[Event "Warsaw Najdorf Memorial op-B"]
[Site "Warsaw"]
[Date "2023.07.19"]
[Round "9"]
[White "Zeissel, Andrzej"]
[Black "Pietrzak, Wojciech"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1813"]
[BlackElo "1764"]
[PlyCount "97"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Qe2 c5 3. Nf3 Nc6 4. g3 d5 5. exd5 Qxd5 6. c3 Nf6 7. Bg2 Be7 8. 0-0 Qh5 9. d4 cxd4 10. cxd4 0-0 11. Nc3 Rd8 12. Rd1 Nb4 13. h3 Qa5 14. Bd2 Qb6 15. Na4 Qc6 16. Nc5 Nbd5 17. Rac1 Qe8 18. Ne5 a5 19. g4 Qf8 20. g5 Ne8 21. Be4 g6 22. Ng4 b6 23. Nd3 Ba6 24. Qf3 Ra7 25. Nh6+ Kg7 26. Ne5 f5 27. Nc6 Rad7 28. Bxd5 Rxd5 29. Nxd8 Bxd8 30. Bf4 Qb4 31. Qc3 Qe7 32. h4 Bb7 33. Qa3 Qxa3 34. bxa3 Rd7 35. Rd2 Nd6 36. Be5+ Kf8 37. Rdc2 Nb5 38. Rc4 Nxa3 39. Rc6 Bxc6 40. Rxc6 Nb5 41. Rxe6 Nxd4 42. Bd6+ Be7 43. Bxe7+ Rxe7 44. Rxb6 Re6 45. Rb7 Re7 46. Rb6 Re6 47. Rb1 Re4 48. Rb8+ Re8 49. Rb6 1/2-1/2

[Event "Warsaw Najdorf Memorial op-B"]
[Site "Warsaw"]
[Date "2023.07.18"]
[Round "8"]
[White "Pietrzak, Wojciech"]
[Black "Moszczenski, Milosz"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "1764"]
[BlackElo "1783"]
[PlyCount "99"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Bd3 0-0 8. h3 Nc6 9. 0-0 Nb4 10. Be2 Bf5 11. a3 Nc6 12. Be3 dxc4 13. Bxc4 Rc8 14. Ba2 Ne4 15. d5 Nxc3 16. bxc3 Ne5 17. Nxe5 Bxe5 18. Bd4 Qd6 19. Bxe5 Qxe5 20. Re1 Qd6 21. Qb3 Rc7 22. c4 b6 23. Re3 Bc8 24. Rae1 Re8 25. Qd1 Ba6 26. Qa4 b5 27. cxb5 Bc8 28. Qd1 Bf5 29. Bb3 Rec8 30. a4 Qb4 31. Qf3 Rc3 32. Bd1 h5 33. Qe2 Bd3 34. Qd2 Qc4 35. Rxe7 Qxd5 36. Re8+ Kh7 37. Rxc8 Rxc8 38. Be2 Be4 39. Qxd5 Bxd5 40. a5 Rc2 41. Rd1 Be6 42. Bd3 Ra2 43. a6 Kg7 44. Be4 Rb2 45. Rb1 Rxb1+ 46. Bxb1 Bc4 47. b6 axb6 48. a7 Bd5 49. Bd3 Kf8 50. Be2 1-0

[Event "Warsaw Najdorf Memorial op-B"]
[Site "Warsaw"]
[Date "2023.07.13"]
[Round "3"]
[White "Haliniak, Wojciech"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1901"]
[BlackElo "1764"]
[PlyCount "105"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Qe2 c5 3. Nf3 Nc6 4. g3 d6 5. Bg2 Nf6 6. 0-0 Be7 7. c3 e5 8. Na3 Bg4 9. Nc2 Qd7 10. Rd1 Nxe4 11. d4 cxd4 12. Qxe4 d5 13. Qe1 Qf5 14. Nxe5 Qxe5 15. Qxe5 Nxe5 16. Rxd4 0-0-0 17. Rxd5 Nf3+ 18. Bxf3 Bxf3 19. Rxd8+ Rxd8 20. Be3 a6 21. Nd4 Bd5 22. Nf5 Bf8 23. Bd4 g6 24. Ne3 Be6 25. f4 f5 26. b3 Kd7 27. Kf2 Kc6 28. Ke2 Bd5 29. Nxd5 Kxd5 30. Rd1 Re8+ 31. Be5+ Kc6 32. Kf3 g5 33. h3 h5 34. c4 Be7 35. fxg5 Bxg5 36. Rd6+ Kc5 37. Rd5+ Kc6 38. Bf4 Bxf4 39. Kxf4 h4 40. gxh4 Re4+ 41. Kxf5 Rxh4 42. Rd3 Rh5+ 43. Kg4 Ra5 44. Rd2 b5 45. cxb5+ axb5 46. h4 Ra8 47. h5 Rg8+ 48. Kf5 Rh8 49. Rh2 Kc5 50. Kg6 Kb4 51. Kg7 Ra8 52. h6 Ka3 53. b4 1-0

[Event "Warsaw Najdorf Memorial op-B"]
[Site "Warsaw"]
[Date "2023.07.12"]
[Round "2"]
[White "Kulpa, Zuzanna"]
[Black "Pietrzak, Wojciech"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "1911"]
[BlackElo "1764"]
[PlyCount "123"]
[EventDate "2023.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 g6 6. Nc3 axb5 7. Bxb5 Ba6 8. a4 Bg7 9. Bd2 0-0 10. e4 d6 11. Nf3 Bxb5 12. axb5 Nbd7 13. 0-0 Qb6 14. Qe2 Ng4 15. h3 Nge5 16. Nxe5 Bxe5 17. f4 Bd4+ 18. Kh2 Rac8 19. Ra6 Qb8 20. Be3 f5 21. exf5 Rxf5 22. Bxd4 cxd4 23. Qe6+ Rf7 24. Qxd7 dxc3 25. bxc3 Rc7 26. Qe6 Qxb5 27. Ra8+ Kg7 28. Rf3 Qb7 29. Rh8 Kxh8 30. Qxf7 Qc8 31. f5 Qg8 32. fxg6 hxg6 33. Qf4 Qg7 34. Re3 Kg8 35. Qa4 Qf6 36. Qe8+ Kg7 37. Rf3 Qe5+ 38. Kg1 Kh6 39. Qf8+ Qg7 40. Qf4+ Kh7 41. Qe4 Kh8 42. Rg3 Kh7 43. c4 Qa1+ 44. Kh2 Qf6 45. h4 Kh6 46. Qe3+ Kh7 47. Qd3 Kh6 48. Kh3 e5 49. Qe4 Qf5+ 50. Rg4 Rc8 51. Qe3+ Kh7 52. Qa7+ Kh6 53. Qe3+ Kh7 54. Kg3 Qf7 55. Qb6 Qd7 56. Qb1 Qf5 57. Qb7+ Kh6 58. Qe7 Qd3+ 59. Kh2 Rxc4 60. Qg5+ Kh7 61. Rg3 Qf5 62. Qe7+ 1/2-1/2

[Event "Warsaw Maciei Memorial"]
[Site "Warsaw"]
[Date "2023.07.10"]
[Round "6"]
[White "Pietrzak, Wojciech"]
[Black "Zubova, Mariya"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1764"]
[BlackElo "2163"]
[PlyCount "60"]
[EventDate "2023.07.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. e3 e6 4. c3 Be7 5. Nd2 h6 6. Bh4 Nbd7 7. f4 c5 8. Bd3 b6 9. Ngf3 Bb7 10. 0-0 Ne4 11. Bxe7 Qxe7 12. Ne5 0-0-0 13. a4 a5 14. Nxe4 dxe4 15. Bb5 Nxe5 16. fxe5 f6 17. Qe2 fxe5 18. b4 exd4 19. cxd4 cxd4 20. bxa5 d3 21. Qg4 bxa5 22. Rac1+ Kb8 23. Qg3+ e5 24. Rf5 Rc8 25. Rxc8+ Rxc8 26. Rxe5 Rc1+ 27. Kf2 Qc7 28. Re8+ Ka7 29. Qh4 d2 30. Be2 Qf7+ 0-1

[Event "Warsaw Maciei Memorial"]
[Site "Warsaw"]
[Date "2023.07.10"]
[Round "8"]
[White "Redzisz, Michal"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2269"]
[BlackElo "1764"]
[PlyCount "59"]
[EventDate "2023.07.10"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 g6 5. Qc2 Bg7 6. e4 d6 7. cxb5 a6 8. Nc3 0-0 9. a4 axb5 10. Bxb5 Ba6 11. 0-0 Bxb5 12. Nxb5 Na6 13. Bd2 Nd7 14. Bc3 f6 15. Qe2 Ne5 16. Nd2 Nc7 17. f4 Nxb5 18. Qxb5 Nf7 19. Qe2 Qc7 20. Nc4 Rfb8 21. a5 Rb3 22. Nb6 Rb8 23. Qc4 Rxc3 24. bxc3 f5 25. exf5 gxf5 26. Rfb1 Nh6 27. h3 Kh8 28. a6 Rxb6 29. Rxb6 Qxb6 30. a7 1-0

[Event "Krakow Malopolski op"]
[Site "Krakow"]
[Date "2022.06.18"]
[Round "5"]
[White "Brylski, Pawel"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "B71"]
[WhiteElo "1958"]
[BlackElo "1773"]
[PlyCount "72"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nfd7 7. Bc4 Bg7 8. Be3 0-0 9. Bb3 Nc6 10. 0-0 Nc5 11. Nxc6 bxc6 12. Bxc5 dxc5 13. Qe2 Qa5 14. e5 Rb8 15. Ne4 c4 16. Qxc4 Ba6 17. Qxc6 Bxf1 18. Rxf1 Rfc8 19. Qd7 Qb6+ 20. Kh1 Rc7 21. Qh3 h6 22. f5 Rd8 23. Qg3 gxf5 24. Nf6+ Kh8 25. Qf4 exf6 26. exf6 Bxf6 27. Qxh6+ Kg8 28. Qg6+ Bg7 29. Qxf5 Qf6 30. Qb5 a6 31. Qe2 Rd2 32. Qe1 Qg5 33. Qe4 Rcd7 34. h3 Be5 35. Qa8+ Kg7 36. g4 Rh2+ 0-1

[Event "Krakow Malopolski op"]
[Site "Krakow"]
[Date "2022.06.18"]
[Round "6"]
[White "Pietrzak, Wojciech"]
[Black "Szlosarczyk, Hubert"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1773"]
[BlackElo "1654"]
[PlyCount "85"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nd7 3. e3 Ngf6 4. Nd2 e6 5. Bd3 Be7 6. c3 0-0 7. f4 c5 8. Ngf3 b6 9. 0-0 Bb7 10. Ne5 Ne4 11. Bxe7 Qxe7 12. Ndf3 Nxe5 13. Nxe5 f6 14. Nf3 Rac8 15. Nd2 Nxd2 16. Qxd2 c4 17. Bc2 f5 18. Rf3 Rf6 19. Raf1 Rg6 20. Rh3 a5 21. Kh1 b5 22. Rg1 Rg4 23. Bd1 Rh4 24. Rxh4 Qxh4 25. Bf3 Qe7 26. a3 Rf8 27. g4 g6 28. Qg2 Qf7 29. h4 Kh8 30. h5 Rg8 31. hxg6 hxg6 32. gxf5 Qh7+ 33. Qh2 Qxh2+ 34. Kxh2 gxf5 35. Rxg8+ Kxg8 36. Kh3 Kg7 37. Kh4 Kh6 38. Bh5 Bc6 39. Bf7 Bd7 40. Bh5 a4 41. Bf7 Kg7 42. Bh5 Kh6 43. Bf7 1-0

[Event "Krakow Malopolski op"]
[Site "Krakow"]
[Date "2022.06.17"]
[Round "3"]
[White "Czarnecka, Lidia"]
[Black "Pietrzak, Wojciech"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "1940"]
[BlackElo "1773"]
[PlyCount "93"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 f6 6. exf6 Nxf6 7. Bd3 Qc7 8. 0-0 Bd7 9. Na3 a6 10. Re1 c4 11. Bb1 0-0-0 12. Ne5 Nxe5 13. dxe5 Ne4 14. Bxe4 dxe4 15. Qd4 Bc6 16. Qxc4 Qxe5 17. Be3 Bd6 18. g3 Qf5 19. Nc2 Qd5 20. Qxd5 exd5 21. Rad1 Rd7 22. Rd2 Bc7 23. Red1 h6 24. Nd4 Be5 25. Ne6 Re8 26. Nc5 Rf7 27. Kg2 Rf3 28. Nb3 g5 29. Na5 Rg8 30. Nxc6 bxc6 31. c4 dxc4 32. Rc1 c3 33. bxc3 Bf4 34. Bxf4 gxf4 35. Rd6 fxg3 36. hxg3 Rgf8 37. Rc2 R3f6 38. Rd4 Re8 39. Re2 Rfe6 40. Ra4 c5 41. g4 Kb7 42. Kg3 Kb6 43. Rb2+ Kc7 44. Re2 Kb6 45. Rb2+ Kc7 46. Rc4 Kc6 47. Ra4 1/2-1/2

[Event "Krakow Malopolski op"]
[Site "Krakow"]
[Date "2022.06.16"]
[Round "1"]
[White "Kuciel, Wladyslaw"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "1930"]
[BlackElo "1773"]
[PlyCount "64"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 g6 5. e4 Nxe4 6. Bd3 Qa5+ 7. Nbd2 Nd6 8. 0-0 Bg7 9. Re1 bxc4 10. Nxc4 Nxc4 11. Bxc4 0-0 12. Rxe7 d6 13. h3 Nd7 14. Bf4 Qd8 15. Re2 Nb6 16. Bb5 Rb8 17. a4 Bb7 18. Bc6 Ba6 19. Rc2 Nc4 20. Qd3 Rb6 21. Rxc4 Bxc4 22. Qxc4 Rb4 23. Qc1 Bxb2 24. Bg5 f6 25. Qe3 fxg5 26. Re1 Rbf4 27. Rb1 Qf6 28. Nxg5 Be5 29. Ne6 Rxf2 30. Nxf8 Bd4 31. Qe6+ Qxe6 32. dxe6 Rb2+ 0-1

