24. cxb5 Nb4 25. Bb1 Na6 26. bxa6 bxa6 27. Rc1 Rb7 28. e5 fxe5 29. fxe5 Ng5 30. Bd6 Nf3+ 31. Kg2 Nd2 32. Rc3 g6 33. Bd3 Rxb6 34. axb6 Bb7+ 35. Kf2 Ra8 36. Ke3 Nf3 37. Rc7 Bd5 38. b7 Bxb7 39. Rxb7 Nxh2 40. Be2 h5 41. Rxa6 Rc8 42. Rxd7 Rc3+ 43. Kd4 Rc8 44. Raa7 Ng4 45. Rg7+ Kh8 46. Rh7+ 1-0

[Event "Winnipeg February TNT"]
[Site "Winnipeg"]
[Date "2015.02.03"]
[Round "1.4"]
[White "Remillard, John"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "A15"]
[WhiteElo "1626"]
[BlackElo "2291"]
[PlyCount "42"]
[EventDate "2015.02.03"]
[EventType "swiss"]
[EventRounds "4"]
[EventCountry "CAN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. 0-0 c5 7. Nc3 Nc7 8. Qc2 Nc6 9. Na4 Nd4 10. Nxd4 cxd4 11. Nc5 Nd5 12. Qa4+ Kf8 13. Qb3 e6 14. Nxb7 Qc7 15. Qa3+ Kg8 16. Bxd5 exd5 17. Na5 Bf8 18. b4 Qe7 19. Rb1 Qxe2 20. Bb2 Bh3 21. Bxd4 Qe4 0-1

[Event "Manitoba-ch"]
[Site "Winnipeg"]
[Date "2015.??.??"]
[Round "1"]
[White "Zaczek, Jonathon"]
[Black "Boron, Anthony"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2291"]
[BlackElo "2021"]
[PlyCount "103"]
[EventDate "2015.03.01"]
[EventType "k.o."]
[EventRounds "3"]
[EventCountry "CAN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 dxc4 7. d5 Ne5 8. Qd4 h6 9. Bf4 Ng6 10. Bg3 e6 11. d6 Nh5 12. 0-0-0 Nxg3 13. hxg3 Bd7 14. Bxc4 b5 15. Nxb5 Rc8 16. Nc7+ Rxc7 17. dxc7 Qxc7 18. Kb1 Bc5 19. Qd2 Bc6 20. f4 0-0 21. Nf3 a5 22. Qe2 Rb8 23. Nd4 Ba4 24. b3 Be8 25. Nb5 Qe7 26. a4 Qf6 27. Ka2 Ne7 28. Qb2 Qg6 29. Qc3 Nc6 30. Bd3 Nb4+ 31. Qxb4 Bxb4 32. Bxg6 fxg6 33. Nd4 Kf7 34. Rc1 Rb6 35. Rc7+ Kf6 36. Rhc1 Rd6 37. Nf3 g5 38. Ne5 gxf4 39. gxf4 g5 40. g3 gxf4 41. gxf4 Kf5 42. Nc4 Rd4 43. Rf1 Re4 44. Nxa5 Re2+ 45. Ka1 Kg4 46. Rg7+ Kf5 47. Rc7 Kg4 48. Nc4 Bc3+ 49. Kb1 Bg6+ 50. Kc1 Ra2 51. Ne3+ Kg3 52. Rxc3 1-0

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.06.18"]
[Round "11"]
[White "Szewczyk, Mariusz"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2024"]
[BlackElo "2073"]
[PlyCount "110"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. e5 e6 4. exd6 Qxd6 5. Nc3 Nf6 6. d4 Nbd7 7. Nb5 Qb6 8. a4 a6 9. a5 Qd8 10. Nc3 Be7 11. Bc4 0-0 12. 0-0 b5 13. axb6 Nxb6 14. Bd3 cxd4 15. Nxd4 Bb7 16. Be3 Nbd5 17. Nxd5 Nxd5 18. Qe2 Nxe3 19. fxe3 Qb6 20. Qh5 g6 21. Qa5 Bc5 22. Qxb6 Bxb6 23. c3 e5 24. Nc2 Rfd8 25. Rfd1 Rd6 26. Bc4 Rad8 27. Rxd6 Rxd6 28. Rf1 Rd7 29. Rf6 Ba7 30. Kf1 Kg7 31. Rf2 Be4 32. Bxa6 Bxc2 33. Rxc2 Bxe3 34. Ke2 Ba7 35. b4 Kf6 36. c4 e4 37. c5 Rc7 38. Rd2 Bxc5 39. bxc5 Rxc5 40. Rb2 Ke6 41. Rb6+ Ke7 42. Ke3 Rc2 43. Bf1 f5 44. Rb7+ Kf6 45. Rxh7 g5 46. Rd7 Ke5 47. Re7+ Kd5 48. Be2 f4+ 49. Kf2 g4 50. Kf1 Rc1+ 51. Kf2 Rc2 52. Ke1 f3 53. gxf3 gxf3 54. Bxf3 exf3 55. Re3 Rxh2 1/2-1/2

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.06.13"]
[Round "10"]
[White "Zaczek, Jonathon"]
[Black "Sanz Losada, Victoriano"]
[Result "1-0"]
[ECO "B89"]
[WhiteElo "2073"]
[BlackElo "2099"]
[PlyCount "81"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 Be7 8. Qe2 0-0 9. 0-0-0 Qa5 10. g4 Nxd4 11. Bxd4 e5 12. Be3 Bxg4 13. f3 Be6 14. Bb3 Rfc8 15. Kb1 Nd7 16. Rhg1 Nb6 17. Bxb6 Qxb6 18. Nd5 Bxd5 19. Bxd5 Rc5 20. Qg2 Bf6 21. Rd3 Rac8 22. Bb3 Qc7 23. Qd2 Be7 24. c3 Kh8 25. Bxf7 b5 26. Bd5 Qd7 27. Qg2 Bf8 28. f4 exf4 29. Rh3 Rxd5 30. exd5 Qf5+ 31. Ka1 Rc5 32. Rd1 Be7 33. Rhd3 Bf6 34. Qf3 g5 35. Qh5 Kg7 36. h4 h6 37. hxg5 hxg5 38. Qe8 Qc8 39. Qh5 Qf5 40. Rh3 Rxd5 41. Qh8+ 1-0

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.06.06"]
[Round "9"]
[White "Moskwinski, Tadeusz"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "2081"]
[BlackElo "2073"]
[PlyCount "63"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 c5 6. Nc3 Nc6 7. d3 d6 8. Rb1 Bd7 9. a3 a5 10. Bd2 Ne8 11. Ne1 Rb8 12. Nc2 Nc7 13. b4 cxb4 14. axb4 axb4 15. Nxb4 Nxb4 16. Rxb4 b5 17. Nxb5 Nxb5 18. cxb5 Rxb5 19. Rxb5 Bxb5 20. Qb3 Bd7 21. Rc1 Qb8 22. Qb7 Qxb7 23. Bxb7 Bf6 24. Rc7 Be6 25. Bh6 Rb8 26. f3 Re8 27. Kg2 Bg7 28. Bg5 Bf8 29. e4 h6 30. Be3 Rd8 31. Bd5 Rc8 32. Rxc8 1/2-1/2

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.05.28"]
[Round "8"]
[White "Zaczek, Jonathon"]
[Black "Choroszej, Aleksander"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2073"]
[BlackElo "2113"]
[PlyCount "83"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Be3 d6 4. Qd2 Nd7 5. c4 Ngf6 6. f3 0-0 7. Nc3 c5 8. Nge2 cxd4 9. Nxd4 Ne5 10. Be2 Bd7 11. 0-0 Rc8 12. b3 a6 13. Rac1 Nc6 14. Rfd1 Nxd4 15. Bxd4 Bc6 16. b4 Ne8 17. Be3 Nc7 18. Qe1 Qe8 19. Nd5 Bxd5 20. exd5 e6 21. dxe6 Qxe6 22. Bd3 d5 23. Qf2 Rfe8 24. Bc5 Rcd8 25. Re1 Qd7 26. Rxe8+ Rxe8 27. Bb6 Ne6 28. cxd5 Qxd5 29. Be4 Qg5 30. Rd1 Qb5 31. a3 Qa4 32. Qd2 Qxa3 33. Qd7 Rf8 34. Qxb7 Qxb4 35. Qxa6 Nc5 36. Bxc5 Qxc5+ 37. Kh1 h5 38. g3 Qg5 39. f4 Qf6 40. Qxf6 Bxf6 41. Rd7 Rd8 42. Rxd8+ 1/2-1/2

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.05.23"]
[Round "7"]
[White "Zaczek, Jonathon"]
[Black "Sielicki, Tomasz"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2073"]
[BlackElo "2010"]
[PlyCount "65"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. 0-0 Nd4 6. Nxd4 Bxd4 7. c3 Bb6 8. Nd2 c6 9. Ba4 0-0 10. Nf3 d6 11. h3 h6 12. Re1 Re8 13. Bc2 Qe7 14. d4 Bd7 15. Qe2 Nh5 16. Nxe5 dxe5 17. Qxh5 exd4 18. e5 dxc3 19. Bxh6 g6 20. Bxg6 fxg6 21. Qxg6+ Kh8 22. Bg5 Bxf2+ 23. Kxf2 Qc5+ 24. Kg3 Re6 25. Bf6+ Rxf6 26. Qxf6+ Kg8 27. Qg6+ Kf8 28. Rf1+ Ke7 29. Qg5+ Ke8 30. Qg8+ Ke7 31. Rf7+ Ke6 32. Qg6+ Kd5 33. Qd3+ 1-0

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.05.16"]
[Round "6"]
[White "Maj, Pawel"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1968"]
[BlackElo "2073"]
[PlyCount "67"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nf6 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. Nf3 Nc6 7. 0-0 e6 8. d3 Be7 9. Ne2 0-0 10. Ng3 Rac8 11. f5 e5 12. c4 Nd4 13. Bg5 b5 14. Bxf6 Bxf6 15. Nh5 bxc4 16. dxc4 Qe7 17. g4 Rb8 18. Qd2 Rb4 19. Nxf6+ Qxf6 20. g5 Qd8 21. b3 Qb6 22. f6 g6 23. Nxd4 exd4 24. Qf4 Re8 25. Rae1 Re5 26. h4 h5 27. gxh6 Kh7 28. Qg4 Qd8 29. Rf4 Rb8 30. Ref1 Qc8 31. Qf3 Qe6 32. Kf2 Re8 33. Re1 Qc8 34. Re2 1/2-1/2

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.05.09"]
[Round "5"]
[White "Zaczek, Jonathon"]
[Black "Nowak, Lukasz"]
[Result "0-1"]
[ECO "B86"]
[WhiteElo "2073"]
[BlackElo "2083"]
[PlyCount "58"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. f5 Be7 10. Qf3 0-0 11. Be3 e5 12. Nde2 Nxb3 13. axb3 b5 14. 0-0-0 Bb7 15. Ng3 b4 16. Nd5 Bxd5 17. exd5 a5 18. Bg5 a4 19. Bxf6 Bxf6 20. Ne4 Bg5+ 21. Kb1 axb3 22. cxb3 Qa5 23. Nxd6 Rfc8 24. Nxc8 Qa2+ 25. Kc2 Rxc8+ 26. Kd3 e4+ 27. Qxe4 Qxb2 28. Qxb4 Qc2+ 29. Kd4 Qf2+ 0-1

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.04.29"]
[Round "4"]
[White "Sujkowski, Pawel"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "1951"]
[BlackElo "2073"]
[PlyCount "124"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Be3 0-0 9. Qd2 Qa5 10. Rc1 Nc6 11. d5 Rd8 12. Be2 e6 13. Bg5 Rd7 14. 0-0 f6 15. Bh6 Ne7 16. Bxg7 Kxg7 17. d6 Nc6 18. Rfd1 e5 19. Bc4 Nd8 20. Qd5 Nf7 21. g4 Qd8 22. Qxc5 Rxd6 23. Rxd6 Qxd6 24. Qb5 Qc7 25. Bxf7 Kxf7 26. h3 Be6 27. c4 Rc8 28. c5 Qc6 29. Qxc6 Rxc6 30. Rb1 Rc7 31. a3 Bc4 32. Rc1 Ba6 33. Nd2 Ke7 34. Rc3 b6 35. Nb3 Bc8 36. Rc1 Be6 37. cxb6 Rxc1+ 38. Nxc1 axb6 39. Kf1 Bc4+ 40. Ke1 Kd6 41. Kd2 Kc5 42. Ke3 g5 43. Nd3+ Bxd3 44. Kxd3 Kb5 45. Kc3 Ka4 46. Kb2 b5 47. f3 b4 48. axb4 Kxb4 49. Kc2 Kc4 50. Kd2 Kd4 51. Ke2 Kc3 52. Ke3 Kc2 53. Ke2 h6 54. Ke3 Kd1 55. Kf2 Kd2 56. Kg3 Ke1 57. Kg2 Ke2 58. Kg3 Kf1 59. h4 Kg1 60. h5 Kf1 61. f4 Ke2 62. fxg5 fxg5 0-1

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.04.25"]
[Round "3"]
[White "Zaczek, Jonathon"]
[Black "Ponikowski, Przemyslaw"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2073"]
[BlackElo "1968"]
[PlyCount "138"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 g6 5. Be2 Bg7 6. 0-0 Nf6 7. Nc3 0-0 8. f4 Re8 9. Bf3 Nbd7 10. Re1 Rb8 11. g4 Nc5 12. g5 Nfd7 13. Bg2 f5 14. Ndb5 a6 15. Na7 fxe4 16. Nxc8 Qxc8 17. Nxe4 Nxe4 18. Bxe4 Nc5 19. Bd5+ Kh8 20. Be3 Qf5 21. Qd2 Ne4 22. Qd3 Qg4+ 23. Kh1 Qf3+ 24. Kg1 c6 25. Bxe4 Rxe4 26. Qxd6 Be5 27. Qd2 Rf8 28. Qg2 Qxg2+ 29. Kxg2 Bxb2 30. Rad1 Kg8 31. Kf3 Rc4 32. Re2 Be5 33. Rd7 Bxf4 34. Bxf4 Rcxf4+ 35. Kg3 Rf3+ 36. Kg2 R3f7 37. Ree7 Rxe7 38. Rxe7 Rf7 39. Re8+ Kg7 40. Rd8 a5 41. Kg3 Re7 42. h4 a4 43. Kf4 b5 44. Rd6 Rf7+ 45. Ke5 c5 46. Rc6 c4 47. Rb6 Rf2 48. Rb7+ Kf8 49. Ke6 Re2+ 50. Kf6 Rf2+ 51. Ke6 Re2+ 52. Kf6 Ke8 53. Rxb5 Rxc2 54. Rb4 a3 55. Ra4 Rxa2 56. Rxc4 Rf2+ 57. Ke6 Kd8 58. Kd6 a2 59. Ra4 Kc8 60. Kc6 Rc2+ 61. Kd6 Kb7 62. Ke6 Rf2 63. Ke7 Kc6 64. Ke6 Kb5 65. Ra7 Kc4 66. Ke5 Kb3 67. Ke4 Rf1 68. Rb7+ Kc4 69. Rc7+ Kb5 0-1

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.04.17"]
[Round "2"]
[White "Delega, Tomasz"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2100"]
[BlackElo "2073"]
[PlyCount "123"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Nf6 5. d5 d6 6. e4 g6 7. c4 Bg7 8. Nc3 0-0 9. Qd2 a6 10. Bh6 e6 11. h4 exd5 12. cxd5 Re8 13. Bxg7 Kxg7 14. h5 Nbd7 15. hxg6 fxg6 16. Qh6+ Kg8 17. Nh3 Qe7 18. Nf4 Nf8 19. a4 b6 20. Bc4 Bd7 21. g4 b5 22. Be2 b4 23. Nd1 Qe5 24. Nd3 Qd4 25. Qe3 Qxe3 26. Nxe3 Rad8 27. Nf4 Bc8 28. g5 N6d7 29. a5 Ne5 30. Nc4 Nxc4 31. Bxc4 Rd7 32. Ke2 Rf7 33. Ke3 Rfe7 34. Rh2 Rf7 35. Rah1 Rfe7 36. b3 Rf7 37. Nd3 Rfe7 38. Nf4 Rf7 39. Bd3 Rfe7 40. Ne2 Bd7 41. Nf4 Bc8 42. Rh4 Bb7 43. Bc4 Bc8 44. Nd3 Nd7 45. Rf4 Rf8 46. Rxf8+ Kxf8 47. f4 Kg7 48. Kf3 Rf7 49. Kg3 Re7 50. Re1 h6 51. gxh6+ Kxh6 52. e5 Kg7 53. Kf3 Bb7 54. Re2 Re8 55. Re4 Kf8 56. exd6 Nf6 57. Rxe8+ Kxe8 58. Nxc5 Bxd5+ 59. Bxd5 Nxd5 60. Ke4 Nc3+ 61. Ke5 Na2 62. Ke6 1-0

[Event "Warsaw YMCA Spring-A 138th"]
[Site "Warsaw"]
[Date "2014.04.11"]
[Round "1"]
[White "Zaczek, Jonathon"]
[Black "Kasperkiewicz, Pawel"]
[Result "1/2-1/2"]
[ECO "C81"]
[WhiteElo "2073"]
[BlackElo "2020"]
[PlyCount "92"]
[EventDate "2014.04.08"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Be7 10. Qe2 Nc5 11. Re1 0-0 12. c3 d4 13. Bd1 dxc3 14. bxc3 Qd3 15. Nb3 Qxe2 16. Rxe2 Rfd8 17. Bc2 Bd5 18. Nfd4 Nxb3 19. Nxb3 a5 20. Bf4 b4 21. cxb4 axb4 22. Rd2 Be6 23. Rdd1 Rxd1+ 24. Bxd1 Rd8 25. Rc1 Nd4 26. Be3 Nb5 27. Bf3 Nc3 28. Nd4 Bd5 29. Bxd5 Rxd5 30. Kf1 c5 31. Nc6 Bf8 32. a3 Rd1+ 33. Rxd1 Nxd1 34. axb4 Nxe3+ 35. fxe3 cxb4 36. Ke2 Bc5 37. Kd3 Kf8 38. Kc4 Bxe3 39. Kxb4 Ke8 40. Kc4 Kd7 41. Kd5 Bg1 42. h3 g6 43. Nb8+ Ke7 44. Nc6+ Kd7 45. Nb8+ Ke7 46. Nc6+ Kd7 1/2-1/2

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.03.09"]
[Round "9.11"]
[White "Szewczyk, Mariusz"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2021"]
[BlackElo "2062"]
[PlyCount "119"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. e5 e6 4. d4 cxd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Qf4 Qc7 8. exd6 Bxd6 9. Qg5 Bf8 10. 0-0 h6 11. Qg3 Qxg3 12. hxg3 Nf6 13. Nc3 Be7 14. Bf4 0-0 15. Rad1 a6 16. Ba4 Rac8 17. Bd6 Rfe8 18. Bxe7 Rxe7 19. Rd2 Be8 20. Bxc6 Bxc6 21. Ne5 Be8 22. Rfd1 Rec7 23. g4 Kf8 24. f4 Ke7 25. Kf1 b5 26. a3 a5 27. Rd4 Rxc3 28. bxc3 Rxc3 29. R1d2 Rxa3 30. c4 bxc4 31. Nxc4 Bb5 32. Ke1 Ra1+ 33. Rd1 Ra2 34. R1d2 Ra1+ 35. Rd1 Ra4 36. Ne3 Ra3 37. Kf2 Ra2+ 38. Kg3 Re2 39. Kf3 Rb2 40. R4d2 Rb3 41. Re1 a4 42. g5 hxg5 43. fxg5 Nd5 44. Kf2 Nxe3 45. Rxe3 Rb4 46. Rc3 Bc4 47. Ke3 e5 48. Kf3 Ke6 49. g4 Bd5+ 50. Kg3 f5 51. gxf5+ Kd6 52. Rcd3 Rb3 53. f6 gxf6 54. g6 Ke7 55. Rxb3 Bxb3 56. Rd3 f5 57. Kh4 Kf6 58. Kh5 f4 59. Rd6+ Kf5 60. g7 1/2-1/2

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.03.09"]
[Round "10.1"]
[White "Zaczek, Jonathon"]
[Black "Lewandrowski, Tomasz"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "2062"]
[BlackElo "1817"]
[PlyCount "65"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 Nf6 5. Nf3 c5 6. Be3 cxd4 7. Nxd4 0-0 8. Qd2 Nc6 9. 0-0-0 Bg4 10. Re1 Rc8 11. f5 Nxd4 12. Bxd4 e5 13. Bf2 gxf5 14. h3 Rxc3 15. Qxc3 Nxe4 16. Rxe4 fxe4 17. hxg4 Qg5+ 18. Qe3 Qxg4 19. Rh4 Qg6 20. Qxe4 f5 21. Qd5+ Kh8 22. Rc4 b5 23. Rc7 Bh6+ 24. Kb1 Qg5 25. Qd1 a6 26. Rd7 Qf4 27. Bb6 Rf6 28. Rd8+ Kg7 29. Bc7 Rf7 30. Bxd6 Bg5 31. Re8 Bf6 32. Qc1 Qd4 33. Bxe5 1-0

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.02.09"]
[Round "8.16"]
[White "Choroszej, Aleksander"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2130"]
[BlackElo "2062"]
[PlyCount "75"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 12. 0-0 Bg4 13. Bg5 h6 14. Be3 Nc6 15. Rxb7 Rab8 16. Rc7 Rfc8 17. Rxc8+ Rxc8 18. h3 Bd7 19. d5 Nb4 20. Bd4 Nc2 21. Bxg7 Kxg7 22. Qd2 Qa4 23. Rc1 Qb4 24. Rxc2 Qxd2 25. Rxd2 Rc1+ 26. Kh2 Ra1 27. Ne5 Be8 28. Nc6 e6 29. Nd4 Kf6 30. d6 e5 31. Nb3 Ra4 32. Nc5 Rd4 33. Rxd4 exd4 34. d7 Bxd7 35. Nxd7+ Ke6 36. Nc5+ Ke5 37. Kg3 a5 38. Bb5 1-0

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.02.09"]
[Round "7.20"]
[White "Zaczek, Jonathon"]
[Black "Sadowski, Miroslaw"]
[Result "1/2-1/2"]
[ECO "B72"]
[WhiteElo "2062"]
[BlackElo "2106"]
[PlyCount "71"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. Nc3 0-0 6. 0-0 Nc6 7. d5 Nb8 8. Nd4 c5 9. dxc6 Nxc6 10. Be3 Bd7 11. Qd2 Nxd4 12. Bxd4 Bc6 13. Bf3 Qa5 14. Rad1 Rfd8 15. a3 Rac8 16. Bxf6 exf6 17. Nd5 Qxd2 18. Rxd2 Kf8 19. c3 Bh6 20. Rd4 Bxd5 21. Rxd5 Rc5 22. Rd3 a5 23. a4 b6 24. Rfd1 Ke7 25. g3 Bg7 26. Rd5 Bh6 27. Kf1 Rc4 28. R5d4 Rxd4 29. Rxd4 Rc8 30. Rd1 Rc5 31. Be2 Re5 32. Bd3 Rh5 33. h4 Rc5 34. Ke2 d5 35. exd5 Rxd5 36. Bb5 1/2-1/2