[Event "Krakow Malopolski op"]
[Site "Krakow"]
[Date "2022.06.16"]
[Round "2"]
[White "Pietrzak, Wojciech"]
[Black "Koziej, Maciej"]
[Result "0-1"]
[ECO "D03"]
[WhiteElo "1773"]
[BlackElo "1953"]
[PlyCount "90"]
[EventDate "2022.06.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c6 3. Nd2 d5 4. e3 Bf5 5. Ngf3 Qb6 6. Nh4 Be6 7. Bxf6 exf6 8. Bd3 Qxb2 9. 0-0 Nd7 10. Qe2 Qa3 11. f4 Nb6 12. Rab1 Be7 13. Rb3 Qd6 14. f5 Bd7 15. c4 dxc4 16. Bxc4 Nxc4 17. Nxc4 Qd5 18. Rxb7 c5 19. Rb3 g5 20. fxg6 hxg6 21. Nf3 Qh5 22. Qb2 0-0 23. Rb7 Rfd8 24. Ncd2 cxd4 25. exd4 Qd5 26. Re1 Bf8 27. Ne4 Bg7 28. Nc3 Qf5 29. d5 Qd3 30. Qb3 f5 31. Ne2 Qa6 32. Nf4 Ba4 33. Qb1 Bh6 34. Ne6 fxe6 35. Rxe6 Qxe6 36. dxe6 Rd1+ 37. Qxd1 Bxd1 38. Ne5 Re8 39. e7 Bg5 40. Nxg6 Bh5 41. Ne5 Rxe7 42. Rb8+ Kg7 43. Nc6 Rc7 44. Nb4 Be3+ 45. Kf1 Rc1# 0-1

[Event "Polanica Zdroj op-D 56th"]
[Site "Polanica Zdroj"]
[Date "2020.08.17"]
[Round "3"]
[White "Pietrzak, Wojciech"]
[Black "Bialik, Nikodem"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1773"]
[BlackElo "1552"]
[PlyCount "60"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 e6 3. Nf3 Nf6 4. e4 d5 5. cxd5 exd5 6. d3 dxe4 7. Nxe4 Be7 8. Be2 0-0 9. b3 Nc6 10. 0-0 b6 11. Bb2 Bb7 12. h3 Nb4 13. Re1 Nxe4 14. dxe4 Bxe4 15. Qxd8 Bxd8 16. Red1 h6 17. Ne5 Bf6 18. f3 Bf5 19. g4 Bxe5 20. Bxe5 Rfe8 21. f4 f6 22. gxf5 fxe5 23. Bc4+ Kh8 24. Be6 exf4 25. Rd2 Rad8 26. Bd7 Re3 27. Rad1 Rxh3 28. Kg2 Re3 29. Be6 Red3 30. Bc4 Rxd2+ 0-1

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.19"]
[Round "9"]
[White "Pietrzak, Wojciech"]
[Black "Spicak, Krzysztof"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1802"]
[BlackElo "1940"]
[PlyCount "104"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Be3 Nf6 5. Be2 h5 6. h3 c6 7. Qd2 b5 8. Bf3 b4 9. Nce2 a5 10. Nc1 Qc7 11. Nd3 Nbd7 12. Ne2 Bb7 13. Bf4 e5 14. dxe5 dxe5 15. Bh2 c5 16. 0-0 c4 17. Ne1 Bh6 18. Qd4 Rc8 19. Qd1 Rd8 20. Ng3 Nc5 21. Qe2 h4 22. Nf5 gxf5 23. exf5 Nce4 24. Bxe4 Rd2 25. Bc6+ Qxc6 26. Qxe5+ Kf8 27. Bf4 Rd5 28. Bxh6+ Rxh6 29. Qe3 Rh5 30. Nf3 Rdxf5 31. Rfd1 Nd5 32. Qa7 Rxf3 33. gxf3 Rg5+ 34. Kf1 Qc8 35. Rd4 Qxh3+ 36. Ke2 Re5+ 37. Kd2 c3+ 38. bxc3 bxc3+ 39. Kd3 Qxf3+ 40. Kc4 Re8 41. Qc5+ Ne7 42. Re1 Bd5+ 43. Rxd5 Qxd5+ 44. Qxd5 Nxd5 45. Rh1 Re2 46. Rxh4 Rxc2 47. Kxd5 Rd2+ 48. Kc5 Rxa2 49. Rc4 c2 50. f4 Ke7 51. Kd5 Kf6 52. Ke4 Ra4 0-1

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.18"]
[Round "7"]
[White "Potocki, Karol"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "1862"]
[BlackElo "1802"]
[PlyCount "76"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. dxc5 Bxc5 6. Ngf3 Nf6 7. Bc4 Qd6 8. 0-0 0-0 9. Qe2 Nc6 10. Nb3 Bb6 11. Bg5 Bd8 12. Rad1 Nd5 13. Bxd8 Rxd8 14. Rfe1 h6 15. Qe4 Qf8 16. Bxd5 exd5 17. Rxd5 Be6 18. Rb5 Bxb3 19. Rxb3 Rd7 20. h3 Qc5 21. Rbe3 Rad8 22. c3 Ne7 23. Nd4 Nd5 24. Qf5 Qc8 25. Rg3 Re7 26. Rxe7 Nxe7 27. Qa5 a6 28. h4 Rd5 29. Qb6 Ng6 30. Qb3 Qd7 31. h5 Nf4 32. Qb6 Kh8 33. Rf3 Qg4 34. Rxf4 Qxf4 35. Qxb7 Qc1+ 36. Kh2 Rxh5+ 37. Kg3 Rg5+ 38. Kh3 Qh1# 0-1

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.18"]
[Round "8"]
[White "Trybus, Daniel"]
[Black "Pietrzak, Wojciech"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "1860"]
[BlackElo "1802"]
[PlyCount "71"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. a3 Bxc3+ 7. bxc3 Ne5 8. e4 d6 9. f3 0-0 10. Bg5 h6 11. Be3 Qe7 12. Be2 a6 13. 0-0 c5 14. Nb3 Be6 15. Nd2 Rfe8 16. Rb1 Rab8 17. Qa4 Qc7 18. Rb2 Bd7 19. Qc2 Bc6 20. Rfb1 Ned7 21. Nf1 Re6 22. Bf2 Rbe8 23. Ne3 Qa5 24. Nd5 Nxd5 25. cxd5 Bxd5 26. exd5 Rxe2 27. Qxe2 Rxe2 28. Rxe2 b5 29. Bg3 Qxc3 30. Rd1 Qf6 31. Re8+ Kh7 32. Ra8 c4 33. Rxa6 Ne5 34. Rb6 c3 35. Bxe5 c2 36. Rf1 1/2-1/2

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.17"]
[Round "6"]
[White "Pietrzak, Wojciech"]
[Black "Podgorski, Maciej"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1802"]
[BlackElo "1835"]
[PlyCount "52"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 e5 5. d3 Be7 6. h3 Nc6 7. Nbd2 0-0 8. Qc2 Be6 9. Nf1 b5 10. g4 d5 11. Ng3 d4 12. g5 Nd7 13. h4 dxc3 14. bxc3 b4 15. Nf5 bxc3 16. h5 Nd4 17. N3xd4 exd4 18. g6 fxg6 19. hxg6 hxg6 20. Nh6+ gxh6 21. Rxh6 Kg7 22. Bh5 gxh5 23. Rxe6 Bh4 24. Bh6+ Kh7 25. Qe2 Rxf2 26. Qxh5 Rf5+ 0-1

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.16"]
[Round "5"]
[White "Liberadzki, Slawomir"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "1959"]
[BlackElo "1802"]
[PlyCount "69"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 d5 7. e3 c6 8. b3 Bd7 9. Bb2 Na6 10. Qc2 Be8 11. a3 Nd7 12. Ne2 Bf6 13. d4 g5 14. Ne5 Bg6 15. f4 Nxe5 16. dxe5 Be7 17. b4 Rc8 18. Qb3 b5 19. cxb5 cxb5 20. Nd4 Qd7 21. Nxe6 Bf7 22. Nxf8 Bxf8 23. Bd4 g4 24. Rfc1 Rc4 25. Bf1 Nb8 26. Rd1 a6 27. Qb2 Qc6 28. Bxc4 dxc4 29. Ba7 c3 30. Qg2 Qc7 31. Bxb8 Qxb8 32. Qc6 Bc4 33. Rd7 a5 34. Qf6 Qa8 35. Rd8 1-0

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.15"]
[Round "4"]
[White "Pietrzak, Wojciech"]
[Black "Dwilewicz, Katarzyna"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1802"]
[BlackElo "2070"]
[PlyCount "81"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 Nf6 6. Bd3 Be7 7. 0-0 0-0 8. h3 Nc6 9. Be3 b6 10. Re1 h6 11. Nbd2 Bd6 12. a3 Re8 13. Bb5 Bd7 14. dxc5 bxc5 15. b4 d4 16. Nc4 dxe3 17. Nxd6 exf2+ 18. Kxf2 Rxe1 19. Qxe1 cxb4 20. axb4 Nxb4 21. cxb4 Qb6+ 22. Qe3 Qxd6 23. Ra6 Qxb4 24. Bxd7 Nxd7 25. Rxa7 Qb2+ 26. Kg1 Rxa7 27. Qxa7 Qb6+ 28. Qxb6 Nxb6 29. g4 Kf8 30. Kg2 Ke7 31. Nd4 g6 32. Kf3 Kf6 33. Ke4 Nc4 34. h4 Ne5 35. g5+ hxg5 36. hxg5+ Kxg5 37. Kxe5 f5 38. Ne6+ Kg4 39. Kf6 f4 40. Nxf4 Kxf4 41. Kxg6 1/2-1/2

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.14"]
[Round "3"]
[White "Misiuk, Andrzej"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "2215"]
[BlackElo "1802"]
[PlyCount "24"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. cxd5 exd5 5. Bg2 c6 6. d4 Be7 7. Nf3 0-0 8. Rf1 Re8 9. e3 c5 10. Qb3 Nc6 11. Ne5 cxd4 12. Nxc6 dxc3 1-0

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.13"]
[Round "2"]
[White "Pietrzak, Wojciech"]
[Black "Goslawski, Michal"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "1802"]
[BlackElo "2099"]
[PlyCount "68"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. g3 d5 2. c4 dxc4 3. Nf3 Nf6 4. Bg2 e6 5. Na3 Bxa3 6. Qa4+ Bd7 7. Qxa3 Bc6 8. Qb4 b5 9. a4 Nd5 10. Qc5 Qd6 11. Qxd6 cxd6 12. Nd4 b4 13. b3 cxb3 14. Bb2 Kd7 15. Nxc6 Nxc6 16. Bxg7 Rhc8 17. 0-0 Na5 18. e4 Ne7 19. Rfb1 Rc2 20. d3 Rac8 21. Bf1 Ra2 22. Bh6 Rcc2 23. Be3 Nec6 24. Kg2 d5 25. exd5 exd5 26. Kf3 d4 27. Bh3+ Kd6 28. Bf4+ Kd5 29. Rf1 Rxa1 30. Rxa1 Ne5+ 31. Bxe5 Kxe5 32. Re1+ Kd5 33. Bf5 b2 34. Rb1 Nb3 0-1

[Event "Warsaw-chA 67th"]
[Site "Warsaw"]
[Date "2018.11.12"]
[Round "1"]
[White "Rozycki, Bartlomiej"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2138"]
[BlackElo "1802"]
[PlyCount "117"]
[EventDate "2018.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 g6 6. Nc3 d6 7. Nf3 Bg7 8. a4 0-0 9. Be2 axb5 10. Bxb5 Ba6 11. Ra3 Ne8 12. 0-0 Nc7 13. Qd3 Nd7 14. e4 Qb8 15. Bxa6 Nxa6 16. Nb5 Nb4 17. Qe2 Rc8 18. Bd2 Bxb2 19. Rb3 Bg7 20. Bxb4 cxb4 21. Rxb4 Nc5 22. Qa2 Bf6 23. Rfb1 Nd3 24. Rc4 Nb2 25. Rxc8+ Qxc8 26. e5 Nxa4 27. exf6 Nc3 28. Qxa8 Qxa8 29. Nxc3 exf6 30. Nd4 Kg7 31. Ndb5 Qc8 32. Ra1 f5 33. Ra7 Kh6 34. g3 f6 35. Kg2 f4 36. Ne4 g5 37. Nbxd6 Qc2 38. g4 Kg6 39. Rf7 f3+ 40. Kxf3 Qd1+ 41. Ke3 h5 42. Rxf6+ Kg7 43. gxh5 Qxh5 44. Nf5+ Kg8 45. Rg6+ Kf8 46. Rf6+ Kg8 47. f3 g4 48. fxg4 Qxh2 49. d6 Qg1+ 50. Kf4 Qc1+ 51. Ne3 Qc6 52. Re6 Kf7 53. Re5 Kg6 54. Rg5+ Kf7 55. Rd5 Ke6 56. d7 Qc7+ 57. Kf3 Qd8 58. Nc5+ Ke7 59. Nb7 1-0

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.12.08"]
[Round "12"]
[White "Kasperski, Marcin"]
[Black "Pietrzak, Wojciech"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "1766"]
[BlackElo "1881"]
[PlyCount "112"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. g3 c5 4. Bg2 dxc4 5. Na3 Nc6 6. Nxc4 Be7 7. 0-0 Nf6 8. d3 0-0 9. a3 Bd7 10. Nfe5 Rc8 11. Nxd7 Nxd7 12. Rb1 b5 13. Ne3 a5 14. a4 bxa4 15. Qxa4 Nd4 16. Re1 c4 17. Nxc4 Bb4 18. Bd2 Rxc4 19. dxc4 Nc5 20. Qd1 Bxd2 21. e3 Ndb3 22. Re2 Qd3 23. Bf1 Rd8 24. e4 Nxe4 25. Re3 Qxe3 26. fxe3 Bxe3+ 27. Kg2 Rxd1 28. Rxd1 Bd2 29. Bd3 f5 30. Kf3 Nec5 31. Ke2 Bc1 32. Bc2 Bxb2 33. Bxb3 Nxb3 34. Rb1 Nc1+ 35. Kd2 Ba3 36. c5 Na2 37. Rb8+ Kf7 38. c6 Bd6 39. Rb7+ Kf6 40. c7 Bxc7 41. Rxc7 Nb4 42. Ra7 Nc6 43. Ra6 Ne5 44. Ke2 h5 45. Rxa5 Ng4 46. h3 Nh6 47. Ra4 Nf7 48. h4 Nd6 49. Kf3 Ne4 50. Ra8 g5 51. hxg5+ Nxg5+ 52. Kf4 e5+ 53. Ke3 Ne4 54. Kf3 Ng5+ 55. Ke3 Ne4 56. Kf3 Ng5+ 1/2-1/2

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.11.30"]
[Round "11"]
[White "Pietrzak, Wojciech"]
[Black "Major, Boguslaw"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1881"]
[BlackElo "1732"]
[PlyCount "100"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. d4 Nxe4 4. Nxe4 dxe4 5. Bc4 Nd7 6. c3 Nf6 7. Bg5 g6 8. Qb3 e6 9. 0-0-0 c6 10. a4 Be7 11. Bh6 Ng4 12. Be3 Bg5 13. Nh3 Bxe3+ 14. fxe3 Nxe3 15. Rd2 Nxc4 16. Qxc4 Qd5 17. Qe2 Qa2 18. Qxe4 Qa1+ 19. Qb1 Qxa4 20. Rf2 f5 21. Re1 0-0 22. Nf4 Qc4 23. Rfe2 c5 24. Qd3 Qxd3 25. Nxd3 cxd4 26. cxd4 Rd8 27. Nf4 Rxd4 28. Nxe6 Bxe6 29. Rxe6 Rc8+ 30. Kb1 Rcd8 31. Re8+ Rxe8 32. Rxe8+ Kf7 33. Rh8 Kg7 34. Rb8 Rd7 35. Kc2 g5 36. Rc8 f4 37. Rc3 Kf6 38. g4 Kg6 39. b4 h5 40. h3 a6 41. Rc8 hxg4 42. hxg4 f3 43. Rg8+ Rg7 44. Rd8 f2 45. Rd6+ Kf7 46. Rd7+ Ke6 47. Rxg7 f1Q 48. Rxg5 Qc4+ 49. Kb2 Qxb4+ 50. Kc2 a5 0-1

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.11.24"]
[Round "10"]
[White "Herman, Monika"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1773"]
[BlackElo "1881"]
[PlyCount "181"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 e6 2. Bf4 d5 3. e3 Nf6 4. Nf3 Nbd7 5. Nbd2 h6 6. h3 c5 7. c3 Qb6 8. Qb3 c4 9. Qc2 Qc6 10. Be2 b5 11. a3 a5 12. 0-0 Qb7 13. Ne5 Nxe5 14. Bxe5 Nd7 15. Bg3 Be7 16. e4 0-0 17. exd5 exd5 18. Bf3 Ra6 19. Rfe1 Nf6 20. Re2 Be6 21. Rae1 Qd7 22. Ra1 Re8 23. Ree1 Bf5 24. Qd1 Rb6 25. Be5 Re6 26. g4 Bh7 27. Bg2 Ne4 28. f3 Nxd2 29. Qxd2 Bh4 30. Re3 g5 31. f4 f6 32. f5 R6e7 33. Rf1 Kf7 34. Qe2 fxe5 35. dxe5 Qd8 36. e6+ Kf6 37. Rd1 Qb6 38. Rxd5 Bg3 39. Kh1 Bf4 40. Re4 Rd8 41. Red4 Rxd5 42. Bxd5 Be5 43. Rd1 h5 44. Bf3 hxg4 45. hxg4 Bg8 46. Kg2 Rh7 47. Rh1 Rxh1 48. Kxh1 Qc5 49. Qd1 Bd6 50. Qf1 Qe5 51. Qf2 Bc5 52. Qd2 Bd6 53. Bc6 Ke7 54. Qxg5+ Qf6 55. Qxf6+ Kxf6 56. Bxb5 Be7 57. Bxc4 Ke5 58. Kg2 Kf4 59. f6 Bxf6 60. e7 Bxe7 61. Bxg8 Kxg4 62. Kf2 Kf4 63. Ke2 Ke5 64. Kd3 Kd6 65. Kc4 Kc6 66. Bf7 Kb6 67. Be8 Bf8 68. b4 Be7 69. Kb3 axb4 70. axb4 Bh4 71. Ka4 Be1 72. c4 Bf2 73. Kb3 Bd4 74. Kc2 Bf2 75. Kd2 Bg1 76. Ba4 Bf2 77. Ke2 Bg1 78. Kf3 Bd4 79. Ke4 Bg1 80. Kd5 Bf2 81. c5+ Kc7 82. b5 Bg1 83. b6+ Kb7 84. Bb5 Bf2 85. Kd6 Bg3+ 86. Kd7 Bf4 87. Bd3 Bg3 88. Be4+ Ka6 89. b7 Kb5 90. c6 Kb6 91. Kc8 1-0

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.11.17"]
[Round "9"]
[White "Pietrzak, Wojciech"]
[Black "Trybula, Agata"]
[Result "1-0"]
[ECO "A02"]
[WhiteElo "1881"]
[BlackElo "1693"]
[PlyCount "73"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. f4 Nf6 2. b3 b6 3. Bb2 e6 4. d3 d5 5. e3 Be7 6. Nd2 Bb7 7. Be2 Nbd7 8. Bf3 c5 9. Nc4 0-0 10. Ne2 Qc7 11. Ne5 Ne8 12. 0-0 Bf6 13. d4 g6 14. g4 Bg7 15. h4 f6 16. Nd3 e5 17. dxe5 fxe5 18. fxe5 Nxe5 19. Nxe5 Bxe5 20. Bxd5+ Kg7 21. Bxe5+ Qxe5 22. Bxb7 Qxe3+ 23. Kg2 Rxf1 24. Qxf1 Rb8 25. Bd5 Nf6 26. Bf3 Rf8 27. Qg1 Qe5 28. Rd1 Qe6 29. Nf4 Qe5 30. Nd3 Qc3 31. Qe1 Qd4 32. Qe5 Qd8 33. g5 Kg8 34. gxf6 Re8 35. f7+ Kxf7 36. Bd5+ Kf8 37. Rf1+ 1-0

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.11.15"]
[Round "8"]
[White "Markiewicz, Michal"]
[Black "Pietrzak, Wojciech"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "1889"]
[BlackElo "1881"]
[PlyCount "108"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Qa4+ Qd7 5. Qxd7+ Nxd7 6. Rxb1 Ngf6 7. Nf3 Nb6 8. g3 Nbxd5 9. Bg2 e6 10. 0-0 Be7 11. Ne5 Nd7 12. Nxd7 Kxd7 13. e4 Nf6 14. Re1 c6 15. b4 b5 16. Bd2 Rhb8 17. Rec1 Rb6 18. Rc2 Ne8 19. Be3 Ra6 20. d5 e5 21. Bh3+ Kc7 22. Bc5 Bg5 23. Rd1 Rd8 24. Bf1 Kb8 25. h4 Bf6 26. d6 Rd7 27. Bh3 Kc8 28. Rdc1 Kd8 29. Bxd7 Kxd7 30. Kg2 Bd8 31. f4 exf4 32. gxf4 Nf6 33. Re1 Ra3 34. Bf2 Nh5 35. Re3 Ra4 36. Kf3 Rxb4 37. Rec3 f5 38. Rxc6 fxe4+ 39. Kg4 Nf6+ 40. Kg3 Ra4 41. f5 Nh5+ 42. Kh2 Nf6 43. Bg3 Rd4 44. Ra6 Bb6 45. Rxa7+ Bxa7 46. Rc7+ Kd8 47. Rxa7 e3 48. Ra8+ Kd7 49. Ra7+ Kd8 50. Kg2 Nh5 51. Ra8+ Kd7 52. Ra7+ Kd8 53. Ra8+ Kd7 54. Ra7+ Kd8 1/2-1/2

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.11.08"]
[Round "7"]
[White "Pietrzak, Wojciech"]
[Black "Szukalski, Antoni"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "1881"]
[BlackElo "1741"]
[PlyCount "43"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[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. Nd2 c5 4. e5 Nc6 5. Ngf3 cxd4 6. Nb3 Bb4+ 7. Bd2 Qb6 8. a3 Bxd2+ 9. Qxd2 Nge7 10. Bd3 Ng6 11. Qe2 Nf4 12. Qd2 Nxd3+ 13. Qxd3 Bd7 14. 0-0 Rc8 15. Nbxd4 Nxd4 16. Nxd4 Rc4 17. Rfd1 0-0 18. b3 Rc7 19. Rac1 Qc5 20. c4 Qxa3 21. Nc2 dxc4 22. Nxa3 1-0

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.10.21"]
[Round "5"]
[White "Jaskowski, Piotr"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1871"]
[BlackElo "1881"]
[PlyCount "45"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 c5 4. exd5 exd5 5. d4 Nc6 6. dxc5 d4 7. Ne4 Bxc5 8. Nxc5 Qa5+ 9. c3 dxc3 10. b4 Nxb4 11. Nd3 Bf5 12. Nxb4 Qxb4 13. Qd4 Qe7+ 14. Be3 c2 15. Bb5+ Kf8 16. 0-0 Nf6 17. Rac1 a6 18. Ba4 Rc8 19. Rfe1 Qa3 20. Bb3 Qa5 21. Bd2 Qc7 22. Bb4+ Kg8 23. Re7 1-0

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.10.14"]
[Round "4"]
[White "Pietrzak, Wojciech"]
[Black "Kolodziejczyk, Andrzej"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1881"]
[BlackElo "1799"]
[PlyCount "58"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bd3 c6 6. h3 Bf5 7. Nf3 e6 8. 0-0 Nbd7 9. Be2 Bd6 10. Nh4 Bg6 11. Re1 Qc7 12. Nxg6 hxg6 13. Bf3 0-0-0 14. Ne2 Nd5 15. c4 Nf4 16. Bxf4 Bxf4 17. Qa4 Nb6 18. Qxa7 Nxc4 19. d5 Nd2 20. Bg4 Rxd5 21. Nxf4 Qxf4 22. Rxe6 fxe6 23. Bxe6+ Kc7 24. Bxd5 cxd5 25. Qa5+ Kb8 26. Rd1 Ne4 27. Qxd5 Qxf2+ 28. Kh2 Rxh3+ 29. Kxh3 Qg3# 0-1

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.10.06"]
[Round "3"]
[White "Koziol, Pawel"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "1855"]
[BlackElo "1881"]
[PlyCount "79"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. Nc3 c5 4. g3 e6 5. d4 cxd4 6. Nxd4 a6 7. Bg2 Ne7 8. 0-0 0-0 9. Bg5 h6 10. Be3 Qc7 11. Rc1 Qxc4 12. Nd5 exd5 13. Rxc4 dxc4 14. Qc1 d5 15. b3 b5 16. Qa3 Bxd4 17. Bxd4 Nbc6 18. Bc5 Re8 19. bxc4 bxc4 20. Rd1 Rb8 21. Qe3 Bg4 22. f3 Bf5 23. Qxh6 Rb2 24. Rd4 f6 25. Rh4 Kf7 26. e4 Rb1+ 27. Bf1 g5 28. exf5 gxh4 29. Qh7+ Kf8 30. Qg6 Re1 31. Qxf6+ Kg8 32. Qg5+ Kf7 33. Kf2 Re5 34. Qh5+ Kf8 35. Qh8+ Kf7 36. Qh7+ Kf6 37. Qxh4+ Kxf5 38. f4 Re4 39. Qh5+ Kf6 40. Qxe8 1-0

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.09.30"]
[Round "1"]
[White "Kaminski, Jan"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "1882"]
[BlackElo "1881"]
[PlyCount "65"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e6 2. g3 c5 3. Bg2 Nc6 4. Nf3 g6 5. 0-0 Bg7 6. Nc3 Nge7 7. d3 0-0 8. Bf4 d5 9. cxd5 Nxd5 10. Nxd5 exd5 11. Qd2 Re8 12. Bh6 Rxe2 13. Qxe2 Bxh6 14. h3 Be6 15. Rfd1 Qb6 16. a3 Na5 17. b4 cxb4 18. Rab1 b3 19. Ne5 Rc8 20. Ng4 Bxg4 21. hxg4 Rc2 22. Qe8+ Bf8 23. d4 Qe6 24. Qd8 Qe2 25. Rf1 Nc6 26. Qxd5 Qxg4 27. Rxb3 Nxd4 28. Rxb7 Ne6 29. Qd7 Qf5 30. Be4 Qh3 31. Bxc2 Bc5 32. Qxf7+ Kh8 33. Rb8+ 1-0

[Event "Warsaw YMCA Autumn-B 175th"]
[Site "Warsaw"]
[Date "2016.09.29"]
[Round "2"]
[White "Pietrzak, Wojciech"]
[Black "Rusin, Ryszard"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1881"]
[BlackElo "1731"]
[PlyCount "65"]
[EventDate "2016.09.22"]
[EventType "tourn"]
[EventRounds "13"]
[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. e5 c5 4. Nf3 Nc6 5. Bd3 Qc7 6. 0-0 Nge7 7. Bf4 Nf5 8. Bxf5 exf5 9. Nc3 Be6 10. Nb5 Qb6 11. Nd6+ Bxd6 12. exd6 0-0-0 13. c4 cxd4 14. c5 Qa5 15. Nxd4 Bd7 16. Qd3 g6 17. Rfc1 Rde8 18. Bd2 Qa4 19. Nxc6 Bxc6 20. b4 Re6 21. Qd4 Rg8 22. Re1 Rge8 23. h3 a5 24. Rxe6 Rxe6 25. Qh8+ Be8 26. bxa5 h5 27. Qb2 Qb5 28. Qc1 Re2 29. Rb1 Qd3 30. Qb2 Bb5 31. a6 bxa6 32. c6 Kb8 33. d7 1-0