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.02.02"]
[Round "5.1"]
[White "Llaneza Vega, Victor"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1955"]
[BlackElo "2062"]
[PlyCount "117"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 Ngf6 5. Re1 e6 6. c3 Be7 7. d4 0-0 8. Bg5 a6 9. Bd3 b5 10. Nbd2 Bb7 11. Nf1 Re8 12. Ng3 Qc7 13. Qe2 Bf8 14. Rad1 h6 15. Bf4 e5 16. dxe5 dxe5 17. Be3 c4 18. Bc2 Nc5 19. Bxc5 Bxc5 20. h3 Rad8 21. Rxd8 Rxd8 22. Rd1 Rxd1+ 23. Qxd1 Qd6 24. Qd2 Kh7 25. Kf1 g6 26. Ke2 Kg7 27. Qxd6 Bxd6 28. Nd2 Nd7 29. a4 Nc5 30. axb5 axb5 31. b4 cxb3 32. Bxb3 Nxb3 33. Nxb3 Kf6 34. Ke3 Ke6 35. Ne2 f5 36. f3 f4+ 37. Kd2 g5 38. Nec1 h5 39. Nd3 Ke7 40. Nbc5 Bc8 41. Nb3 Bb7 42. Na5 Ba8 43. Nb3 Bb7 44. Nbc5 Bxc5 45. Nxc5 Bc8 46. c4 Kd6 47. Nd3 bxc4 48. Nb2 Kc5 49. Kc3 Be6 50. Na4+ Kb5 51. Nb2 Bf7 52. Nd1 Bg8 53. Nb2 Be6 54. Nd1 g4 55. hxg4 hxg4 56. fxg4 Bxg4 57. Nb2 Be2 58. Kd2 Bf1 59. Kc3 0-1

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.01.19"]
[Round "3.16"]
[White "Litwiniec, Miroslawa"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1802"]
[BlackElo "2062"]
[PlyCount "56"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. f4 exf4 10. Bxf4 Nc6 11. Qe1 Be6 12. Rd1 Qc7 13. Qg3 Rad8 14. Rd2 b5 15. Bh6 Ne8 16. Nd4 Nxd4 17. Rxd4 d5 18. Nxd5 Bxd5 19. Bf4 Qb6 20. Be3 Be6 21. Rfd1 Rxd4 22. Bxd4 Bc5 23. Qc3 Bxd4+ 24. Rxd4 Nf6 25. Kf1 Rd8 26. Rxd8+ Qxd8 27. Qc6 Qc8 28. Qd6 Nxe4 0-1

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.01.19"]
[Round "4.11"]
[White "Zaczek, Jonathon"]
[Black "Harazinska, Ewa"]
[Result "1/2-1/2"]
[ECO "B87"]
[WhiteElo "2062"]
[BlackElo "2078"]
[PlyCount "143"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. 0-0 Be7 9. Qf3 Qc7 10. Qg3 Nc6 11. Nxc6 Qxc6 12. Re1 Bb7 13. Bg5 0-0 14. a3 Rfd8 15. Rad1 Rac8 16. Re3 Kh8 17. Qh4 Qe8 18. Rdd3 Ng8 19. Rh3 h6 20. Rdg3 Qf8 21. Bxe7 Nxe7 22. Rxg7 Qxg7 23. Qxe7 f6 24. Qxe6 Re8 25. Qxd6 Bxe4 26. Rg3 Red8 27. Qxd8+ Rxd8 28. Rxg7 Kxg7 29. Kf1 Bc6 30. Be6 Kg6 31. Bg4 Rd2 32. Be2 Rd4 33. g3 f5 34. Bd3 Be4 35. Bxe4 fxe4 36. Ke1 Kf5 37. Ne2 Rc4 38. c3 Kg4 39. Ng1 a5 40. h3+ Kf5 41. Ne2 b4 42. axb4 axb4 43. b3 Rc8 44. cxb4 Ke5 45. Nf4 Rc3 46. Ng2 Rxb3 47. Ne3 h5 48. h4 Kd4 49. Ke2 Rb2+ 50. Kf1 Kd3 51. Nd5 Kd4 52. Nf4 Rxb4 53. Nxh5 Rb1+ 54. Kg2 Rb2 55. Ng7 Kd3 56. Nf5 Ke2 57. Ne3 Ke1 58. Ng4 e3 59. Nxe3 Rxf2+ 60. Kh3 Rf3 61. Ng4 Rf5 62. Nh6 Rf6 63. Ng4 Rf5 64. Nh6 Rf6 65. Ng8 Rf8 66. Ne7 Kf2 67. h5 Rf3 68. Kh4 Rxg3 69. h6 Rg1 70. Kh5 Rh1+ 71. Kg6 Rxh6+ 72. Kxh6 1/2-1/2

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.01.12"]
[Round "2.6"]
[White "Myc, Marcin"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2307"]
[BlackElo "2062"]
[PlyCount "91"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nb6 7. Be3 0-0 8. Be2 Nc6 9. Nf3 Bg4 10. d5 Ne5 11. Bd4 Bxf3 12. Bxf3 Nec4 13. Bxg7 Kxg7 14. Be2 e5 15. Bxc4 Nxc4 16. 0-0 c6 17. Qe2 Nb6 18. dxc6 bxc6 19. Rfd1 Qe7 20. Rd3 Rfd8 21. Rad1 Rxd3 22. Qxd3 Rc8 23. g3 Rc7 24. Qd8 Qxd8 25. Rxd8 Rd7 26. Rxd7 Nxd7 27. f4 Kf6 28. Kf2 Ke6 29. Ke3 f5 30. h3 Nf6 31. Kf3 h6 32. exf5+ Kxf5 33. g4+ Ke6 34. Ne4 Nxe4 35. Kxe4 exf4 36. Kxf4 Kd5 37. h4 c5 38. b3 Kd6 39. Ke4 Ke6 40. a3 a5 41. a4 Kd6 42. h5 gxh5 43. gxh5 Ke6 44. Kf4 Kf6 45. Ke4 Ke6 46. Kd3 1/2-1/2

[Event "Mazowiec-chT 1314"]
[Site "Poland"]
[Date "2014.01.12"]
[Round "1.11"]
[White "Zaczek, Jonathon"]
[Black "Zychowicz, Marcin"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "2062"]
[BlackElo "1731"]
[PlyCount "93"]
[EventDate "2014.01.12"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. a4 Bg4 9. c3 0-0 10. h3 Bh5 11. d3 Qd7 12. Nbd2 Na5 13. Bc2 c5 14. Nf1 Bg6 15. Ne3 Rfe8 16. Nh4 d5 17. Nxg6 hxg6 18. exd5 Nxd5 19. Nxd5 Qxd5 20. d4 f5 21. Rxe5 Qd7 22. dxc5 Qxd1+ 23. Bxd1 Bxc5 24. Rxe8+ Rxe8 25. Kf1 b4 26. Bd2 Nc6 27. Bf3 Rd8 28. Bg5 Rd6 29. Bf4 Rf6 30. Rc1 Ne7 31. Rd1 Kf7 32. Rd8 bxc3 33. bxc3 Rb6 34. Ra8 Ke6 35. a5 Rb1+ 36. Ke2 Rb2+ 37. Kd3 Bxf2 38. Rxa6+ Kd7 39. Rd6+ Ke8 40. Be3 Bg3 41. Rb6 Ra2 42. a6 Nc8 43. Rxg6 Kf7 44. Rxg3 Rxa6 45. Bd5+ Kf8 46. Bc5+ Nd6 47. Rg6 1-0

[Event "EU-ch rapid"]
[Site "Warsaw"]
[Date "2013.12.15"]
[Round "10"]
[White "Zaczek, Jonathon"]
[Black "Cyfka, Karina"]
[Result "0-1"]
[ECO "C88"]
[WhiteElo "2062"]
[BlackElo "2405"]
[PlyCount "93"]
[EventDate "2013.12.14"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 157 Extra"]
[Source "ChessBase"]
[SourceDate "2013.12.19"]
[SourceVersion "1"]
[SourceVersionDate "2013.12.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 Bb7 9. d3 d6 10. c3 Na5 11. Bc2 c5 12. Nbd2 Nc6 13. Nf1 Rb8 14. axb5 axb5 15. Ne3 Bc8 16. Bd2 h6 17. Bb3 Be6 18. Ra6 Qc8 19. Ra1 Nd8 20. Nh4 Nxe4 21. dxe4 Bxh4 22. Nd5 c4 23. Bc2 Nc6 24. Qh5 Bd8 25. Bxh6 Bg4 26. Qg5 Bxg5 27. Bxg5 f6 28. Bd2 Kh8 29. Re3 Ra8 30. Rae1 Ra2 31. Bc1 Rf7 32. Rg3 Be6 33. Ne3 b4 34. Bd1 g5 35. h4 gxh4 36. Rg6 Kh7 37. Bh5 Ne7 38. Rg4 Bxg4 39. Bxg4 Qc5 40. g3 bxc3 41. bxc3 hxg3 42. Kg2 gxf2 43. Rh1+ Kg7 44. Be6 Rf8 45. Bf5 Rh8 46. Rf1 Rh5 47. Bg4 0-1

[Event "EU-ch rapid"]
[Site "Warsaw"]
[Date "2013.12.14"]
[Round "5"]
[White "Plat, Vojtech"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2470"]
[BlackElo "2062"]
[PlyCount "71"]
[EventDate "2013.12.14"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 157 Extra"]
[Source "ChessBase"]
[SourceDate "2013.12.19"]
[SourceVersion "1"]
[SourceVersionDate "2013.12.19"]
[SourceQuality "1"]

1. b3 c5 2. Bb2 Nc6 3. e4 e6 4. g3 d6 5. Bg2 Nf6 6. Ne2 Be7 7. 0-0 0-0 8. d4 cxd4 9. Nxd4 Qc7 10. Nd2 Nxd4 11. Bxd4 Bd7 12. c4 a6 13. Rc1 Rac8 14. a4 a5 15. Nb1 Bc6 16. Nc3 b6 17. Nd5 exd5 18. cxd5 Nd7 19. Rxc6 Qb7 20. e5 dxe5 21. Be3 Bc5 22. Bg5 Rfe8 23. Qg4 Nf8 24. Rd1 Bd4 25. Rdc1 Bc5 26. Be3 Nd7 27. Bh6 g6 28. Bh3 Red8 29. Bg5 Rxc6 30. dxc6 Qxc6 31. Bxd8 Bxf2+ 32. Kxf2 Qxc1 33. Qxd7 Qc2+ 34. Ke1 Qc1+ 35. Qd1 Qe3+ 36. Kf1 1-0

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.03.11"]
[Round "10"]
[White "Choroszej, Aleksander"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2097"]
[BlackElo "2100"]
[PlyCount "49"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 cxd4 10. cxd4 Nd7 11. 0-0 Nf6 12. Bd3 b6 13. Qe2 Bb7 14. Rd1 Rc8 15. Bb2 Qc7 16. d5 Nd7 17. Bxg7 Kxg7 18. Qe3 Qc3 19. Rb3 Qc5 20. Nd4 Ne5 21. Be2 Nc4 22. Qg5 Nd6 23. Rh3 h5 24. Rxh5 Rh8 25. Qe5+ 1-0