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.06.24"]
[Round "13"]
[White "Fus, Jakub"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "D33"]
[WhiteElo "1937"]
[BlackElo "1856"]
[PlyCount "59"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Nc3 Nc6 6. g3 c4 7. Bf4 Bb4 8. Rc1 Nge7 9. Bg2 0-0 10. 0-0 Re8 11. Ne5 f6 12. Nxc6 bxc6 13. e4 Bxc3 14. Rxc3 Ng6 15. Bc1 dxe4 16. Re1 Be6 17. Bxe4 Bd5 18. Rce3 Bxe4 19. Rxe4 Rxe4 20. Rxe4 Ne5 21. Qe2 Nd3 22. Bd2 Rb8 23. b3 f5 24. Re6 cxb3 25. axb3 Kf7 26. Rxc6 Qxd4 27. Qe6+ Kf8 28. Qxf5+ Kg8 29. Bc3 Qd8 30. Qe6+ 1-0

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.06.23"]
[Round "12"]
[White "Pietrzak, Wojciech"]
[Black "Borowy, Cezary"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1856"]
[BlackElo "2026"]
[PlyCount "112"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Bf5 3. Bf4 e6 4. e3 c6 5. a3 Nf6 6. h3 Bd6 7. Bxd6 Qxd6 8. Nge2 Nbd7 9. Ng3 Bg6 10. Bd3 c5 11. dxc5 Qxc5 12. Bxg6 hxg6 13. Qd4 Rc8 14. 0-0-0 Qa5 15. Qb4 Qxb4 16. axb4 Rh4 17. Nb5 Ke7 18. Nd4 Kf8 19. f4 Rh8 20. Nf3 Ke7 21. Rd4 Nb6 22. Rhd1 Nc4 23. e4 Ne3 24. R1d2 dxe4 25. Nxe4 Nf5 26. Nd6 Nxd6 27. Rxd6 Nd5 28. R6xd5 exd5 29. Rxd5 Rhd8 30. Re5+ Kf8 31. Ra5 a6 32. Ne5 Rd4 33. b5 Rxf4 34. bxa6 bxa6 35. Rxa6 Rf1+ 36. Kd2 Rf2+ 37. Kd3 Rfxc2 38. b4 R8c3+ 39. Kd4 f6 40. Nxg6+ Kf7 41. Nh8+ Kg8 42. Ng6 Rc4+ 43. Kd3 R2c3+ 44. Kd2 Rg3 45. Ne7+ Kh7 46. b5 Rxg2+ 47. Kd3 Rb4 48. b6 Rg3+ 49. Kc2 Rxh3 50. Nd5 Rb5 51. Nc3 Rb4 52. Nd5 Rg4 53. Nc3 Rg2+ 54. Kb3 Rgg3 55. b7 Rxc3+ 56. Ka2 Rh2+ 0-1

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.06.17"]
[Round "11"]
[White "Moscicka, Pola"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "1788"]
[BlackElo "1856"]
[PlyCount "61"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. c3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. Ne2 f6 8. exf6 Nxf6 9. 0-0 Nc6 10. Nf3 c4 11. Bc2 Bd7 12. Re1 Qb6 13. Nf4 Nd8 14. Ne5 Nf7 15. Nxd7 Kxd7 16. Rxe6 Bd6 17. Rxf6 gxf6 18. Qg4+ Kd8 19. Nxd5 Qc6 20. Qf5 Be7 21. Bf4 Rc8 22. Nxe7 Kxe7 23. Re1+ Kf8 24. Ba4 Qxa4 25. Qxc8+ Kg7 26. Qg4+ Kf8 27. h3 Qxa2 28. Qf5 Kg7 29. Re6 Rf8 30. Rxf6 Qb1+ 31. Qxb1 1-0

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.06.10"]
[Round "10"]
[White "Pietrzak, Wojciech"]
[Black "Kasperkiewicz, Pawel"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1856"]
[BlackElo "1923"]
[PlyCount "58"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 Nge7 7. Na3 cxd4 8. cxd4 Nf5 9. Nc2 Nb4 10. Nxb4 Bxb4+ 11. Kf1 0-0 12. h4 f6 13. g4 Ne7 14. a3 Ba5 15. exf6 Rxf6 16. Bg5 Rf8 17. Qd3 Qe8 18. h5 Nc6 19. b4 Bb6 20. b5 Rxf3 21. Bxf3 Nxd4 22. Kg2 Bxb5 23. Qb1 Nxf3 24. Kxf3 Qf7+ 25. Bf4 Bc6 26. Kg3 Bxf2+ 27. Kxf2 Qxf4+ 28. Ke2 Qxg4+ 29. Kd2 Rf8 0-1

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.06.03"]
[Round "9"]
[White "Tychulski, Krzysztof"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "1887"]
[BlackElo "1856"]
[PlyCount "99"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 a5 7. Bb5+ Nc6 8. Nc3 Be7 9. Be3 0-0 10. a4 Be6 11. Nd5 Bxd5 12. exd5 Nb4 13. c4 Nh5 14. g3 f5 15. Bf2 e4 16. fxe4 fxe4 17. 0-0 e3 18. Bxe3 Rxf1+ 19. Kxf1 Bg5 20. Bf2 Qf6 21. Kg1 Rf8 22. Qe2 Nd3 23. Bd4 Qg6 24. Qe6+ Qxe6 25. dxe6 Nb4 26. Rf1 Nc6 27. Rxf8+ Kxf8 28. Bxc6 bxc6 29. Nxa5 c5 30. Bc3 Ke7 31. Nb7 Kxe6 32. a5 Kd7 33. a6 Kc6 34. Ba5 Be7 35. Nd8+ Bxd8 36. Bxd8 g6 37. Be7 Ng7 38. a7 Kb7 39. Bxd6 Ne6 40. Bb8 g5 41. Kf2 g4 42. Ke3 h5 43. Ke4 Nd4 44. Kf4 Nf3 45. h4 Nd2 46. Kg5 Nxc4 47. Kxh5 Nxb2 48. Kxg4 Nd3 49. Kf3 Nb4 50. h5 1-0

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.05.27"]
[Round "8"]
[White "Pietrzak, Wojciech"]
[Black "Szymczak, Rafal"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "1856"]
[BlackElo "2043"]
[PlyCount "95"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. 0-0-0 Qc7 13. Ne5 Nxe5 14. dxe5 Qxe5 15. Bc3 Qd5 16. Qe3 Bc5 17. Qf4 Qg5 18. Qxg5 hxg5 19. h6 Bxf2 20. hxg7 Rxh1 21. Nxh1 Be3+ 22. Kb1 Ng8 23. Ng3 c5 24. Ne4 Bd4 25. Bxd4 cxd4 26. Rxd4 Rd8 27. Rxd8+ Kxd8 28. Nd6 Ke7 29. Nxb7 f5 30. c4 Kf6 31. Nd8 e5 32. Nc6 e4 33. Nxa7 f4 34. Kc2 Kxg7 35. c5 Kf6 36. c6 g4 37. c7 Ne7 38. Nc6 Nc8 39. Kd2 g3 40. Ke2 Ke6 41. Nd4+ Kd7 42. Nb5 Nb6 43. Nc3 f3+ 44. gxf3 g2 45. Kf2 exf3 46. Nb5 Nc4 47. Nd4 Nxb2 48. Nxf3 1/2-1/2

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.05.13"]
[Round "6"]
[White "Praczukowski, Stanislaw"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "2075"]
[BlackElo "1856"]
[PlyCount "71"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. e5 c5 5. Qg4 Kf8 6. dxc5 Nd7 7. Ngf3 h5 8. Qf4 Nxc5 9. Nb3 Nh6 10. Nxc5 Bxc5 11. Bd3 Nf5 12. Bxf5 exf5 13. Be3 Be7 14. 0-0 Be6 15. Rfd1 Rc8 16. c3 Rc4 17. Rd4 Qb6 18. Rb1 Qa6 19. a3 b6 20. Rbd1 g6 21. Rxc4 Qxc4 22. Qxc4 dxc4 23. h4 Kg7 24. Bg5 f6 25. exf6+ Bxf6 26. Bxf6+ Kxf6 27. Ng5 Rc8 28. Rd6 Re8 29. f4 Re7 30. Kf2 b5 31. g3 Re8 32. Ke3 Re7 33. Kf3 Re8 34. Ke2 Re7 35. Ke3 Rg7 36. Rxe6# 1-0

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.05.06"]
[Round "5"]
[White "Pietrzak, Wojciech"]
[Black "Choroszej, Aleksander"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1856"]
[BlackElo "1959"]
[PlyCount "82"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. h3 Nd7 6. Nf3 b5 7. a4 b4 8. Nd5 a5 9. Bc4 Bb7 10. Nf4 e5 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. Nd5 Nf6 14. Bb5+ Kf8 15. Bh6+ Kg8 16. Bc4 Nxd5 17. Bxd5 c6 18. Bb3 Qh4 19. Qf3 d5 20. exd5 cxd5 21. Bxd5 Bxd5 22. Qxd5 Re8 23. Qb5 Qe4+ 24. Kf1 Bxb2 25. Rd1 Bg7 26. Be3 h5 27. Qd3 Qc6 28. Qd7 Qc4+ 29. Kg1 Kh7 30. Kh2 Rd8 31. Qb5 Rxd1 32. Rxd1 Qxc2 33. Rc1 Qa2 34. Qxa5 b3 35. Qd5 Qxa4 36. Qxf7 Rf8 37. Qb7 b2 38. Rc7 Rg8 39. Qxb2 Qa6 40. Bd4 Qd6+ 41. Be5 Qxc7 0-1

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.04.29"]
[Round "4"]
[White "Golecki, Jan"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "1834"]
[BlackElo "1856"]
[PlyCount "50"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. c3 c5 5. e5 Qc7 6. Bd3 Nc6 7. Ne2 Bd7 8. 0-0 c4 9. Bb1 f6 10. Nf4 0-0-0 11. exf6 Nxf6 12. Nf3 Bd6 13. g3 Rde8 14. Re1 Nd8 15. b3 Nf7 16. bxc4 dxc4 17. Be3 g5 18. Ng2 Rhg8 19. a4 Bc6 20. Nd2 Bd5 21. a5 h5 22. Nf1 Qc6 23. Bc2 Bf3 24. d5 Bxd1 25. dxc6 Bxc2 0-1

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.04.22"]
[Round "3"]
[White "Pietrzak, Wojciech"]
[Black "Kokoszczynski, Jan"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1856"]
[BlackElo "1921"]
[PlyCount "119"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Qa4+ Bd7 7. Qb3 Qxb3 8. axb3 e6 9. Na3 cxd4 10. Nb5 Bxb5 11. Bxb5+ Nbd7 12. Nxd4 a6 13. 0-0 Bc5 14. Rd1 Rd8 15. Be2 0-0 16. Bg5 h6 17. Bh4 g5 18. Bg3 Ne4 19. Bf3 Bxd4 20. Bxe4 Nc5 21. Bc2 e5 22. b4 Ne6 23. cxd4 Nxd4 24. Bd3 Rfe8 25. f3 Kg7 26. Bf2 f5 27. Bxd4 Rxd4 28. Bxf5 Rxb4 29. Rd7+ Kf6 30. g4 Rxb2 31. Rd6+ Kg7 32. Rc1 Re7 33. Rc8 e4 34. Bxe4 a5 35. Rg6+ Kf7 36. Rcg8 Rd2 37. R8g7+ Kf8 38. Rxe7 Kxe7 39. Rg7+ Kd6 40. Rxb7 Kc5 41. Rc7+ Kb4 42. Rc2 Rd1+ 43. Kf2 a4 44. Ke2 Rd6 45. Rd2 Ra6 46. Rb2+ Kc3 47. Ra2 Ra5 48. Kd1 Kb3 49. Rd2 a3 50. Bd5+ Kc3 51. Ba2 Re5 52. Re2 Rb5 53. Rc2+ Kd4 54. Kd2 Rb6 55. Rc4+ Ke5 56. Re4+ Kf6 57. Kd3 Rb2 58. Re2 Rb6 59. Kc4 Rb8 60. Bb3 1-0

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.04.15"]
[Round "2"]
[White "Bajkowski, Marcin"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "B78"]
[WhiteElo "1910"]
[BlackElo "1856"]
[PlyCount "86"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 0-0 8. f3 Nc6 9. Qd2 Bd7 10. 0-0-0 Rb8 11. g4 Na5 12. Bb3 b5 13. Nd5 Nxd5 14. exd5 Nc4 15. Qe2 Nxe3 16. Qxe3 a5 17. a3 a4 18. Ba2 b4 19. axb4 Rxb4 20. c3 Qc7 21. Nc6 Bxc6 22. cxb4 Bxd5+ 23. Kb1 Bxa2+ 24. Kxa2 Qc4+ 25. Kb1 Rb8 26. Qa3 Qxb4 27. Qxb4 Rxb4 28. Rd2 a3 29. Rc1 Bxb2 30. Rc8+ Kg7 31. Ka2 Kf6 32. Rc7 Rf4 33. Rd3 e6 34. Rc6 d5 35. Rxd5 Rxf3 36. g5+ Kg7 37. Rd7 e5 38. Rc8 h6 39. h4 hxg5 40. hxg5 Rf5 41. Rcc7 e4 42. Re7 Be5 43. Rc4 Rf2+ 0-1