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.03.08"]
[Round "11"]
[White "Zaczek, Jonathon"]
[Black "Szymczak, Rafal"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2100"]
[BlackElo "2067"]
[PlyCount "106"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bd2 c6 6. Bd3 Qc7 7. Nge2 e6 8. Ng3 Nbd7 9. Qe2 b6 10. 0-0-0 Bb7 11. Rhe1 0-0-0 12. Ba6 Bd6 13. Nge4 Bf4 14. Bxb7+ Kxb7 15. g3 Bxd2+ 16. Rxd2 h6 17. Red1 Nd5 18. Rd3 Rhe8 19. f4 N7f6 20. Nxf6 Nxf6 21. Kb1 Rd7 22. Ne4 Nxe4 23. Qxe4 g6 24. d5 cxd5 25. Rxd5 Rxd5 26. Rxd5 Kb8 27. Rd4 Rd8 28. Qd3 Rxd4 29. Qxd4 h5 30. b3 Kc8 31. Kb2 Qc6 32. Qf6 Qd7 33. a4 a5 34. h3 Kb7 35. g4 hxg4 36. hxg4 Kc6 37. g5 Kb7 38. Kc3 Qc6+ 39. Kd3 Qf3+ 40. Kd2 Qd5+ 41. Kc3 Qc6+ 42. Kb2 Qd7 43. Qe5 Qd2 44. Qf6 Qd7 45. Qg7 Ka6 46. Qe5 Kb7 47. Qe4+ Qc6 48. Qd4 Qc7 49. Kc1 Qc6 50. Kd2 Qg2+ 51. Kc3 Qf3+ 52. Kb2 Qc6 53. Qe5 Qd7 1/2-1/2

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.02.27"]
[Round "8"]
[White "Delega, Tomasz"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "D01"]
[WhiteElo "2129"]
[BlackElo "2100"]
[PlyCount "118"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Qd3 c5 5. dxc5 e6 6. e4 Nxc5 7. Qd4 Ncxe4 8. Nxe4 dxe4 9. Bxf6 gxf6 10. Qxe4 Qa5+ 11. c3 Qe5 12. Qxe5 fxe5 13. Nf3 f6 14. Bb5+ Ke7 15. 0-0-0 Bg7 16. Rhe1 a6 17. Ba4 b5 18. Bc2 Bb7 19. Be4 Bxe4 20. Rxe4 Rad8 21. Rxd8 Rxd8 22. Rh4 h6 23. a4 Kd6 24. axb5 axb5 25. Rg4 Rd7 26. Kc2 f5 27. Rg6 Kd5 28. Nd2 e4 29. g4 f4 30. h4 Ke5 31. h5 e3 32. fxe3 fxe3 33. Nf3+ Kf4 34. Ne1 e5 35. g5 e4 36. gxh6 Be5 37. Rg8 Rd2+ 38. Kc1 Rh2 39. Rf8+ Kg3 40. Rf5 Bh8 41. h7 Rh1 42. Kd1 b4 43. Rg5+ Kf2 44. Rg2+ Kf1 45. Re2 Rxh5 46. Rxe3 bxc3 47. bxc3 Rxh7 48. Rxe4 Bxc3 49. Rf4+ Kg1 50. Nd3 Kg2 51. Rf2+ Kg3 52. Rf1 Ra7 53. Kc2 Bd4 54. Nc1 Re7 55. Kd3 Bf2 56. Ne2+ Kf3 57. Nd4+ Kg2 58. Rb1 Re3+ 59. Kc4 Re4 1/2-1/2

[Event "Mazowiec-chT 1213"]
[Site "Poland"]
[Date "2013.02.24"]
[Round "9.11"]
[White "Borowicz, Przemyslaw"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1984"]
[BlackElo "2100"]
[PlyCount "126"]
[EventDate "2013.01.13"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nf3 Be6 8. Ng5 Bg4 9. f3 Bh5 10. Be3 Be7 11. Bc4 Nc6 12. 0-0 Rc8 13. Ba2 0-0 14. Qd2 Na5 15. b3 Bg6 16. Nh3 d5 17. Nxd5 Nxd5 18. Qxd5 Qxd5 19. exd5 Bxc2 20. f4 e4 21. Nf2 Nxb3 22. Rae1 Nc5 23. Bd4 Rfe8 24. Re3 Nxa4 25. Nxe4 Bb4 26. Be5 Bxe4 27. Rxe4 Bc5+ 28. Kh1 Nc3 29. Bxc3 Rxe4 30. Be5 f6 31. d6+ Kf8 32. Bd5 Re2 33. Bxb7 Rd8 34. Bxa6 Rf2 35. Rxf2 Bxf2 36. Bc3 Bc5 37. g3 Rxd6 38. Be2 Re6 39. Bg4 Ra6 40. Kg2 Ra2+ 41. Kh3 Bg1 42. Bb4+ Kf7 43. Bf3 Rxh2+ 44. Kg4 h5+ 45. Kf5 g6+ 46. Ke4 Bf2 47. g4 hxg4 48. Bxg4 f5+ 49. Bxf5 gxf5+ 50. Kxf5 Bc5 51. Ba5 Bd6 52. Bd8 Ra2 53. Bg5 Ra5+ 54. Kg4 Kg6 55. Bd8 Ra4 56. Bg5 Rc4 57. Kf3 Kf5 58. Bd8 Rc3+ 59. Ke2 Bxf4 60. Ba5 Rb3 61. Be1 Ke4 62. Ba5 Rb2+ 63. Kf1 Kf3 0-1

[Event "Mazowiec-chT 1213"]
[Site "Poland"]
[Date "2013.02.24"]
[Round "10.1"]
[White "Zaczek, Jonathon"]
[Black "Brudzinski, Maciej"]
[Result "1-0"]
[ECO "B29"]
[WhiteElo "2100"]
[BlackElo "1808"]
[PlyCount "121"]
[EventDate "2013.01.13"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 Nxc3 5. dxc3 d5 6. exd6 Qxd6 7. Qxd6 exd6 8. Bf4 Be6 9. 0-0-0 Kd7 10. Ne5+ Kc7 11. Nc4 Bxc4 12. Bxc4 f6 13. h4 Nc6 14. Rhe1 Ne5 15. Bd5 Rd8 16. Re2 g6 17. Rde1 h5 18. Bd2 b5 19. b3 Rh7 20. f4 Nd7 21. Re6 Nb6 22. c4 Bg7 23. Re7+ Rd7 24. Rxd7+ Kxd7 25. Be6+ Kc6 26. cxb5+ Kxb5 27. Bf7 Bh6 28. Bxg6 Rg7 29. f5 Bxd2+ 30. Kxd2 Kb4 31. Re6 d5 32. Rxf6 d4 33. Rf7 Rg8 34. Rxa7 Nd5 35. g4 hxg4 36. Bf7 Rd8 37. a3+ Kb5 38. Be6 Nc3 39. Rh7 g3 40. Ke1 Kc6 41. Bc4 Re8+ 42. Kf1 Nd1 43. Kg2 Ne3+ 44. Kxg3 Nxf5+ 45. Kf4 Rf8 46. Ke5 Ne3 47. Rh6+ Kc7 48. Rh7+ Kc6 49. Bd3 Ng4+ 50. Ke6 Nf6 51. Rh6 Ng8 52. Rh7 Nf6 53. Rf7 Rxf7 54. Kxf7 Ng4 55. h5 Kd6 56. Kg7 Ke5 57. h6 Kf4 58. h7 Nf2 59. h8Q Nxd3 60. cxd3 Ke3 61. Qh3+ 1-0

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.02.21"]
[Round "7"]
[White "Luksik, Mateusz"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "A65"]
[WhiteElo "2099"]
[BlackElo "2100"]
[PlyCount "27"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 c5 4. d5 d6 5. e4 Bg7 6. Nc3 0-0 7. Bg5 e6 8. Qd2 exd5 9. cxd5 h6 10. Bxh6 Nxe4 11. Nxe4 Qh4+ 12. g3 Bxh6 13. gxh4 Bxd2+ 14. Kxd2 1-0

[Event "Mazowiec-chT 1213"]
[Site "Poland"]
[Date "2013.02.17"]
[Round "8.16"]
[White "Zaczek, Jonathon"]
[Black "Toczek, Grzegorz"]
[Result "1/2-1/2"]
[ECO "B57"]
[WhiteElo "2100"]
[BlackElo "2285"]
[PlyCount "69"]
[EventDate "2013.01.13"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 7. Nde2 e6 8. Bb3 a6 9. Be3 Qc7 10. f4 b5 11. f5 Ne5 12. Nd4 Nc4 13. Bxc4 Qxc4 14. fxe6 fxe6 15. Qd3 Qc7 16. 0-0 Be7 17. Rf3 0-0 18. Raf1 Bd7 19. Bg5 Qc5 20. Be3 Qc7 21. Bg5 Qb7 22. Rh3 g6 23. Rhf3 Kg7 24. Qd2 b4 25. Qf2 Ng4 26. Qh4 Rxf3 27. Rxf3 Bxg5 28. Qxg5 Re8 29. Qxg4 bxc3 30. Qf4 Bc8 31. Qf6+ Kg8 32. bxc3 e5 33. Nf5 Bxf5 34. exf5 e4 35. Rf1 1/2-1/2

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.02.14"]
[Round "6"]
[White "Zaczek, Jonathon"]
[Black "Liberadzki, Slawomir"]
[Result "0-1"]
[ECO "B44"]
[WhiteElo "2100"]
[BlackElo "2104"]
[PlyCount "56"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 a6 7. N5c3 Nf6 8. Be2 Be7 9. 0-0 b6 10. Be3 Bb7 11. f3 0-0 12. Na3 Re8 13. Kh1 d5 14. exd5 exd5 15. Bg1 dxc4 16. Nxc4 b5 17. Nb6 Qxd1 18. Rfxd1 Rad8 19. Rxd8 Bxd8 20. Bf1 Ne5 21. Rd1 Nxf3 22. Bc5 Bc7 23. Ncd5 Nxd5 24. Nxd5 Bxd5 25. Rxd5 Nxh2 26. Bd3 Re1+ 27. Bg1 Ng4 28. g3 Bb6 0-1

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.02.13"]
[Round "4"]
[White "Zaczek, Jonathon"]
[Black "Kielar, Maciej"]
[Result "0-1"]
[ECO "B44"]
[WhiteElo "2100"]
[BlackElo "2106"]
[PlyCount "74"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 Nc6 3. c4 e6 4. Nbc3 Nf6 5. d4 cxd4 6. Nxd4 Bb4 7. Nxc6 bxc6 8. e5 Ne4 9. Bd2 Nxd2 10. Qxd2 Qa5 11. f4 0-0 12. Bd3 Ba6 13. Rc1 f6 14. exf6 Rxf6 15. 0-0 d5 16. Qe2 Bd6 17. Kh1 Raf8 18. cxd5 Bxd3 19. Qxd3 exd5 20. g3 Re8 21. Rfe1 Qd8 22. Qa6 Bc5 23. Qb7 Be3 24. Rcd1 Re7 25. Qb3 Rfe6 26. f5 Re5 27. Qa4 Qc8 28. g4 d4 29. Qc4+ Kh8 30. Rxe3 dxe3 31. Qf4 c5 32. Kg2 e2 33. Re1 Qb7+ 34. Kf2 Qxb2 35. f6 gxf6 36. Qxf6+ Kg8 37. Rb1 e1Q+ 0-1

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.02.08"]
[Round "5"]
[White "Jarmula, Lukasz"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2164"]
[BlackElo "2100"]
[PlyCount "89"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. Qa4+ Bd7 5. Qb3 dxc4 6. Qxc4 Bg7 7. e4 Bc6 8. Qe2 0-0 9. d4 b6 10. Bg5 Bb7 11. 0-0-0 c6 12. Qd2 b5 13. Bd3 Qa5 14. e5 b4 15. Ne4 Nd5 16. Nc5 Bc8 17. Kb1 Nd7 18. Nb3 Qb6 19. Be4 f6 20. Bh6 a5 21. Bxd5+ cxd5 22. Rc1 Ba6 23. Bxg7 Kxg7 24. Nc5 Rfd8 25. Rhe1 Nxc5 26. dxc5 Qc7 27. Nd4 Bc8 28. exf6+ exf6 29. Nb5 Bf5+ 30. Ka1 Qd7 31. c6 Qf7 32. c7 Rf8 33. Nd6 Qd7 34. c8Q Raxc8 35. Nxc8 Rxc8 36. Rxc8 Qxc8 37. Re7+ Kf8 38. Rxh7 Qc4 39. Qh6+ Ke8 40. Rh8+ Kf7 41. Rf8+ Ke6 42. Qe3+ Kd6 43. Rxf6+ Kd7 44. Rf7+ Kc6 45. Qe8+ 1-0