[Event "Warsaw YMCA Spring-A 167th"]
[Site "Warsaw"]
[Date "2016.04.08"]
[Round "1"]
[White "Pietrzak, Wojciech"]
[Black "Piotrowski, Arkadiusz"]
[Result "1/2-1/2"]
[ECO "B72"]
[WhiteElo "1856"]
[BlackElo "2006"]
[PlyCount "36"]
[EventDate "2016.04.08"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Nb3 Bd7 9. 0-0 Ne5 10. h3 Qc8 11. f4 Nc4 12. Bc1 0-0 13. e5 Ne8 14. Nd5 Kh8 15. Nxe7 Qc7 16. Nd5 Qc8 17. Ne7 Qc7 18. Nd5 Qc8 1/2-1/2

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.03.23"]
[Round "13"]
[White "Piotrowski, Arkadiusz"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1976"]
[BlackElo "1886"]
[PlyCount "49"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. g3 c5 4. Bg2 Nc6 5. 0-0 Nf6 6. e3 Bd7 7. b3 cxd4 8. Nxd4 Be7 9. Bb2 0-0 10. Nd2 Rc8 11. c4 Re8 12. Qe2 dxc4 13. Nxc4 Nd5 14. e4 Ndb4 15. Nxc6 Nxc6 16. Rfd1 e5 17. Bh3 Bxh3 18. Rxd8 Rcxd8 19. Qh5 Be6 20. Nxe5 g6 21. Qh6 Bf8 22. Qe3 Nb4 23. Qc3 f6 24. Nxg6 hxg6 25. Qxf6 1-0

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.03.10"]
[Round "10"]
[White "Pietrzak, Wojciech"]
[Black "Malicka, Maria"]
[Result "1-0"]
[ECO "C51"]
[WhiteElo "1886"]
[BlackElo "1774"]
[PlyCount "83"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[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. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 d6 7. dxe5 Nxe5 8. Nxe5 dxe5 9. Qh5 g6 10. Qxe5 Nf6 11. Ba3 Rf8 12. 0-0 Ng4 13. Qb5+ c6 14. Qb3 Bxa3 15. Nxa3 Qb6 16. Rad1 Qxb3 17. axb3 b5 18. Be2 Ke7 19. h3 Nf6 20. Bf3 Be6 21. e5 Nd5 22. Nxb5 a6 23. Nd4 Rfc8 24. Nxe6 fxe6 25. c4 Nb4 26. Rd6 Rab8 27. Rfd1 Rd8 28. Bg4 Rxd6 29. Rxd6 Nc2 30. Rxe6+ Kf7 31. Rxc6 Rxb3 32. Rxa6 Rc3 33. Ra7+ Ke8 34. Bd7+ Kd8 35. Bb5 Na3 36. Rd7+ Kc8 37. e6 Nxb5 38. cxb5 Rb3 39. Rxh7 Rxb5 40. Rg7 g5 41. Kh2 Re5 42. e7 1-0

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.03.04"]
[Round "11"]
[White "Barc, Michal"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "D33"]
[WhiteElo "1770"]
[BlackElo "1886"]
[PlyCount "76"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c4 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. Nc3 Bg4 8. Bg5 Bxf3 9. Bxf3 cxd4 10. Bxf6 Qxf6 11. Nxd5 Qe5 12. 0-0 Rd8 13. Qb3 Qb8 14. Rac1 Bd6 15. Rfd1 0-0 16. a3 Kh8 17. Qc2 Rfe8 18. b4 Bf8 19. Nf4 Ne5 20. Bg2 Rd6 21. Qc7 Rd7 22. Qxb8 Rxb8 23. Rc2 b5 24. Nd5 d3 25. exd3 Rbd8 26. f4 Ng4 27. Re1 h5 28. h3 Nh6 29. Be4 g6 30. Nc7 f5 31. Bg2 Rxd3 32. Nxb5 a6 33. Nc7 Rxa3 34. Re6 Rxg3 35. Kh2 h4 36. Nxa6 Bd6 37. Rd2 Nf7 38. Kg1 Bc5+ 0-1

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.03.03"]
[Round "9"]
[White "Pietrzak, Wojciech"]
[Black "Kurowski, Andrzej"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "1886"]
[BlackElo "1801"]
[PlyCount "66"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[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. Bd3 dxe4 4. Bxe4 Nf6 5. Bd3 c5 6. c3 Nc6 7. Nf3 cxd4 8. cxd4 Bb4+ 9. Nc3 0-0 10. 0-0 Nd5 11. Qc2 h6 12. a3 Be7 13. Be3 Bf6 14. Rad1 Bd7 15. Bh7+ Kh8 16. Be4 Rc8 17. Qd2 Nxe3 18. fxe3 Na5 19. Bb1 Nc4 20. Qd3 g6 21. Rf2 Qb6 22. Ne4 Bg7 23. Nc5 Bb5 24. Nh4 e5 25. Qb3 exd4 26. exd4 Bxd4 27. Rxd4 Qxc5 28. Qc3 Ne5 29. Qxc5 Rxc5 30. Rd1 Rfc8 31. h3 Rc1 32. Rfd2 Ba4 33. Rd8+ Kg7 0-1

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.02.25"]
[Round "8"]
[White "Borowy, Cezary"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1936"]
[BlackElo "1886"]
[PlyCount "67"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. b3 d5 3. Bb2 dxe4 4. Nc3 Nf6 5. Qe2 b6 6. Nxe4 Nbd7 7. Qf3 Nxe4 8. Qxe4 Rb8 9. Nf3 Bb7 10. Qg4 Nf6 11. Qh3 Bc5 12. Bb5+ c6 13. Bd3 h5 14. 0-0 Kf8 15. Rae1 Bd6 16. Ne5 c5 17. f4 Qc7 18. Nc4 Re8 19. Be5 Bxe5 20. fxe5 Ng4 21. Nd6 Re7 22. Qg3 c4 23. bxc4 Qc5+ 24. Kh1 Qd4 25. h3 Bc6 26. Bg6 f5 27. exf6 gxf6 28. c3 Qxd2 29. hxg4 h4 30. Qf2 Qxc3 31. Be4 h3 32. Qxf6+ Qxf6 33. Rxf6+ Kg7 34. Rg6+ 1-0

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.02.19"]
[Round "12"]
[White "Pietrzak, Wojciech"]
[Black "Grabowicz, Marcin"]
[Result "1-0"]
[ECO "C40"]
[WhiteElo "1886"]
[BlackElo "1923"]
[PlyCount "109"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 f5 3. d4 fxe4 4. Nxe5 Nf6 5. Bg5 d6 6. Nc4 Be7 7. Nc3 0-0 8. Be2 c6 9. d5 b5 10. Ne3 b4 11. Bxf6 Bxf6 12. Nxe4 Bxb2 13. Rb1 Be5 14. dxc6 Be6 15. Bc4 Bxc4 16. Nxc4 Qc7 17. Qd5+ Kh8 18. Nxe5 dxe5 19. Rxb4 Nxc6 20. Rc4 Rac8 21. Nd6 Qb6 22. Nxc8 Qxf2+ 23. Kd1 Nd4 24. Rxd4 exd4 25. Nd6 h6 26. Re1 Rb8 27. Re8+ Rxe8 28. Nxe8 Qf1+ 29. Kd2 Qf2+ 30. Kd3 Qe3+ 31. Kc4 Qxe8 32. Kxd4 Qa4+ 33. c4 Qxa2 34. c5 Qb2+ 35. Ke3 Qc1+ 36. Ke4 Qe1+ 37. Kf5 Qf2+ 38. Ke6 Qe2+ 39. Kd7 Qb5+ 40. Ke7 Qb4 41. Ke8 Qb5+ 42. Kf7 Qf1+ 43. Ke7 Qf6+ 44. Ke8 Qg6+ 45. Kd8 Qf6+ 46. Kd7 Qh4 47. c6 Qg4+ 48. Qe6 Qd4+ 49. Kc8 Qb6 50. Qe8+ Kh7 51. Qe4+ Kg8 52. c7 Qa6+ 53. Qb7 Qd6 54. Kb8 Qxh2 55. Ka8 1-0

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.02.18"]
[Round "7"]
[White "Pietrzak, Wojciech"]
[Black "Szukalski, Antoni"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1886"]
[BlackElo "1816"]
[PlyCount "61"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[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. e5 c5 4. Nf3 Nc6 5. Bd3 cxd4 6. 0-0 Nge7 7. Bf4 Qb6 8. Nbd2 Ng6 9. Bg3 Qxb2 10. Nb3 Qa3 11. h4 Nge7 12. Bf4 Ng6 13. Bg3 Nge7 14. Re1 Bd7 15. Bf4 Nc8 16. Bc1 Qa4 17. Ng5 Be7 18. Qh5 g6 19. Qf3 Nd8 20. h5 Nb6 21. Qh3 Bb5 22. Bxb5+ Qxb5 23. hxg6 fxg6 24. Nxd4 Qb4 25. c3 Qc4 26. Ndxe6 Qc6 27. Nd4 Qc8 28. e6 h6 29. Bf4 Rf8 30. Qxh6 Rxf4 31. Qxg6+ 1-0

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.02.11"]
[Round "6"]
[White "Moskwinski, Marek"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1820"]
[BlackElo "1886"]
[PlyCount "53"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. 0-0 Be7 6. c3 h6 7. Qb3 d5 8. exd5 b5 9. dxc6 bxc4 10. cxd7+ Bxd7 11. Qxc4 Rc8 12. Qe2 exd4 13. Nxd4 Nf6 14. Re1 Kf8 15. Bf4 Nd5 16. Be5 Qa5 17. Nd2 Re8 18. Nc4 Qc5 19. Nb3 Qc6 20. Qd3 Be6 21. Nd4 Qb7 22. Nxe6+ fxe6 23. Qg6 Nf6 24. Bxf6 gxf6 25. Rxe6 Rg8 26. Qxh6+ Kf7 27. Rxf6+ 1-0

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.02.04"]
[Round "5"]
[White "Pietrzak, Wojciech"]
[Black "Baranska, Monika"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "1886"]
[BlackElo "1748"]
[PlyCount "82"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. c4 e6 4. Nc3 Be7 5. Bf4 Nf6 6. e3 Nbd7 7. Qc2 Nh5 8. cxd5 exd5 9. Bg3 Nxg3 10. hxg3 Nf6 11. Bd3 h6 12. a3 Be6 13. Ng5 Qd7 14. Nxe6 Qxe6 15. Bf5 Qd6 16. Na4 Nd7 17. b4 Rb8 18. Qe2 Nf6 19. Nc5 g6 20. Bc2 Nd7 21. Nd3 Nf6 22. Ne5 Nd7 23. Nd3 Nf6 24. Nf4 Ne4 25. Bxe4 dxe4 26. Qc2 f5 27. g4 Bg5 28. gxf5 gxf5 29. Nh5 0-0 30. g4 f4 31. Qb3+ Qd5 32. Qxd5+ cxd5 33. exf4 Bxf4 34. Nxf4 Rxf4 35. Rxh6 Rxg4 36. Ke2 Rc8 37. Rah1 Rc2+ 38. Ke3 Rc3+ 39. Ke2 Rc2+ 40. Ke3 Rc3+ 41. Ke2 Rc2+ 1/2-1/2

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.01.29"]
[Round "4"]
[White "Lewandrowski, Tomasz"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1886"]
[BlackElo "1886"]
[PlyCount "90"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 Nc6 7. Nxc6 bxc6 8. 0-0 Bxc3 9. bxc3 Qa5 10. Bd2 0-0 11. Qe2 d6 12. c4 Qc7 13. f4 e5 14. f5 d5 15. cxd5 cxd5 16. exd5 e4 17. Bc4 Bb7 18. Bf4 Qc5+ 19. Be3 Qc7 20. Bd4 Bxd5 21. Bxd5 Nxd5 22. f6 g6 23. Qxe4 Qc4 24. Rae1 h6 25. Be5 Rac8 26. Bd6 Qxe4 27. Rxe4 Rfd8 28. Be7 Nxe7 29. fxe7 Re8 30. Re2 Rc7 31. Rfe1 f5 32. Kf2 Kf7 33. h4 Kf6 34. h5 gxh5 35. Re6+ Kf7 36. R6e2 Kf6 37. Kg3 Rg8+ 38. Kh4 Rc4+ 39. Kh3 Re8 40. Re6+ Kg5 41. Rd1 Re4 42. Re1 Rc4 43. R1e2 Ra4 44. R2e3 Rh4+ 45. Kg3 f4+ 0-1

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.01.22"]
[Round "1"]
[White "Pietrzak, Wojciech"]
[Black "Staniak, Mariusz"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1886"]
[BlackElo "1793"]
[PlyCount "52"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. d3 d6 6. Bg5 h6 7. Bxf6 Qxf6 8. Nd5 Qd8 9. c3 Ne7 10. d4 exd4 11. cxd4 Nxd5 12. dxc5 Nf4 13. 0-0 0-0 14. cxd6 cxd6 15. Qd2 Qf6 16. Rad1 Bh3 17. Ne1 Qg5 18. f3 Rac8 19. Bd5 Rc7 20. Rf2 Bd7 21. Kh1 Rfc8 22. Bb3 Bb5 23. a4 Ba6 24. Qxd6 Be2 25. g3 Bxd1 26. gxf4 Qh4 0-1

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.01.21"]
[Round "3"]
[White "Pietrzak, Wojciech"]
[Black "Kasperkiewicz, Pawel"]
[Result "0-1"]
[ECO "D70"]
[WhiteElo "1886"]
[BlackElo "1899"]
[PlyCount "46"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[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. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0-0 e5 10. d5 Nd4 11. f4 Bg4 12. fxe5 Bxd1 13. Bxd4 Bg4 14. h3 Bd7 15. g4 c6 16. Nf3 cxd5 17. exd5 Rc8 18. Kb1 Nc4 19. Qf4 Qa5 20. h4 Qb4 21. Rh2 Na3+ 22. Ka1 Rxc3 23. Qd2 Rxf3 0-1

[Event "Warsaw YMCA Winter-B 164th"]
[Site "Warsaw"]
[Date "2016.01.14"]
[Round "2"]
[White "Liberadzki, Slawomir"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "2024"]
[BlackElo "1886"]
[PlyCount "45"]
[EventDate "2016.01.07"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. b3 f5 4. Bb2 c6 5. g3 Nf6 6. Bg2 Be7 7. 0-0 0-0 8. d3 Na6 9. Nbd2 Nc7 10. Qc2 Bd7 11. Rad1 Nh5 12. Ne5 g5 13. Rfe1 g4 14. e4 Bf6 15. Nf1 Be8 16. exf5 exf5 17. Ne3 Bg6 18. cxd5 cxd5 19. Qc5 Rc8 20. Nxd5 b6 21. Nxf6+ Nxf6 22. Qc1 Kg7 23. Nc6 1-0

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.12.16"]
[Round "13"]
[White "Kosny, Marek"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "D40"]
[WhiteElo "1912"]
[BlackElo "1918"]
[PlyCount "85"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 c5 4. Nc3 Nc6 5. e3 Nf6 6. Be2 dxc4 7. 0-0 cxd4 8. exd4 Be7 9. Qa4 0-0 10. Qxc4 Nb4 11. Bf4 Nbd5 12. Bg3 Bd7 13. Qb3 Qb6 14. Qxb6 axb6 15. Nxd5 Nxd5 16. Ne5 Rfd8 17. a3 Be8 18. Bf3 f6 19. Nc4 Ra6 20. Ne3 Bc6 21. Rfc1 Ra4 22. Nxd5 Bxd5 23. Bc7 Bxf3 24. Bxd8 Bxd8 25. gxf3 Kf7 26. b4 b5 27. Rc5 Bb6 28. Rxb5 Bxd4 29. Rxb7+ Kg6 30. Rd1 e5 31. Rd3 h5 32. f4 Kf5 33. fxe5 fxe5 34. Rxg7 Ke4 35. Rb3 Ra6 36. Kg2 Rc6 37. b5 Rc2 38. Rf7 Bb6 39. Rf6 Bd8 40. Rd6 Be7 41. Rc6 Bc5 42. Rxc5 Rxc5 43. b6 1-0

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.12.11"]
[Round "12"]
[White "Pietrzak, Wojciech"]
[Black "Praczukowski, Stanislaw"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1918"]
[BlackElo "2028"]
[PlyCount "119"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[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. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Ng6 6. e5 Ng8 7. Bc4 d5 8. Bxd5 c6 9. Bb3 Be6 10. Bxe6 fxe6 11. Ne4 Qd5 12. Qg4 0-0-0 13. Ng5 Nh6 14. Qxe6+ Qxe6 15. Nxe6 Re8 16. Nxf8 Rhxf8 17. Bxh6 gxh6 18. f3 c5 19. c3 Nf4 20. Kf1 Rd8 21. Rd1 cxd4 22. cxd4 Ne6 23. Kf2 Rxd4 24. Rxd4 Nxd4 25. Ke3 Ne6 26. Rd1 Rd8 27. Rc1+ Kd7 28. g4 Rc8 29. Rd1+ Ke7 30. Rd2 Rc1 31. f4 Re1+ 32. Kf2 Re4 33. f5 Nf8 34. Rc2 Rxe5 35. Rc7+ Kf6 36. Rxb7 Re7 37. Rb3 Rc7 38. Kg3 Nd7 39. Rd3 Ke7 40. Re3+ Kf7 41. Re6 Nf6 42. Ra6 Re7 43. Kf3 Kg7 44. h4 Kf7 45. b4 h5 46. g5 Ng4 47. a4 Ne5+ 48. Kg3 Nd3 49. b5 Rb7 50. Rf6+ Kg7 51. Rd6 Nb2 52. Rd4 Rc7 53. a5 Nc4 54. a6 Nb6 55. Rd8 Rc5 56. f6+ Kf7 57. Rh8 Rxb5 58. Rxh7+ Kf8 59. g6 Rb3+ 60. Kg2 1-0

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.11.18"]
[Round "9"]
[White "Kokoszczynski, Jan"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "1873"]
[BlackElo "1918"]
[PlyCount "135"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[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. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 Qb6 8. Nf3 f6 9. exf6 Nxf6 10. 0-0 Bd6 11. Re1 0-0 12. Nf4 cxd4 13. cxd4 Ne4 14. Bxe4 Bxf4 15. Bc2 Bd7 16. b3 Bxc1 17. Rxc1 Rf4 18. Ng5 Qxd4 19. Bxh7+ Kf8 20. Qe2 Re8 21. Bg6 Re7 22. Rcd1 Qb6 23. g3 Rf6 24. Nh7+ Kg8 25. Nxf6+ gxf6 26. h4 Ne5 27. Bb1 Rg7 28. Kg2 d4 29. Be4 f5 30. Bd5 Ng6 31. Qd2 exd5 32. Qxd4 Qxd4 33. Rxd4 f4 34. Kh2 fxg3+ 35. fxg3 Ne7 36. Rg1 Bg4 37. Rc1 Bf3 38. Rc7 Nc6 39. Rc8+ Kh7 40. Rf4 Bg4 41. Rcf8 d4 42. Rf2 d3 43. Rd2 Ne5 44. Kg2 Rc7 45. Kf2 Re7 46. Rf4 Be2 47. Re4 Rf7+ 48. Ke3 Rf3+ 49. Kd4 Nc6+ 50. Kc5 Rf5+ 51. Kd6 Rf2 52. Kc7 Na5 53. b4 Rf7+ 54. Kc8 Nc6 55. b5 Bf3 56. Rf4 Rxf4 57. gxf4 Na5 58. Rxd3 Bg4+ 59. Kb8 a6 60. b6 Be6 61. a3 Kg7 62. Rg3+ Kf6 63. Rg5 Bf5 64. h5 Nc4 65. Kxb7 Nxa3 66. Kxa6 Bd3+ 67. Ka7 Nb5+ 68. Rxb5 1-0

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.11.13"]
[Round "8"]
[White "Pietrzak, Wojciech"]
[Black "Szymczak, Rafal"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "1918"]
[BlackElo "2062"]
[PlyCount "58"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. c4 e6 14. 0-0 Bd6 15. d5 cxd5 16. cxd5 Nxd5 17. Nf5 0-0 18. Rac1 Qb8 19. Nxh6+ gxh6 20. Bxh6 Bf4 21. Bxf8 Bxc1 22. h6 Qxf8 23. h7+ Kh8 24. Rxc1 Rc8 25. Re1 Qg7 26. Re4 Rc1+ 27. Kh2 Nc5 28. Qd2 Nxe4 29. Qxc1 Kxh7 0-1

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.11.04"]
[Round "7"]
[White "Pietrzak, Wojciech"]
[Black "Szwaj, Jacek"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1918"]
[BlackElo "1948"]
[PlyCount "141"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. g4 d5 3. g5 Ne4 4. f3 Nd6 5. Nc3 e6 6. e4 dxe4 7. fxe4 Be7 8. Nf3 b6 9. Rg1 Bb7 10. Rg4 Nd7 11. Be3 0-0 12. Bd3 f5 13. gxf6 Nxf6 14. Rxg7+ Kxg7 15. Ng5 Bc8 16. e5 Nf5 17. exf6+ Rxf6 18. Qh5 h6 19. Nf7 Qe8 20. Bxf5 Qxf7 21. Qg4+ Kh8 22. Bd3 Bb7 23. d5 e5 24. 0-0-0 Rg8 25. Qh3 Bc8 26. Qh4 Rg4 27. Qe1 Qg7 28. Bd2 Rf8 29. Ne4 Bf5 30. Bc3 Bxe4 31. Bxe4 Bg5+ 32. Kb1 Bf4 33. Bf3 Rg5 34. h4 Rg3 35. Be4 Rg8 36. Qf2 Rg1 37. Be1 Qg4 38. Bf3 Qh3 39. Bc3 Rxd1+ 40. Bxd1 Qg3 41. Qe2 Qg7 42. Qh5 Qf6 43. Bg4 Bg3 44. b4 a5 45. a3 axb4 46. axb4 Bf4 47. Be6 Ra8 48. Kb2 c6 49. Kb3 Rd8 50. Qf3 cxd5 51. Bxd5 Qxh4 52. Qe4 Qf6 53. Bc4 h5 54. Bd3 Rd7 55. Qf3 Qe6+ 56. Bc4 Qf5 57. Qa8+ Kg7 58. Qg8+ Kh6 59. Be6 Qg5 60. Qxg5+ Kxg5 61. Bxd7 Kh4 62. Be1+ Bg3 63. Bxg3+ Kxg3 64. Bc6 Kf4 65. Kc3 e4 66. Kd4 e3 67. Kd3 h4 68. c4 h3 69. Bb7 h2 70. Bc6 b5 71. c5 1-0

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.10.30"]
[Round "6"]
[White "Choroszej, Aleksander"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "1949"]
[BlackElo "1918"]
[PlyCount "120"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 g6 6. Nc3 Qxb6 7. e4 d6 8. Be2 Bg7 9. h3 0-0 10. Nf3 Ne8 11. 0-0 Nc7 12. a4 Nd7 13. Nd2 a5 14. Nc4 Qb8 15. Ra3 Ba6 16. Rb3 Qa7 17. Na3 Bxc3 18. Rxc3 Rab8 19. Bxa6 Qxa6 20. b3 Rb4 21. Nc4 Nb6 22. Ba3 Nxc4 23. Bxb4 Nb2 24. Qc2 axb4 25. Re3 Nxa4 26. Ra1 Qb7 27. Rxa4 Nb5 28. Qc4 Rb8 29. Re1 Na3 30. Qa6 Qxa6 31. Rxa6 c4 32. bxc4 Nxc4 33. Rc6 Ne5 34. Rc2 Nd3 35. Rb1 Nc5 36. f3 b3 37. Rc4 Kg7 38. Kf1 Kf6 39. Ke2 Ke5 40. Ke3 g5 41. Rb2 h5 42. g3 g4 43. hxg4 hxg4 44. f4+ Kf6 45. Kd4 Rc8 46. e5+ Kf5 47. exd6 exd6 48. Rh2 Rb8 49. Rb2 Re8 50. Rxc5 Re4+ 51. Kc3 dxc5 52. Rxb3 Rd4 53. Rb7 f6 54. Rd7 Ke4 55. d6 Kf3 56. Rd8 Kxg3 57. f5 Kf4 58. d7 Kxf5 59. Kc2 Ke6 60. Rc8 Rxd7 0-1

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.10.20"]
[Round "5"]
[White "Pietrzak, Wojciech"]
[Black "Maj, Pawel"]
[Result "0-1"]
[ECO "B86"]
[WhiteElo "1918"]
[BlackElo "2078"]
[PlyCount "54"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[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 Nbd7 8. 0-0 Nc5 9. Qe2 Be7 10. f4 0-0 11. Kh1 Qc7 12. e5 Nfd7 13. exd6 Bxd6 14. Nxe6 fxe6 15. Bxe6+ Nxe6 16. Qxe6+ Kh8 17. Ne4 Bc5 18. Qd5 Qc6 19. Rd1 Qxd5 20. Rxd5 Re8 21. Be3 Bxe3 22. Nd6 Rf8 23. Nxc8 Raxc8 24. Rxd7 Rxc2 25. Rxb7 h6 26. g3 Rd8 27. Rb3 Re2 0-1

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.10.14"]
[Round "4"]
[White "Borowy, Cezary"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1884"]
[BlackElo "1918"]
[PlyCount "49"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[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 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 Bd7 10. Kb1 Qb8 11. h4 h5 12. Be2 Rc8 13. Rdg1 Ne5 14. Nd5 Nxd5 15. exd5 Nc4 16. Bxc4 Rxc4 17. g4 hxg4 18. fxg4 Qc8 19. h5 Bxg4 20. hxg6 fxg6 21. Qd3 Rxd4 22. Bxd4 Bf5 23. Rxg6 Bxg6 24. Qxg6 Qf8 25. Qh7+ 1-0

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.10.07"]
[Round "3"]
[White "Pietrzak, Wojciech"]
[Black "Liberadzki, Slawomir"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1918"]
[BlackElo "2011"]
[PlyCount "86"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 d6 7. Bd3 Bd7 8. 0-0 Bc6 9. Ng5 Be7 10. Qh5 g6 11. Qh6 Bf8 12. Qh3 Bg7 13. Nc3 dxe5 14. dxe5 Bxe5 15. Re1 Nd7 16. Nxe6 fxe6 17. Qxe6+ Qe7 18. Nxd5 Qxe6 19. Nc7+ Bxc7 20. Rxe6+ Kd8 21. Bg5+ Kc8 22. Rc1 a5 23. Be2 Kb8 24. Re7 h6 25. Be3 Nb6 26. Rg7 Nd5 27. Bc5 Nf4 28. Bf1 g5 29. Re1 Nh5 30. Rge7 a4 31. Bd4 Rd8 32. Bc3 Nf4 33. Rh7 Nd5 34. Bd4 Ba5 35. Be5+ Ka7 36. Rc1 Rac8 37. Rxh6 Re8 38. Bd4+ Bb6 39. Bg7 Re7 40. Bf6 Bxf2+ 41. Kxf2 Rf8 42. Kg3 Nxf6 43. h4 Re3+ 0-1

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.10.02"]
[Round "2"]
[White "Powalka, Michal"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1940"]
[BlackElo "1918"]
[PlyCount "79"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nc6 3. Nf3 f5 4. exf5 e4 5. Ng5 Nf6 6. d3 Qe7 7. Be2 exd3 8. Qxd3 d5 9. a3 Bxf5 10. Qxf5 Qxe2+ 11. Kxe2 Nd4+ 12. Kd3 Nxf5 13. Re1+ Kd7 14. Nf7 Rg8 15. Ne5+ Kd6 16. Nc3 a6 17. Bd2 c5 18. Nf7+ Kd7 19. Re5 c4+ 20. Ke2 Re8 21. Re1 Bd6 22. Nxd6 Kxd6 23. Kd1 Nd4 24. Nxd5 Rxe5 25. fxe5+ Kxd5 26. exf6 gxf6 27. g3 Nf3 28. Re7 h5 29. Rxb7 h4 30. Bf4 Nxh2 31. gxh4 Nf3 32. h5 Ke4 33. Bb8 Rd8+ 34. Kc1 Nd4 35. Re7+ Kf3 36. Bc7 Rd5 37. b4 cxb3 38. cxb3 Rxh5 39. Kb2 Rh2+ 40. Bxh2 1-0