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.02.01"]
[Round "2"]
[White "Zaczek, Jonathon"]
[Black "Szewczyk, Mariusz"]
[Result "0-1"]
[ECO "C40"]
[WhiteElo "2100"]
[BlackElo "2074"]
[PlyCount "72"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d5 3. exd5 e4 4. Qe2 Nf6 5. Nc3 Be7 6. Nxe4 0-0 7. Nxf6+ Bxf6 8. Qc4 b6 9. d4 c6 10. dxc6 Ba6 11. Qc3 Bxf1 12. Rxf1 Qe7+ 13. Be3 Rc8 14. 0-0-0 Nxc6 15. Qb3 a5 16. a3 b5 17. Rfe1 a4 18. Qd5 Qc7 19. Qxb5 Ne5 20. Qc5 Qb7 21. dxe5 Rxc5 22. Bxc5 Be7 23. Bd4 Rc8 24. Rd3 Qb5 25. Red1 h6 26. Bc3 Qc4 27. Rd4 Qc6 28. R1d2 Bxa3 29. Rd8+ Rxd8 30. Rxd8+ Kh7 31. e6 Qxc3 32. bxa3 Qxa3+ 33. Kd2 fxe6 34. Rd4 Qa1 35. Rb4 a3 36. Nd4 Qf1 0-1

[Event "Mazowiec-chT 1213"]
[Site "Poland"]
[Date "2013.01.27"]
[Round "5.1"]
[White "Jarmula, Pawel"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2196"]
[BlackElo "2100"]
[PlyCount "75"]
[EventDate "2013.01.13"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Qc7 4. 0-0 e6 5. Re1 Nge7 6. c3 a6 7. Bf1 d6 8. d4 e5 9. dxe5 dxe5 10. h3 Ng6 11. Na3 b5 12. Nc2 c4 13. Ne3 Bc5 14. b3 cxb3 15. axb3 Qb7 16. b4 Bxe3 17. Bxe3 0-0 18. Nd2 Rd8 19. Qb1 Be6 20. Nb3 Bxb3 21. Qxb3 Rac8 22. f3 Nf8 23. Red1 Ne6 24. Ra2 Rxd1 25. Qxd1 Rd8 26. Rd2 Qc7 27. Rxd8+ Ncxd8 28. Qb3 Qd6 29. Qd5 Qc7 30. c4 bxc4 31. Qxc4 Qxc4 32. Bxc4 Nc6 33. Bc5 Nxc5 34. bxc5 a5 35. Bd5 Nd4 36. Kf2 Kf8 37. Ke3 Ke7 38. Kd3 1/2-1/2

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.01.23"]
[Round "3"]
[White "Goslawski, Michal"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2131"]
[BlackElo "2100"]
[PlyCount "68"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. Qa4+ Bd7 5. Qb3 dxc4 6. Qxc4 Nc6 7. e4 Bg7 8. d4 0-0 9. Bf4 Nh5 10. Be3 Na5 11. Qb4 Nc6 12. Qc4 Na5 13. Qd3 f5 14. b4 fxe4 15. Nxe4 Nc6 16. Qb3+ Kh8 17. Neg5 e5 18. Nf7+ Rxf7 19. Qxf7 exd4 20. Bg5 Qc8 21. Qb3 Qe8+ 22. Kd2 h6 23. Bh4 Qf8 24. Bg3 Nf4 25. Re1 Be6 26. Rxe6 Nxe6 27. Qxe6 Qxb4+ 28. Kd1 Qb1+ 29. Kd2 Qb2+ 30. Kd1 Qa1+ 31. Kd2 Qc3+ 32. Kd1 Qa1+ 33. Kd2 Qb2+ 34. Kd1 Qb1+ 1/2-1/2

[Event "Warsaw YMCA Winter 116th"]
[Site "Warsaw"]
[Date "2013.01.10"]
[Round "1"]
[White "Sanz Losada, Victoriano"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2093"]
[BlackElo "2100"]
[PlyCount "89"]
[EventDate "2013.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 c5 4. d5 d6 5. e4 Bg7 6. f3 0-0 7. Be3 e6 8. Qd2 exd5 9. exd5 Re8 10. 0-0-0 a6 11. g4 Qe7 12. Bg5 Nbd7 13. h4 Ne5 14. h5 Bd7 15. hxg6 fxg6 16. Qh2 h6 17. Bd2 g5 18. Be2 b5 19. Re1 bxc4 20. Nh3 Qf7 21. Nf2 Nxd5 22. Nxd5 Qxd5 23. Ne4 Nd3+ 24. Bxd3 cxd3 25. Nc3 Qd4 26. f4 Rab8 27. fxg5 Qb4 28. Rxe8+ Bxe8 29. b3 Bxc3 30. Qxh6 Bxd2+ 31. Kb1 Qf4 32. Qh7+ Kf8 33. Qc7 Rxb3+ 34. axb3 Bc3 35. Qh7 d2 36. Qd3 Bc6 37. Rf1 Qxf1+ 38. Qxf1+ Ke7 39. Kc2 Bb5 40. Qh1 Bb4 41. Qf3 c4 42. g6 cxb3+ 43. Kxb3 Bc6 44. Qe2+ Kf6 45. Kxb4 1-0

[Event "EU-ch rapid"]
[Site "Warsaw"]
[Date "2012.12.15"]
[Round "2"]
[White "Zaczek, Jonathon"]
[Black "Naiditsch, Arkadij"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2118"]
[BlackElo "2708"]
[PlyCount "78"]
[EventDate "2012.12.15"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nf3 e6 6. Bd3 Nf6 7. 0-0 d6 8. c4 Be7 9. Nc3 0-0 10. b3 a6 11. Bb2 Bd7 12. Qe2 Qa5 13. Rad1 Rfd8 14. Rfe1 Rab8 15. a3 Qh5 16. h3 Re8 17. b4 Rbd8 18. Nb1 Bc8 19. Nbd2 a5 20. Bc3 axb4 21. axb4 d5 22. e5 dxc4 23. Bxc4 Nd5 24. Bxd5 Rxd5 25. b5 Nb4 26. Ne4 Bd7 27. Ng3 Qg6 28. Qb2 Nd3 29. Rxd3 Qxd3 30. b6 Rc8 31. Re3 Qd1+ 32. Kh2 Rb5 33. Qa2 Bc5 34. Re2 Qd5 35. Qa1 Rxb6 36. Ne4 Be7 37. Nf6+ gxf6 38. exf6 Ra6 39. Qc1 Bxf6 0-1

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.14"]
[Round "9"]
[White "Zaczek, Jonathon"]
[Black "Zaninotto, Franco"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2096"]
[BlackElo "2199"]
[PlyCount "101"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. c4 cxd4 5. Nxd4 Qb6 6. Nb5 a6 7. Be3 Qa5+ 8. Bd2 Qb6 9. Be3 Qa5+ 10. N5c3 d6 11. Be2 Nf6 12. 0-0 0-0 13. Na3 Nbd7 14. f3 Qd8 15. Qd2 b6 16. Rac1 Bb7 17. Nc2 Rc8 18. Nd4 Ne5 19. Nd5 Nfd7 20. Bg5 Re8 21. Rfd1 Nc6 22. Nxc6 Bxc6 23. b4 Ba4 24. Re1 Bc6 25. Red1 Ba4 26. Re1 Bc6 27. Kh1 f6 28. Be3 e6 29. Nf4 Qe7 30. Bf1 b5 31. a3 Ne5 32. c5 Red8 33. Qa2 d5 34. exd5 Bxd5 35. Nxd5 exd5 36. a4 Nc4 37. Bh6 Qd7 38. Bxg7 Kxg7 39. axb5 axb5 40. Rcd1 Re8 41. Rxe8 Rxe8 42. Bxc4 bxc4 43. h3 Qb7 44. Qd2 Rd8 45. Qc3 Qc6 46. Qd4 Rd7 47. Re1 Rb7 48. Qc3 Rd7 49. Qd4 Rb7 50. Qc3 Rd7 51. Qd4 1/2-1/2

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.13"]
[Round "8"]
[White "Kukawski, Maciej"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2346"]
[BlackElo "2096"]
[PlyCount "105"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 g6 5. Nf3 Bg7 6. dxc5 Qxc5 7. Be3 Qc7 8. Be2 Nh6 9. Na3 a6 10. Qa4+ Bd7 11. Qb3 Bc6 12. 0-0 Nd7 13. Nd4 0-0 14. Nac2 Be4 15. f3 Nc5 16. Qa3 Bd3 17. Rad1 Bxe2 18. Nxe2 b6 19. Ng3 Nf5 20. Nxf5 gxf5 21. Bxc5 bxc5 22. Rd5 Rfd8 23. Rxf5 Rd2 24. Ne3 Rad8 25. Re1 e6 26. Rg5 Kh8 27. Qb3 Bh6 28. Rg4 f5 29. Rh4 Bg5 30. Qxe6 Bxh4 31. Nxf5 Rd1 32. Nxh4 Qf4 33. g3 Qd2 34. Qe5+ Kg8 35. Rxd1 Qxd1+ 36. Kg2 Qd5 37. Qf6 Qd2+ 38. Kh3 Qd7+ 39. Nf5 Rf8 40. Qg5+ Kh8 41. g4 Qf7 42. Qe3 Qd5 43. c4 Qc6 44. Qe5+ Qf6 45. Qxc5 h5 46. Kg3 hxg4 47. fxg4 Rd8 48. Qe3 Kg8 49. c5 Kf8 50. c6 Re8 51. Qc5+ Kg8 52. c7 Qe6 53. c8Q 1-0

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.12"]
[Round "7"]
[White "Zaczek, Jonathon"]
[Black "Pietocha, Pawel"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2096"]
[BlackElo "2125"]
[PlyCount "69"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. f3 c5 4. Ne2 cxd4 5. Nxd4 d6 6. c4 Nf6 7. Nc3 Bd7 8. Be2 Nc6 9. Nc2 0-0 10. 0-0 Rc8 11. Bd2 Ne8 12. Kh1 f5 13. exf5 Bxf5 14. Ne3 Be6 15. Rc1 Ne5 16. Qa4 Nc7 17. Qxa7 Na6 18. Ncd5 Nd7 19. Qxb7 Ra8 20. b4 Be5 21. f4 Bd4 22. c5 Bxe3 23. Nxe3 dxc5 24. Bxa6 Nb6 25. Bc3 Bc8 26. Bc4+ Nxc4 27. Qxa8 Nxe3 28. Rfe1 Nf5 29. bxc5 Qd3 30. Qe4 Qxe4 31. Rxe4 Bb7 32. Re2 Rd8 33. Rd2 Rc8 34. Be5 Kf7 35. Kg1 1-0

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.10"]
[Round "6"]
[White "Jarmula, Lukasz"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2149"]
[BlackElo "2096"]
[PlyCount "73"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2 Nbd7 9. g4 h6 10. 0-0-0 b4 11. Nce2 Qc7 12. h4 d5 13. Bf4 e5 14. Bh2 dxe4 15. g5 hxg5 16. hxg5 Rxh2 17. Rxh2 exd4 18. Rh8 Nd5 19. Qxd4 Bb7 20. fxe4 N5b6 21. Qxb4 0-0-0 22. Qb3 Bc5 23. Rxd8+ Qxd8 24. Qxf7 Qxg5+ 25. Kb1 Qe5 26. Bh3 Qe7 27. Qg8+ Kc7 28. Nf4 Bxe4 29. Ne6+ Kb7 30. Re1 Bd5 31. Nxc5+ Qxc5 32. Be6 Bxe6 33. Qxe6 Qd4 34. c3 Qd2 35. Rg1 Qd3+ 36. Kc1 Nc4 37. Rd1 1-0

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.10"]
[Round "5"]
[White "Zaczek, Jonathon"]
[Black "Socko, Monika"]
[Result "0-1"]
[ECO "C12"]
[WhiteElo "2096"]
[BlackElo "2467"]
[PlyCount "60"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. bxc3 Ne4 8. Qg4 g6 9. Qf4 c5 10. Bd3 Nxd2 11. Qxd2 Qa5 12. f4 Nc6 13. Nf3 Bd7 14. h4 0-0-0 15. dxc5 Qxc5 16. Ke2 d4 17. cxd4 Nxd4+ 18. Nxd4 Qxd4 19. Qe3 Bc6 20. Rhg1 Qa4 21. g3 Rd4 22. Rgd1 Rhd8 23. Rab1 Qa5 24. h5 Qd5 25. hxg6 fxg6 26. Qf2 g5 27. c4 Qa5 28. Rb2 g4 29. Rdd2 Bf3+ 30. Ke3 Rxd3+ 0-1

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.09"]
[Round "4"]
[White "Maciaga, Marcin"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "D76"]
[WhiteElo "2224"]
[BlackElo "2096"]
[PlyCount "58"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Bg7 6. Nf3 0-0 7. 0-0 Nb6 8. Nc3 Nc6 9. e3 Re8 10. Re1 a5 11. Qe2 Be6 12. Rd1 Bc4 13. Qc2 Nb4 14. Qb1 e5 15. b3 exd4 16. Nxd4 Bd3 17. Qb2 c5 18. Nde2 Qf6 19. Rd2 Rad8 20. a3 Bxe2 21. axb4 Rxd2 22. Bxd2 axb4 23. Rc1 Bf3 24. Bf1 Qe7 25. Qc2 bxc3 26. Bxc3 Rc8 27. Bh3 Rc6 28. Bg2 Bxg2 29. Kxg2 c4 0-1

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.08"]
[Round "3"]
[White "Zaczek, Jonathon"]
[Black "Bartel, Marta"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2096"]
[BlackElo "2276"]
[PlyCount "74"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. f3 d6 4. c4 Nc6 5. Ne2 e5 6. Be3 exd4 7. Nxd4 Nge7 8. Nc3 0-0 9. Nxc6 Nxc6 10. Qd2 Be6 11. 0-0-0 Ne5 12. c5 dxc5 13. Bxc5 Qxd2+ 14. Kxd2 Rfd8+ 15. Kc2 b6 16. Be3 Nc6 17. Bb5 Nb4+ 18. Kb1 a6 19. Be2 b5 20. Bc5 Bxc3 21. bxc3 Nxa2 22. Kc2 Rdb8 23. Rb1 c6 24. Rb2 a5 25. Rhb1 b4 26. cxb4 Nxb4+ 27. Bxb4 axb4 28. Rxb4 Ra2+ 29. R4b2 Raxb2+ 30. Rxb2 Rxb2+ 31. Kxb2 Kf8 32. Kc3 c5 33. Bc4 Bc8 34. Bd5 Ba6 35. Bc4 Bc8 36. Bd5 Ba6 37. Bc4 Bc8 1/2-1/2

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.07"]
[Round "2"]
[White "Zaczek, Jonathon"]
[Black "Adamski, Jan"]
[Result "1/2-1/2"]
[ECO "B28"]
[WhiteElo "2096"]
[BlackElo "2322"]
[PlyCount "119"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c4 d6 4. d4 Bg4 5. d5 e5 6. dxe6 fxe6 7. e5 Nc6 8. exd6 Bxd6 9. Be2 Nf6 10. Be3 Qe7 11. Nbd2 0-0 12. 0-0 Rad8 13. Re1 Bc7 14. Qa4 Ba5 15. Red1 Bxd2 16. Bxd2 Bxf3 17. Bxf3 Nd4 18. Bg5 h6 19. Be3 e5 20. Qa3 Nc2 21. Bxc5 Qc7 22. Qc3 Nxa1 23. Bxf8 Rxd1+ 24. Bxd1 Kxf8 25. b4 Qd6 26. Qxa1 Qxb4 27. Qxe5 Qd2 28. Qe2 Ne4 29. Qxd2 Nxd2 30. Be2 Ke7 31. f4 Kd6 32. Kf2 Kc5 33. Ke3 Nxc4+ 34. Kd3 b5 35. Kc3 Ne3 36. g3 a5 37. a3 Nf5 38. g4 Nd4 39. Bd3 b4+ 40. axb4+ axb4+ 41. Kb2 Nf3 42. h3 Kd4 43. Bg6 Ke3 44. g5 hxg5 45. fxg5 Kd4 46. Kb3 Kc5 47. Be8 Nxg5 48. h4 Nf3 49. h5 Nd4+ 50. Kb2 Nb5 51. Kb3 Nd4+ 52. Kb2 Kd5 53. Bg6 Ke5 54. Bf7 Kf6 55. Be8 Kg5 56. Bf7 Kh4 57. Be8 Kg4 58. Bf7 Ne2 59. h6 gxh6 60. Kb3 1/2-1/2

[Event "Warsaw Najdorf Memorial op-A"]
[Site "Warsaw"]
[Date "2012.08.06"]
[Round "1"]
[White "Deszczynski, Adam"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B81"]
[WhiteElo "2365"]
[BlackElo "2096"]
[PlyCount "107"]
[EventDate "2012.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 b5 8. Bg2 Bb7 9. g5 Nfd7 10. a3 Nb6 11. h4 N8d7 12. h5 Be7 13. g6 Bf6 14. gxf7+ Kxf7 15. 0-0 Re8 16. f4 Nc4 17. Kh1 Bxd4 18. Qxd4 Qh4+ 19. Kg1 Nf6 20. Qf2 Qxh5 21. Qg3 Rac8 22. Bf3 Qg6 23. Qxg6+ Kxg6 24. f5+ Kf7 25. fxe6+ Kxe6 26. e5 Bxf3 27. exf6 Bb7 28. fxg7 Rg8 29. Bh6 Rc7 30. Rae1+ Ne5 31. Rf2 Rf7 32. Rxf7 Kxf7 33. Rf1+ Nf3+ 34. Kf2 Kg6 35. Bf4 Ne5 36. Rd1 Kf5 37. Bg3 Rxg7 38. Rxd6 Nc4 39. Rd4 Nxb2 40. Rb4 Nc4 41. a4 Bc6 42. axb5 axb5 43. Nxb5 Bxb5 44. Rxb5+ Ke4 45. Rc5 Kd4 46. Rc7 Rxc7 47. Bxc7 Kc3 48. Kg3 Ne3 49. Kh4 Nd5 50. Be5+ Kxc2 51. Kg5 Ne7 52. Kh6 Ng6 53. Bd6 Nf8 54. Bxf8 1/2-1/2

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.06.22"]
[Round "11"]
[White "Sawicki, Mikolaj"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B87"]
[WhiteElo "2018"]
[BlackElo "2126"]
[PlyCount "39"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. 0-0 Be7 9. Qf3 Qc7 10. Qg3 0-0 11. Bh6 Ne8 12. Rad1 Bd7 13. Kh1 Nc6 14. Nxc6 Bxc6 15. a3 Kh8 16. Bg5 Bxg5 17. Qxg5 Nf6 18. f3 Rad8 19. Qf4 Rd7 20. Rd3 1/2-1/2

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.06.13"]
[Round "9"]
[White "Moskwinski, Tadeusz"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "D96"]
[WhiteElo "2127"]
[BlackElo "2126"]
[PlyCount "136"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. d4 g6 4. g3 Bg7 5. Bg2 dxc4 6. Qa4+ Nbd7 7. Nf3 0-0 8. Qxc4 Nb6 9. Qd3 Nbd5 10. e4 Nxc3 11. bxc3 c5 12. 0-0 Qa5 13. Bf4 cxd4 14. cxd4 b6 15. Rfc1 Ba6 16. Qe3 Rac8 17. Ne5 Bb7 18. a3 Qa4 19. Bf3 Rfd8 20. d5 e6 21. dxe6 fxe6 22. Rxc8 Rxc8 23. Rc1 Qe8 24. Nc4 Qc6 25. Qb3 Nxe4 26. Nd6 Qxc1+ 27. Bxc1 Rxc1+ 28. Kg2 Bd5 29. Qb4 Bc3 30. Qa4 Nxd6 31. Bxd5 exd5 32. Qf4 Rd1 33. Qxd6 Ba5 34. Kf3 d4 35. Kg4 Rc1 36. Qd8+ Kg7 37. Qxd4+ Kg8 38. Kg5 Rc5+ 39. Kg4 Rf5 40. f4 Rc5 41. Qd8+ Kg7 42. Qe7+ Kg8 43. Kf3 Rc3+ 44. Kg4 Rc5 45. Qxa7 Rf5 46. Qa8+ Kg7 47. Qb7+ Kg8 48. Qc8+ Kg7 49. Qd7+ Kg8 50. Kf3 Rc5 51. g4 Rc3+ 52. Ke4 Rc4+ 53. Kf3 Rc3+ 54. Ke2 Rc2+ 55. Ke3 Rc3+ 56. Kd4 Rc1 57. Qe6+ Kg7 58. f5 Rd1+ 59. Kc4 gxf5 60. gxf5 Rc1+ 61. Kb5 Rb1+ 62. Kc6 Re1 63. Qd7+ Kf6 64. Qxh7 Rc1+ 65. Kd7 Rd1+ 66. Ke8 Re1+ 67. Kf8 Rg1 68. Qf7+ Ke5 0-1

[Event "Warsaw-ch opA 65th"]
[Site "Warsaw"]
[Date "2012.06.02"]
[Round "8"]
[White "Eggink, Mateusz"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B97"]
[WhiteElo "1999"]
[BlackElo "2126"]
[PlyCount "60"]
[EventDate "2012.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Nbd7 9. Qf3 Qc7 10. 0-0-0 Be7 11. g4 b5 12. Bxf6 Nxf6 13. g5 Nd7 14. Bd3 b4 15. Ne2 Bb7 16. Rhg1 e5 17. Kb1 exf4 18. Nxf4 Ne5 19. Qe2 g6 20. h4 0-0 21. h5 Rfc8 22. hxg6 hxg6 23. Rh1 Kg7 24. Nd4 Qd7 25. Rdg1 Nxd3 26. cxd3 Rh8 27. Nf5+ gxf5 28. Nh5+ Kg6 29. Nf4+ Kg7 30. Nh5+ Kg6 1/2-1/2

[Event "Warsaw-ch opA 65th"]
[Site "Warsaw"]
[Date "2012.06.01"]
[Round "7"]
[White "Pastuszko, Kinga"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "1935"]
[BlackElo "2126"]
[PlyCount "73"]
[EventDate "2012.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[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 Nbd7 9. 0-0-0 Bb7 10. g4 Nb6 11. Qf2 Nfd7 12. Bd3 Qc7 13. Kb1 Rc8 14. h4 b4 15. Nce2 Nc5 16. Ng3 d5 17. exd5 Nxd5 18. Ne4 Nxd3 19. Rxd3 Be7 20. g5 Nxe3 21. Rxe3 0-0 22. Qg2 Rfd8 23. Nb3 a5 24. Ree1 a4 25. Nc1 Rd4 26. h5 Rc4 27. Re2 Bxe4 28. fxe4 b3 29. axb3 axb3 30. Nxb3 Qa7 31. g6 Ra8 32. gxf7+ Kh8 33. Rg1 Bf8 34. e5 Qa2+ 35. Kc1 Rb8 36. h6 g6 37. Qg5 1-0