[Event "Warsaw YMCA Autumn-A 161st"]
[Site "Warsaw"]
[Date "2015.09.29"]
[Round "1"]
[White "Pietrzak, Wojciech"]
[Black "Kielar, Maciej"]
[Result "0-1"]
[ECO "B37"]
[WhiteElo "1918"]
[BlackElo "2115"]
[PlyCount "44"]
[EventDate "2015.09.25"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. c4 Nc6 6. Nc2 d6 7. Be2 f5 8. exf5 Bxf5 9. Ne3 Nh6 10. Nc3 0-0 11. 0-0 Rc8 12. Bf3 Kh8 13. Ne2 e5 14. Bd5 Qd7 15. Ng3 Nd4 16. Nexf5 Nhxf5 17. Ne4 b5 18. cxb5 Qxb5 19. Nc3 Rxc3 20. bxc3 Ne2+ 21. Kh1 Nxc3 22. Qb3 Qxf1# 0-1

[Event "Warsaw Najdorf Memorial op-B 13th"]
[Site "Warsaw"]
[Date "2015.07.16"]
[Round "7"]
[White "Pietrzak, Wojciech"]
[Black "Kielar, Maciej"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "1907"]
[BlackElo "2128"]
[PlyCount "72"]
[EventDate "2015.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. b3 c5 2. Bb2 Nc6 3. f4 d5 4. e3 Nf6 5. d3 g6 6. Nd2 Bg7 7. Qe2 d4 8. Ne4 Nxe4 9. dxe4 Qa5+ 10. Kd1 Bg4 11. Nf3 0-0 12. Qb5 Qc7 13. Qxc5 Rfd8 14. Bd3 dxe3 15. Bxg7 Qxf4 16. Ke2 Kxg7 17. Qxe3 Bxf3+ 18. gxf3 Nd4+ 19. Kf2 Qh4+ 20. Kg2 Rac8 21. Rac1 Rc3 22. Qd2 Rc5 23. Rhf1 Rh5 24. Kh1 e5 25. f4 Ne6 26. f5 Nf4 27. fxg6 hxg6 28. Rf2 Nxd3 29. cxd3 Rxd3 30. Qe2 Rd7 31. Rcf1 Rh8 32. Qb5 Qxe4+ 33. Kg1 Rh4 34. Rg2 Rc7 35. Qe8 Rf4 36. Rd1 Qd4+ 0-1

[Event "Warsaw Najdorf Memorial op-B 13th"]
[Site "Warsaw"]
[Date "2015.07.14"]
[Round "5"]
[White "Szymczak, Rafal"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A02"]
[WhiteElo "2059"]
[BlackElo "1907"]
[PlyCount "117"]
[EventDate "2015.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. f4 c5 2. Nf3 g6 3. e3 Bg7 4. d4 cxd4 5. exd4 e6 6. Bd3 Ne7 7. 0-0 b6 8. Nbd2 Ba6 9. Bxa6 Nxa6 10. c3 Nc7 11. Ne4 d6 12. Qa4+ b5 13. Qb4 Nc8 14. a4 a5 15. Qa3 f5 16. Nf2 Qd7 17. Re1 bxa4 18. Ng5 0-0 19. Qxa4 Qxa4 20. Rxa4 Nb6 21. Ra1 Rfe8 22. Nd3 h6 23. Nf3 Ncd5 24. g3 Kf7 25. Be3 Nc4 26. Bf2 Reb8 27. Ra2 Rb3 28. Re2 Nf6 29. Nc1 Rb7 30. b3 Nb6 31. c4 a4 32. c5 axb3 33. Rxa8 Nxa8 34. Rb2 dxc5 35. dxc5 Rb5 36. Ne5+ Ke8 37. Rxb3 Nc7 38. Rxb5 Nxb5 39. Nxg6 Ng4 40. Nd3 Nxf2 41. Kxf2 Kd7 42. Nge5+ Kc7 43. Kg2 Nd4 44. Kh3 Bf6 45. g4 Ne2 46. Nf7 Bd4 47. gxf5 exf5 48. Nxh6 Kc6 49. Nxf5 Nxf4+ 50. Nxf4 Bxc5 51. Kg4 Kd7 52. Kg5 Ke8 53. Kg6 Bg1 54. h4 Bf2 55. h5 Kf8 56. h6 Be1 57. Ne6+ Kg8 58. h7+ Kh8 59. Ng5 1-0

[Event "Warsaw Najdorf Memorial op-B 13th"]
[Site "Warsaw"]
[Date "2015.07.13"]
[Round "4"]
[White "Pietrzak, Wojciech"]
[Black "Grzelak, Artur"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1907"]
[BlackElo "2135"]
[PlyCount "82"]
[EventDate "2015.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 b5 6. Bd3 Bb7 7. f3 Nd7 8. Nd1 c5 9. c3 Rc8 10. Ne2 Nb6 11. b3 Nf6 12. 0-0 0-0 13. Bh6 Nbd7 14. Nf2 Qb6 15. Kh1 b4 16. Bxg7 Kxg7 17. cxb4 cxd4 18. f4 e5 19. f5 d5 20. Ng3 Rc3 21. exd5 Bxd5 22. Nfe4 Nxe4 23. Bxe4 Rxg3 24. Bxd5 Rc3 25. Rf3 Qxb4 26. Rh3 Kh8 27. Rf1 Rxb3 28. Qh6 Rxh3 29. Qxh3 Qd6 30. Qf3 Nf6 31. Be4 Kg7 32. h4 Rc8 33. fxg6 fxg6 34. h5 Rf8 35. h6+ Kxh6 36. Qh3+ Kg7 37. Rb1 Nxe4 38. Rb7+ Rf7 39. Rxf7+ Kxf7 40. Qxh7+ Kf6 41. Qh8+ Kg5 0-1

[Event "Warsaw Najdorf Memorial op-B 13th"]
[Site "Warsaw"]
[Date "2015.07.12"]
[Round "3"]
[White "Migala, Andrzej"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2079"]
[BlackElo "1907"]
[PlyCount "68"]
[EventDate "2015.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 f6 7. 0-0 fxe5 8. Nxe5 Nxe5 9. dxe5 Qc7 10. Re1 Ne7 11. Bf4 0-0-0 12. Bf1 h6 13. a3 g5 14. Bg3 Nf5 15. Nd2 Be7 16. Bd3 Nxg3 17. hxg3 c4 18. Bc2 Bc5 19. Nf3 Rdf8 20. Nd4 h5 21. b4 cxb3 22. Bxb3 h4 23. Qg4 hxg3 24. Qxg3 Rf4 25. Qxg5 Rfh4 26. g3 R4h5 27. Qg7 Kb8 28. Rad1 Bxd4 29. cxd4 Rh1+ 30. Kg2 R8h2+ 31. Kf3 Qc3+ 32. Re3 Qb2 33. Kg4 Qxf2 34. Rf3 Rh4+ 0-1

[Event "Warsaw Najdorf Memorial op-B 13th"]
[Site "Warsaw"]
[Date "2015.07.11"]
[Round "2"]
[White "Pietrzak, Wojciech"]
[Black "Smolak, Michal"]
[Result "1/2-1/2"]
[ECO "B81"]
[WhiteElo "1907"]
[BlackElo "2056"]
[PlyCount "63"]
[EventDate "2015.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 167 Extra"]
[Source "ChessBase"]
[SourceDate "2015.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2015.09.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. Be3 Be7 8. g4 Nc6 9. Bg2 Bd7 10. Qe2 0-0 11. 0-0 Nxd4 12. Bxd4 Bc6 13. Rad1 Qc7 14. Qe3 b5 15. e5 dxe5 16. Bxe5 Qb7 17. Qg3 Bxg2 18. Qxg2 Qxg2+ 19. Kxg2 Rac8 20. a3 Rfd8 21. Rxd8+ Rxd8 22. Rd1 Rc8 23. g5 Ne8 24. Ne4 f5 25. gxf6 gxf6 26. Rd7 Kf8 27. Bc3 f5 28. Nd2 Bxa3 29. Rxh7 Be7 30. Rh8+ Kf7 31. Rh7+ Kf8 32. Rh8+ 1/2-1/2

[Event "Warsaw Najdorf Memorial op-B 12th"]
[Site "Warsaw"]
[Date "2014.07.20"]
[Round "7"]
[White "Pietrzak, Wojciech"]
[Black "Guo, Emma"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1916"]
[BlackElo "1997"]
[PlyCount "82"]
[EventDate "2014.07.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d3 Nf6 4. c3 d6 5. h3 Be7 6. Be2 0-0 7. Nbd2 Ne8 8. g4 d5 9. Qc2 Be6 10. Nf1 Nd6 11. Ng3 d4 12. Bd2 dxc3 13. Bxc3 Nb5 14. Bxe5 Nxe5 15. Nxe5 Nd4 16. Qd1 Bb4+ 17. Kf1 Qf6 18. Nc4 Rad8 19. Ne3 Bc5 20. Ngf5 g6 21. g5 Qe5 22. Ng4 Qf4 23. Nfh6+ Kh8 24. Qc1 Qd6 25. b4 Bxb4 26. Qb2 Ba3 27. Qc3 Qc5 28. Qxc5 Bxc5 29. Nf6 Rd6 30. Bg4 Nc6 31. Bxe6 fxe6 32. h4 Bd4 33. Rb1 Bxf6 34. gxf6 b6 35. h5 gxh5 36. Rg1 Ne5 37. Rg5 Ng6 38. Ke2 e5 39. f4 Nxf4+ 40. Ke3 Rxd3+ 41. Kf2 Nh3+ 0-1

[Event "Warsaw Najdorf Memorial op-B 12th"]
[Site "Warsaw"]
[Date "2014.07.18"]
[Round "5"]
[White "Rodriguez Garcia, Manuel Francisco"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2160"]
[BlackElo "1916"]
[PlyCount "69"]
[EventDate "2014.07.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. Bg5 cxd4 10. Nxd4 h6 11. Bf4 Re8 12. Rc1 g5 13. Be3 Bf8 14. Nxc6 bxc6 15. Na4 Bd7 16. Nc5 Bg4 17. h3 Bh5 18. Re1 Rb8 19. Bd4 Rb4 20. g4 Bg6 21. a3 Rb8 22. Bxf6 Qxf6 23. Nd7 Qxb2 24. Nxb8 Rxb8 25. Rxc6 d4 26. Qc1 Bxa3 27. Qc4 Kg7 28. Rd1 d3 29. exd3 Qe2 30. Qc3+ Kh7 31. Re1 Qxd3 32. Qxd3 Bxd3 33. Re3 Rb1+ 34. Kh2 Rd1 35. Rxd3 1-0

[Event "Warsaw Najdorf Memorial op-B 12th"]
[Site "Warsaw"]
[Date "2014.07.15"]
[Round "2"]
[White "Pietrzak, Wojciech"]
[Black "Malec, Sebastian"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1916"]
[BlackElo "2165"]
[PlyCount "118"]
[EventDate "2014.07.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 e5 6. Be3 cxd4 7. cxd4 Bb4+ 8. Nc3 Bg4 9. Nd2 Bxc3 10. Qxg4 Bxd2+ 11. Bxd2 Qxd4 12. Qxg7 0-0-0 13. Bc3 Qe4+ 14. Be2 Nge7 15. Qg4+ Qxg4 16. Bxg4+ f5 17. Bh3 Rhf8 18. Rd1 Nd5 19. Bd2 Kb8 20. 0-0 e4 21. Bg5 Nde7 22. g3 Rxd1 23. Rxd1 Ng6 24. Rd7 Nce5 25. Rd8+ Rxd8 26. Bxd8 Ng4 27. Bg5 Kc7 28. Bf1 Kc6 29. h3 N4e5 30. Be3 a6 31. Be2 Kd5 32. b3 b5 33. Kf1 Nf3 34. a4 Kc6 35. axb5+ axb5 36. Bxf3 exf3 37. Ke1 Kd5 38. Kd2 Ne5 39. Bf4 Nc6 40. Kc3 Ke4 41. Bc7 Ne7 42. Bd6 Nd5+ 43. Kd2 h5 44. h4 Nf6 45. Bc5 f4 46. gxf4 Nd5 47. Bd6 Nxf4 48. Kc3 Nd5+ 49. Kd2 Nf6 50. Be7 Ng4 51. Bc5 Ne5 52. Kc3 Ng6 53. Kb4 Nxh4 54. Kxb5 Nf5 55. Kc6 h4 56. Bb6 Nd4+ 57. Kd7 Nxb3 58. Ke6 Nd4+ 59. Kf6 Nb5 0-1

[Event "CP-2013-P-00030"]
[Site "LSS email"]
[Date "2013.09.30"]
[Round "?"]
[White "De Oliveira, Marcio Barbosa"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2191"]
[BlackElo "1484"]
[PlyCount "25"]
[EventDate "2013.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 Bd7 10. g4 Rb8 11. h4 h5 12. gxh5 Nxh5 13. Rg1 1-0

[Event "CP-2013-P-00030"]
[Site "LSS email"]
[Date "2013.09.30"]
[Round "?"]
[White "Moskalenko, Eduard"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2136"]
[BlackElo "1484"]
[PlyCount "25"]
[EventDate "2013.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]