[Event "Warsaw-ch opA 65th"]
[Site "Warsaw"]
[Date "2012.05.31"]
[Round "6"]
[White "Zaczek, Jonathon"]
[Black "Malec, Sebastian"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2126"]
[BlackElo "2143"]
[PlyCount "106"]
[EventDate "2012.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. c4 Nc6 7. Nxc6 dxc6 8. 0-0 e5 9. Be3 Nf6 10. f3 Nd7 11. a3 Bc5 12. Bxc5 Nxc5 13. b4 Ne6 14. c5 Nd4 15. Nd2 Be6 16. Bc4 Qe7 17. Rc1 0-0 18. Bxe6 Qxe6 19. Nc4 Rad8 20. Rf2 Qh6 21. Rd2 f6 22. Rc3 Rd7 23. Rcd3 Rfd8 24. Ne3 Nxf3+ 25. gxf3 Rxd3 26. Rxd3 Qxe3+ 27. Rxe3 Rxd1+ 28. Kf2 Kf7 29. Rb3 h5 30. Kg2 h4 31. Kh3 g5 32. Re3 Kg6 33. Rb3 f5 34. exf5+ Kxf5 35. a4 Kf4 36. b5 axb5 37. axb5 Rc1 38. bxc6 bxc6 39. Rb4+ Kxf3 40. Rc4 g4+ 41. Rxg4 e4 42. Rg6 e3 43. Rxc6 e2 44. Rf6+ Ke3 45. Re6+ Kd3 46. c6 e1Q 47. Rxe1 Rxe1 48. Kxh4 Ke4 49. Kg5 Rg1+ 50. Kf6 Rc1 51. h4 Kf4 52. h5 Rxc6+ 53. Kg7 Kg5 0-1

[Event "Warsaw-ch opA 65th"]
[Site "Warsaw"]
[Date "2012.05.30"]
[Round "5"]
[White "Pietocha, Pawel"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2124"]
[BlackElo "2126"]
[PlyCount "83"]
[EventDate "2012.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Na3 a6 7. Nc2 Be7 8. Be3 cxd4 9. Ncxd4 0-0 10. Qc2 Ng4 11. Bd3 g6 12. h3 Nxe3 13. fxe3 Nd7 14. e4 Qd6 15. 0-0-0 e5 16. Nb3 Qc7 17. g4 Bf6 18. g5 Bg7 19. h4 Nb6 20. Qh2 Bg4 21. Qg2 Bh5 22. Be2 Rad8 23. Nfd2 Bxe2 24. Qxe2 Rd7 25. h5 Rfd8 26. hxg6 hxg6 27. Na1 Rd3 28. Nc2 Na4 29. Nf3 Nc5 30. Nb4 Rxd1+ 31. Rxd1 Rxd1+ 32. Kxd1 Qd7+ 33. Nd5 Qg4 34. Nd2 Qxg5 35. b4 Ne6 36. Nc4 Bh6 37. Kc2 Nf4 38. Qd1 Bg7 39. Nd6 b5 40. Kb3 Qd8 41. Nb7 Qd7 42. Nf6+ 1-0

[Event "Warsaw-ch opA 65th"]
[Site "Warsaw"]
[Date "2012.05.29"]
[Round "4"]
[White "Zaczek, Jonathon"]
[Black "Alvarado, Carlos"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "2126"]
[BlackElo "2215"]
[PlyCount "92"]
[EventDate "2012.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nf3 Nf6 6. Nc3 Ng4 7. Qd2 e6 8. h3 Nge5 9. Nxe5 Nxe5 10. b3 a6 11. Bb2 Qc7 12. 0-0-0 f6 13. f4 Nc6 14. g3 Bb4 15. Bg2 b5 16. Qe3 0-0 17. e5 fxe5 18. fxe5 Bb7 19. Ne4 Ne7 20. Qd3 Nd5 21. Rhf1 Be7 22. Kb1 Rxf1 23. Bxf1 b4 24. Nd6 Bxd6 25. exd6 Qxd6 26. Qd4 Qe7 27. Bc4 Bc6 28. Bxd5 Bxd5 29. Qe5 Bc6 30. Rd4 Rf8 31. Rf4 Rxf4 32. Qxf4 h6 33. Be5 Qc5 34. Bd4 Qh5 35. Qe5 Qg6 36. Bc5 Be4 37. Kb2 Bxc2 38. Bxb4 Bb1 39. Qc3 Kh7 40. Bd6 Bd3 41. h4 Bf1 42. a4 Qf7 43. Qd4 Qf3 44. Ka3 Be2 45. Kb2 Bd1 46. Qc3 Qxc3+ 1/2-1/2

[Event "Warsaw-ch opA 65th"]
[Site "Warsaw"]
[Date "2012.05.28"]
[Round "3"]
[White "Winiarski, Mikolaj"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "E81"]
[WhiteElo "1873"]
[BlackElo "2126"]
[PlyCount "107"]
[EventDate "2012.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 c5 4. d5 d6 5. e4 Bg7 6. Ne2 0-0 7. Nbc3 e6 8. Bg5 Qb6 9. Qd2 exd5 10. Bxf6 Bxf6 11. Nxd5 Qd8 12. 0-0-0 Bg7 13. Ndf4 Nc6 14. Kb1 f5 15. Qd5+ Kh8 16. h4 Nb4 17. Qd2 fxe4 18. fxe4 Bg4 19. a3 Nc6 20. h5 gxh5 21. Nxh5 Be5 22. Qh6 Qe7 23. Rd2 Bxh5 24. Qxh5 Rf2 25. g3 Qf7 26. Qxf7 Rxf7 27. Bh3 Ne7 28. Nf4 Rg7 29. Bf5 Bxf4 30. gxf4 Nxf5 31. exf5 Rf8 32. Rxd6 Rxf5 33. Rd8+ Rg8 34. Rd7 Rg7 35. Rd8+ Rg8 36. Rxg8+ Kxg8 37. Rf1 Rh5 38. Kc2 Rh2+ 39. Kd3 Rxb2 40. Ke4 Kf7 41. Rd1 Re2+ 42. Kf5 h5 43. Rh1 Rc2 44. Rxh5 Rxc4 45. Rh7+ Kg8 46. Rxb7 Ra4 47. Kg5 Rxa3 48. f5 Ra6 49. f6 Ra1 50. Rc7 Rg1+ 51. Kf5 Rf1+ 52. Ke6 Ra1 53. Kf5 Rf1+ 54. Kg6 1/2-1/2

[Event "Warsaw-ch opA 65th"]
[Site "Warsaw"]
[Date "2012.05.27"]
[Round "2"]
[White "Zaczek, Jonathon"]
[Black "Jarmula, Lukasz"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "2126"]
[BlackElo "2013"]
[PlyCount "56"]
[EventDate "2012.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. f3 g6 4. c4 Bg7 5. Ne2 0-0 6. Be3 c5 7. d5 Nh5 8. Nbc3 e5 9. g4 Nf4 10. Nxf4 exf4 11. Bxf4 Qh4+ 12. Bg3 Qe7 13. Qd2 Bxg4 14. fxg4 Bxc3 15. bxc3 Qxe4+ 16. Qe2 Qxh1 17. 0-0-0 Nd7 18. Bg2 Rae8 19. Qf2 Qxd1+ 20. Kxd1 Ne5 21. Bxe5 Rxe5 22. Qf6 Rfe8 23. Bf3 Re1+ 24. Kd2 Rf1 25. h4 b5 26. h5 bxc4 27. h6 Rf2+ 28. Kd1 Rf1+ 1/2-1/2

[Event "Warsaw-ch opA 65th"]
[Site "Warsaw"]
[Date "2012.05.26"]
[Round "1"]
[White "Rozycki, Bartlomiej"]
[Black "Zaczek, Jonathon"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "1849"]
[BlackElo "2126"]
[PlyCount "56"]
[EventDate "2012.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Bd3 Be7 8. Be3 Nbd7 9. 0-0 0-0 10. a4 Nc5 11. Kh1 Qc7 12. a5 Bd7 13. Qf3 Rad8 14. Nb3 e5 15. Nxc5 dxc5 16. fxe5 Qxe5 17. Bf4 Qe6 18. e5 Bc6 19. exf6 Bxf3 20. fxe7 Bxg2+ 21. Kxg2 Qxe7 22. Rae1 Qh4 23. Ne4 Rfe8 24. h3 Qh5 25. Kh2 Qd5 26. b3 Qd4 27. Be3 Qe5+ 28. Bf4 Qd4 1/2-1/2

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.05.24"]
[Round "7"]
[White "Jarmula, Lukasz"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "2013"]
[BlackElo "2126"]
[PlyCount "52"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 c5 4. d5 d6 5. e4 Bg7 6. Ne2 0-0 7. Nec3 e6 8. Be3 exd5 9. cxd5 Re8 10. Nd2 Nbd7 11. Nc4 Ne5 12. Nxe5 Rxe5 13. Qd2 Nh5 14. g4 Nf6 15. Bf4 Re8 16. Bg5 h6 17. Bf4 Bxg4 18. Be2 Bh5 19. 0-0-0 Kh7 20. h4 a6 21. Qe1 b5 22. Qf2 Qe7 23. Bd3 Nd7 24. Rdg1 Ne5 25. Be2 Nc4 26. Bxc4 bxc4 0-1

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.05.18"]
[Round "6"]
[White "Zaczek, Jonathon"]
[Black "Zurkowski, Andrzej"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2126"]
[BlackElo "2021"]
[PlyCount "66"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb6 5. Nc3 e5 6. Be3 Bb4 7. d5 0-0 8. Qb3 Bxc3+ 9. Qxc3 c6 10. 0-0-0 cxd5 11. Qxe5 N8d7 12. Qd4 dxc4 13. Kb1 Qc7 14. Nf3 Nf6 15. Bf4 Bf5+ 16. Ka1 Qc8 17. Ne5 Rd8 18. Qxd8+ Qxd8 19. Rxd8+ Rxd8 20. Be2 Nfd5 21. Bg3 Nb4 22. a3 Nc2+ 23. Ka2 Be6 24. Kb1 Nd4 25. Rd1 Bf5+ 26. Ka2 Bc2 27. Rd2 Bb3+ 28. Kb1 Ne6 29. Rxd8+ Nxd8 30. Bf3 Ba4 31. Be2 Bb3 32. Bf3 Ba4 33. Be2 Bb3 1/2-1/2

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.05.04"]
[Round "4"]
[White "Zaczek, Jonathon"]
[Black "Guerrero Rodriguez, Alejandra"]
[Result "1/2-1/2"]
[ECO "B75"]
[WhiteElo "2126"]
[BlackElo "2057"]
[PlyCount "181"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Bc4 d6 8. f3 Qb6 9. Bb5 Qc7 10. Qd2 a6 11. Ba4 0-0 12. 0-0-0 Nxd4 13. Bxd4 Be6 14. Bb3 b5 15. Rhe1 Bc4 16. Kb1 e5 17. Be3 Rfd8 18. Bg5 b4 19. Bxf6 Bxf6 20. Bxc4 bxc3 21. Qxc3 Rab8 22. b3 Rdc8 23. Ka1 Be7 24. Rd5 Rb5 25. Red1 Rxd5 26. Rxd5 Qb6 27. Qd2 Qg1+ 28. Kb2 Rc6 29. h3 Qb6 30. Qe2 Bg5 31. Rd1 Be3 32. c3 a5 33. a4 Bc5 34. Qd3 Rc7 35. Qd5 Qb7 36. Qxb7 Rxb7 37. Rb1 Kf8 38. Kc2 Ke7 39. Bb5 Ra7 40. Kd3 Bb6 41. Bc6 Rc7 42. Bd5 f5 43. b4 h6 44. c4 f4 45. bxa5 Bxa5 46. Rb8 Ra7 47. Rh8 Kf6 48. Bc6 h5 49. Bb5 Bb6 50. Ke2 Bc5 51. Rc8 Ke6 52. Rc6 Bb4 53. Rc8 Bc5 54. Rg8 Kf6 55. Be8 Rg7 56. Rh8 Rb7 57. Bb5 Ra7 58. Kd3 Bb4 59. Kc2 Bc5 60. Kb3 Bd4 61. Rb8 Bc5 62. Kc2 Bd4 63. Kd3 Bc5 64. Ke2 Bd4 65. Kf1 Bc5 66. Ke2 Bd4 67. Kd1 Bc5 68. Kc2 Bd4 69. Kb3 Bc5 70. Bc6 Ke7 71. Ra8 Rxa8 72. Bxa8 Kd7 73. a5 Kc7 74. Ka4 h4 75. Kb5 Ba7 76. Bd5 Bc5 77. Ba8 Ba7 78. c5 Bxc5 79. Kc4 Kb8 80. Bc6 Ka7 81. Bb5 Ba3 82. Kd5 Bc5 83. Kc6 Bb4 84. a6 Bc5 85. Bc4 Bb4 86. Kc7 Bc5 87. Kd7 Bb4 88. Ke6 Bc5 89. Kf6 Bb4 90. Kxg6 Bc5 91. Kf7 1/2-1/2

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.05.02"]
[Round "5"]
[White "Choroszej, Aleksander"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2070"]
[BlackElo "2126"]
[PlyCount "53"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 Nd7 10. 0-0 Nf6 11. Qd3 b6 12. Bf4 cxd4 13. cxd4 Bb7 14. Nd2 Qd7 15. Bf3 Qa4 16. Rfd1 Qxa2 17. Nb3 Rfc8 18. Nc5 bxc5 19. Rxb7 cxd4 20. Rxe7 Rd8 21. h3 Rac8 22. Be5 Re8 23. Rxe8+ Rxe8 24. Qxd4 Nh5 25. Bxg7 Nxg7 26. Ra1 Ne6 27. Qc3 1-0

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.04.27"]
[Round "3"]
[White "Zaczek, Jonathon"]
[Black "Pieczonka, Marcin"]
[Result "1/2-1/2"]
[ECO "B77"]
[WhiteElo "2126"]
[BlackElo "2110"]
[PlyCount "59"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. f3 Na5 10. Qd2 Nxb3 11. axb3 Bd7 12. g4 h5 13. g5 Ne8 14. f4 Nc7 15. f5 a6 16. 0-0 Rc8 17. Rf2 Be5 18. Raf1 Bg7 19. Nde2 d5 20. fxg6 fxg6 21. Rxf8+ Bxf8 22. exd5 Bf5 23. Nd4 Bh3 24. Qd3 Bxf1 25. Qxg6+ Bg7 26. Nf5 Qf8 27. Bd4 Bh3 28. Nh6+ Kh8 29. Nf7+ Kg8 30. Nh6+ 1/2-1/2

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.04.19"]
[Round "2"]
[White "Cajbel, Maciej"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2222"]
[BlackElo "2126"]
[PlyCount "100"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 e6 4. Nf3 Nc6 5. Bc4 Nf6 6. d3 a6 7. a4 d5 8. Ba2 dxe4 9. dxe4 Qxd1+ 10. Kxd1 Nb4 11. Bb3 b6 12. e5 Nfd5 13. Ne4 Bb7 14. Nf2 Rd8 15. Ke2 c4 16. Bxc4 Nxc2 17. Rb1 Ndb4 18. Rd1 Rxd1 19. Nxd1 Be4 20. Nc3 Bb7 21. Bd2 Bc5 22. Rd1 Ke7 23. Bc1 Nc6 24. Bd3 N2d4+ 25. Nxd4 Nxd4+ 26. Kf1 Nb3 27. Ne4 Bxe4 28. Bxe4 Rd8 29. Ke2 Rxd1 30. Kxd1 Nxc1 31. Kxc1 Be3+ 32. Kc2 Bxf4 33. h4 h5 34. Bf3 g6 35. g4 hxg4 36. Bxg4 Bxe5 37. h5 gxh5 38. Bxh5 a5 39. b3 Bd6 40. Kd3 f5 41. Kd4 Bb4 42. Be2 Kd6 43. Bh5 e5+ 44. Ke3 e4 45. Bg6 Ke5 46. Bh5 f4+ 47. Kf2 f3 48. Ke3 Bc5+ 49. Kd2 Kf4 50. Ke1 Bb4+ 0-1

[Event "Warsaw YMCA Spring-A 107th"]
[Site "Warsaw"]
[Date "2012.04.13"]
[Round "1"]
[White "Zaczek, Jonathon"]
[Black "Goslawski, Michal"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2126"]
[BlackElo "2067"]
[PlyCount "51"]
[EventDate "2012.04.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2 Nbc6 11. f4 Bd7 12. Rb1 0-0-0 13. Qd3 Na5 14. cxd4 Nc4 15. Bd2 Kb8 16. h4 Nf5 17. h5 Rc8 18. Rh3 Nxd2 19. Qxd2 Qxc2 20. Qb4 Bc6 21. h6 Qc4 22. Qd2 Qa4 23. h7 Rh8 24. g4 Ne7 25. Rb4 Qa6 26. Nc1 1-0

[Event "Mazowiec-chT 1112"]
[Site "Poland"]
[Date "2012.02.26"]
[Round "9.24"]
[White "Borowicz, Przemyslaw"]
[Black "Zaczek, Jonathon"]
[Result "1-0"]
[ECO "D87"]
[WhiteElo "1973"]
[BlackElo "2126"]
[PlyCount "105"]
[EventDate "2012.01.08"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 Qc7 11. Rc1 Rd8 12. Qa4 b6 13. dxc5 Bb7 14. cxb6 axb6 15. Bxf7+ Kxf7 16. Qb3+ e6 17. Bxb6 Qe7 18. Bxd8 Nxd8 19. Qc2 Qa3 20. Rfd1 Bc6 21. Qd2 Qxa2 22. Qf4+ Kg8 23. Rd2 Qa6 24. Rcd1 Nf7 25. Qg4 e5 26. Ng3 Qc4 27. h4 Rf8 28. h5 Nh6 29. Qe2 Qc5 30. hxg6 hxg6 31. Rd6 Be8 32. Qd2 Ng4 33. Nh1 Nf6 34. Qa2+ Bf7 35. Qe2 Nh5 36. g3 Nf6 37. Kg2 Qa5 38. Qd3 Qa4 39. f3 Bc4 40. Qe3 Bf7 41. Nf2 Qa3 42. R1d2 Qa1 43. Rd1 Qa2 44. R6d2 Qa3 45. Nh3 Qa5 46. Rh1 Rc8 47. Rc2 Bb3 48. Rcc1 Rd8 49. Ra1 Qb5 50. Nf2 Qd7 51. Ra7 Qd2 52. Qb6 Qxc3 53. Qxd8+ 1-0

[Event "Mazowiec-chT 1112"]
[Site "Poland"]
[Date "2012.02.26"]
[Round "10.12"]
[White "Zaczek, Jonathon"]
[Black "Skawinski, Arkadiusz"]
[Result "1-0"]
[ECO "C13"]
[WhiteElo "2126"]
[BlackElo "2300"]
[PlyCount "81"]
[EventDate "2012.01.08"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 a6 8. Qd2 f5 9. Nc5 Bxc5 10. dxc5 Qxd2+ 11. Nxd2 Bd7 12. Nc4 Bc6 13. Ne5 Ke7 14. 0-0-0 Nd7 15. Nxc6+ bxc6 16. Rd4 Rhd8 17. Be2 a5 18. Rhd1 Nxc5 19. Bf3 Rxd4 20. Rxd4 e5 21. Rc4 Kd6 22. Rh4 Rg8 23. g3 Rg7 24. Rh6+ Ne6 25. Rf6 f4 26. gxf4 exf4 27. Rh6 Rg1+ 28. Kd2 Rf1 29. Be4 Rxf2+ 30. Ke1 f5 31. Bxf5 Rg2 32. Rxe6+ Kc5 33. Re2 Rg1+ 34. Kf2 Ra1 35. Re5+ Kb6 36. b3 Rxa2 37. Bxh7 c5 38. h4 c4 39. bxc4 Ra1 40. Re1 Ra3 41. Bd3 1-0

[Event "Mazowiec-chT 1112"]
[Site "Poland"]
[Date "2012.02.19"]
[Round "8.6"]
[White "Toczek, Grzegorz"]
[Black "Zaczek, Jonathon"]
[Result "0-1"]
[ECO "D76"]
[WhiteElo "2290"]
[BlackElo "2126"]
[PlyCount "54"]
[EventDate "2012.01.08"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d5 6. cxd5 Nxd5 7. 0-0 Nc6 8. e4 Nb6 9. d5 Na5 10. Nc3 c6 11. Nd4 e6 12. Nb3 Nxb3 13. axb3 cxd5 14. exd5 exd5 15. Nxd5 Be6 16. Nxb6 Qxb6 17. Ra3 Rfd8 18. Qe2 Bxb3 19. Bd2 a5 20. Be3 Qb4 21. Rc1 a4 22. Raa1 Be6 23. Rc3 Bxc3 24. bxc3 Qxc3 25. Rc1 Qb3 26. Bh6 Rac8 27. Re1 a3 0-1

[Event "Mazowiec-chT 1112"]
[Site "Poland"]
[Date "2012.02.19"]
[Round "7.13"]
[White "Zaczek, Jonathon"]
[Black "Choroszej, Aleksander"]
[Result "0-1"]
[ECO "B09"]
[WhiteElo "2126"]
[BlackElo "2070"]
[PlyCount "120"]
[EventDate "2012.01.08"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. f4 d6 4. Nf3 Nf6 5. Nc3 0-0 6. e5 Nfd7 7. h4 c5 8. h5 cxd4 9. Qxd4 dxe5 10. Qf2 e4 11. Nxe4 Nf6 12. Nxf6+ exf6 13. Bd3 Re8+ 14. Kf1 Nc6 15. Bd2 Bg4 16. hxg6 hxg6 17. f5 Bxf3 18. Qxf3 Ne5 19. Qh3 Nxd3 20. cxd3 Qd4 21. Bc3 Qf4+ 22. Kg1 Qe3+ 23. Qxe3 Rxe3 24. fxg6 fxg6 25. Rd1 Rd8 26. Rh3 Rxh3 27. gxh3 Kf7 28. Kf2 Rd5 29. d4 f5 30. Ke3 b5 31. a4 a6 32. axb5 axb5 33. Ra1 b4 34. Ra7+ Kg8 35. Ra8+ Kh7 36. Bxb4 Bxd4+ 37. Kf4 Kh6 38. Bf8+ Kh5 39. b4 Re5 40. Bd6 g5+ 41. Kf3 Re3+ 42. Kg2 f4 43. Rf8 Rg3+ 44. Kh2 Rf3 45. Bc5 Bxc5 46. Rh8+ Kg6 47. bxc5 Rf2+ 48. Kg1 Rc2 49. Rc8 Kf5 50. c6 Ke4 51. Rg8 Kf3 52. Rxg5 Rxc6 53. Ra5 Rc1+ 54. Kh2 Re1 55. Ra4 Re2+ 56. Kg1 Kg3 57. Kf1 Rf2+ 58. Ke1 Rh2 59. Kf1 Rh1+ 60. Ke2 f3+ 0-1