1. d4 c5 2. d5 Nf6 3. c4 b5 4. Nf3 g6 5. cxb5 a6 6. e3 Bg7 7. Nc3 d6 8. e4 Nfd7 9. a4 0-0 10. Bd2 axb5 11. axb5 Rxa1 12. Qxa1 Bb7 13. Qa2 1-0

[Event "CP-2013-P-00030"]
[Site "LSS email"]
[Date "2013.09.30"]
[Round "?"]
[White "Pietrzak, Wojciech"]
[Black "Haug, Ulrich"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1484"]
[BlackElo "2399"]
[PlyCount "26"]
[EventDate "2013.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 Rc8 7. 0-0 a6 8. Be3 cxd4 9. cxd4 Nge7 10. Nc3 Nf5 11. Qd2 Be7 12. Rac1 0-0 13. Nb1 Nxe3 0-1

[Event "CP-2013-P-00030"]
[Site "LSS email"]
[Date "2013.09.30"]
[Round "?"]
[White "Pietrzak, Wojciech"]
[Black "Hrubaru, Mircea"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1484"]
[BlackElo "1700"]
[PlyCount "24"]
[EventDate "2013.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. a4 a6 8. Na3 Be6 9. Bc4 Be7 10. Bd5 0-0 11. 0-0 Rc8 12. Be3 Qc7 0-1

[Event "CP-2013-P-00030"]
[Site "LSS email"]
[Date "2013.09.30"]
[Round "?"]
[White "Rusak, Alexandr Victorovic"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "B77"]
[WhiteElo "1804"]
[BlackElo "1484"]
[PlyCount "25"]
[EventDate "2013.10.01"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2015"]
[Source "ChessBase"]
[SourceDate "2015.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. Bc4 Bd7 10. 0-0-0 Rb8 11. Bb3 Na5 12. Bh6 b5 13. Bxg7 1-0

[Event "SC-2013-0-00196"]
[Site "LSS email"]
[Date "2013.09.23"]
[Round "?"]
[White "Dogan, Ahmet"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1735"]
[BlackElo "1613"]
[PlyCount "29"]
[EventDate "2013.08.05"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 d6 8. Bxa6 Nxa6 9. Nf3 Nd7 10. 0-0 Bg7 11. Bf4 0-0 12. Qd2 Qa5 13. Rfe1 Rfb8 14. e5 c4 15. Nd4 1-0

[Event "SC-2013-0-00196"]
[Site "LSS email"]
[Date "2013.09.23"]
[Round "?"]
[White "Pietrzak, Wojciech"]
[Black "Korinek, Jaroslav"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1480"]
[BlackElo "1599"]
[PlyCount "34"]
[EventDate "2013.08.05"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Telechess CBM 167"]
[Source "ChessBase"]
[SourceDate "2015.07.13"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.13"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h3 c6 6. Bf3 0-0 7. Nge2 c5 8. dxc5 dxc5 9. Be3 Qb6 10. 0-0 Rd8 11. Qc1 Nc6 12. Nf4 Nd4 13. Bd1 Qd6 14. Nd3 Ne8 15. e5 Qc7 16. f4 Bf5 17. a4 a6 0-1

[Event "SC-2013-0-00196"]
[Site "LSS email"]
[Date "2013.09.23"]
[Round "?"]
[White "Schulz, Hans Juergen"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "B77"]
[WhiteElo "1644"]
[BlackElo "1480"]
[PlyCount "39"]
[EventDate "2013.08.05"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Telechess CBM 167"]
[Source "ChessBase"]
[SourceDate "2015.07.13"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. Bc4 Bd7 10. Bb3 Nxd4 11. Bxd4 b5 12. h4 a5 13. a4 bxa4 14. Nxa4 e5 15. Bb6 Qb8 16. Be3 h5 17. Nb6 Ra6 18. Nxd7 Nxd7 19. 0-0 a4 20. Qd3 1-0

[Event "SC-2013-0-00196"]
[Site "LSS email"]
[Date "2013.09.22"]
[Round "?"]
[White "Pietrzak, Wojciech"]
[Black "Brayman, Neal Zvi"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1480"]
[BlackElo "1736"]
[PlyCount "38"]
[EventDate "2013.08.05"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Telechess CBM 167"]
[Source "ChessBase"]
[SourceDate "2015.07.13"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Nh6 8. Nc3 Nf5 9. Na4 Qa5+ 10. Bd2 Bb4 11. Bc3 Bxc3+ 12. Nxc3 Qb6 13. Bb5 Bd7 14. Bxc6 Bxc6 15. Qd2 Bb5 16. Nxb5 Qxb5 17. Rc1 0-0 18. g4 Ne7 19. Rc5 Qa6 0-1

[Event "SC-2013-0-00196"]
[Site "LSS email"]
[Date "2013.09.21"]
[Round "?"]
[White "Eichner, Dieter"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "1764"]
[BlackElo "1480"]
[PlyCount "41"]
[EventDate "2013.08.05"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Telechess CBM 167"]
[Source "ChessBase"]
[SourceDate "2015.07.13"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.13"]
[SourceQuality "1"]

1. d4 c5 2. d5 Nf6 3. Nc3 b5 4. Nxb5 a6 5. Nc3 d6 6. e4 g6 7. Nf3 Nbd7 8. Qd2 Bg7 9. Bd3 0-0 10. 0-0 Bb7 11. b3 Nb6 12. a4 c4 13. bxc4 Qc7 14. Rb1 Nfd7 15. Rb4 a5 16. Nb5 Qc8 17. Rb1 Nxa4 18. Qe3 Nac5 19. Bb2 Nxd3 20. cxd3 Bxb2 21. Rxb2 1-0

[Event "SC-2013-0-00196"]
[Site "LSS email"]
[Date "2013.09.17"]
[Round "?"]
[White "Pietrzak, Wojciech"]
[Black "Lombart, Philippe"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1480"]
[BlackElo "1681"]
[PlyCount "40"]
[EventDate "2013.08.05"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "GER"]
[SourceTitle "Telechess CBM 167"]
[Source "ChessBase"]
[SourceDate "2015.07.13"]
[SourceVersion "1"]
[SourceVersionDate "2015.07.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. 0-0 Bc5 6. c3 d6 7. b4 Bb6 8. h3 0-0 9. a4 a5 10. b5 Ne7 11. Be3 c6 12. Bxb6 Qxb6 13. Na3 Bd7 14. Rb1 Qc7 15. Ba2 d5 16. Re1 Rfe8 17. c4 dxe4 18. dxe4 Rad8 19. b6 Qc8 20. Qb3 Ng6 0-1

[Event "Warsaw Najdorf Memorial op-B 11th"]
[Site "Warsaw"]
[Date "2013.08.12"]
[Round "8"]
[White "Pietrzak, Wojciech"]
[Black "Woloszyn, Piotr"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1915"]
[BlackElo "1504"]
[PlyCount "65"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4 Qe5+ 5. Be2 c6 6. Nf3 Qc7 7. Bb2 Bg4 8. 0-0 e6 9. b5 a6 10. bxc6 Nxc6 11. h3 Bh5 12. d4 0-0-0 13. Na4 Nf6 14. c4 e5 15. d5 e4 16. Nd4 Bxe2 17. Qxe2 Ne5 18. Nb5 axb5 19. cxb5 Qe7 20. Rac1+ Kb8 21. d6 Qe8 22. Qd2 Qxb5 23. Rc5 Nc4 24. Qc2 Qa6 25. Rxc4 Bxd6 26. Rc1 Bf4 27. Nc5 Qb5 28. Rb1 Qc6 29. Nxb7 Qxb7 30. Be5+ Bxe5 31. Rxb7+ Kxb7 32. Rb4+ Ka6 33. Qa4# 1-0

[Event "Warsaw Najdorf Memorial op-B 11th"]
[Site "Warsaw"]
[Date "2013.08.12"]
[Round "9"]
[White "Traczyk, Pawel"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "D32"]
[WhiteElo "1753"]
[BlackElo "1915"]
[PlyCount "74"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. e3 Nc6 5. cxd5 exd5 6. Nc3 Nf6 7. Bb5 cxd4 8. Nxd4 Bd7 9. 0-0 Be7 10. b3 Qc7 11. Bb2 Rd8 12. Rc1 0-0 13. Bxc6 bxc6 14. Nf3 Bf5 15. Nb5 Qb6 16. Nbd4 Bd7 17. Ne5 c5 18. Nxd7 Nxd7 19. Nf5 Bf6 20. Bxf6 Nxf6 21. Qf3 Rfe8 22. Rfd1 Ne4 23. Qg4 g6 24. Ng3 h5 25. Qf4 Kg7 26. Nxe4 Rxe4 27. Qf3 Re5 28. h3 Qa5 29. Rc2 d4 30. Qf4 Rf5 31. Qe4 dxe3 32. Rxd8 Qe1+ 33. Kh2 exf2 34. Re2 Qg1+ 35. Kg3 Rg5+ 36. Kf4 f1Q+ 37. Kxg5 Qf6# 0-1

[Event "Warsaw Najdorf Memorial op-B 11th"]
[Site "Warsaw"]
[Date "2013.08.11"]
[Round "7"]
[White "Kaminski, Jan"]
[Black "Pietrzak, Wojciech"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "1757"]
[BlackElo "1915"]
[PlyCount "43"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 Nxd4 10. Bxd4 Be6 11. Kb1 Qa5 12. Nd5 Qxd2 13. Nxe7+ Kh8 14. Rxd2 Rfe8 15. Bxf6 Bxf6 16. Nd5 Bg5 17. Rd1 Rac8 18. Bb5 Red8 19. h4 Bxd5 20. hxg5 Bc6 21. Bxc6 bxc6 22. Rd4 1/2-1/2

[Event "Warsaw Najdorf Memorial op-B 11th"]
[Site "Warsaw"]
[Date "2013.08.09"]
[Round "6"]
[White "Pietrzak, Wojciech"]
[Black "Kacprzak, Karol"]
[Result "1/2-1/2"]
[ECO "D53"]
[WhiteElo "1915"]
[BlackElo "1780"]
[PlyCount "92"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. Bg5 0-0 8. Rc1 dxc4 9. Bxc4 Nc6 10. 0-0 Nb4 11. Qb3 Nbd5 12. Bxf6 Nxf6 13. d5 exd5 14. Nxd5 Nxd5 15. Bxd5 Qb6 16. Qxb6 axb6 17. Rc7 Bd6 18. Bxb7 Bxc7 19. Bxa8 Ba6 20. Be4 Bxf1 21. Kxf1 Rd8 22. Ke2 Bf4 23. a4 h5 24. g3 Bd6 25. Ne1 Re8 26. Kf3 f5 27. Bd5+ Kf8 28. Nd3 Rd8 29. Bc4 Ra8 30. b3 Ke7 31. Nc1 Kf6 32. Na2 g5 33. Nc3 Bc5 34. Nd5+ Ke5 35. Ke2 Rd8 36. f4+ gxf4 37. Nxf4 Rd7 38. h4 Rh7 39. Kf3 Bd6 40. Ne6 Kf6 41. Nf4 Bxf4 42. Kxf4 Re7 43. Bd5 Re1 44. Bf3 Kg6 45. Bd5 Kf6 46. Bf3 Kg6 1/2-1/2

[Event "Warsaw Najdorf Memorial op-B 11th"]
[Site "Warsaw"]
[Date "2013.08.08"]
[Round "5"]
[White "Rzeszowski, Dominik"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1644"]
[BlackElo "1915"]
[PlyCount "84"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. a4 Nc6 4. f4 e6 5. Nf3 d5 6. d3 Nf6 7. e5 Ng8 8. g3 h5 9. h3 Nge7 10. Nh4 Nd4 11. Bg2 Nef5 12. Nxf5 Nxf5 13. Ne2 Rh6 14. Rg1 Bd7 15. c4 Bc6 16. Qb3 Qd7 17. Bd2 Rg6 18. Bf3 dxc4 19. dxc4 Bxf3 20. Qxf3 0-0-0 21. Ba5 Qd3 22. Qxd3 Rxd3 23. Kf2 Be7 24. Rad1 Rd7 25. Bb6 f6 26. exf6 Rxf6 27. Nc3 h4 28. Ne4 hxg3+ 29. Nxg3 Nd4 30. Ne2 e5 31. Rxg7 Rxb6 32. Rg8+ Kc7 33. Nxd4 Bh4+ 34. Kf3 exd4 35. Rg4 Rb3+ 36. Ke4 Re3+ 37. Kf5 Rf7+ 38. Kg6 Rf6+ 39. Kh5 Bf2 40. Rg7+ Kc6 41. Rh1 d3 42. Kg5 Rd6 0-1

[Event "Warsaw Najdorf Memorial op-B 11th"]
[Site "Warsaw"]
[Date "2013.08.07"]
[Round "3"]
[White "Kojro, Adam"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "B20"]
[BlackElo "1915"]
[PlyCount "59"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 a6 3. g3 d5 4. Bg2 dxe4 5. Bxe4 Nf6 6. Bg2 Ra7 7. d4 e6 8. Bf4 Nc6 9. c3 cxd4 10. cxd4 Nd5 11. Bd2 Be7 12. Nbc3 Bf6 13. 0-0 0-0 14. Be3 Nce7 15. Qb3 b5 16. a4 bxa4 17. Rxa4 Rd7 18. Ne4 Nxe3 19. Nxf6+ gxf6 20. fxe3 Nd5 21. e4 Rb7 22. Qf3 Nb6 23. Ra5 e5 24. dxe5 Nd7 25. exf6 Qb6+ 26. Kh1 Nc5 27. Qh5 Ne6 28. Qg4+ Kh8 29. Rh5 Qxb2 30. Qh4 1-0

[Event "Warsaw Najdorf Memorial op-B 11th"]
[Site "Warsaw"]
[Date "2013.08.06"]
[Round "2"]
[White "Slomski, Arkadiusz"]
[Black "Pietrzak, Wojciech"]
[Result "1/2-1/2"]
[ECO "A02"]
[WhiteElo "1696"]
[BlackElo "1915"]
[PlyCount "86"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5 5. g3 g4 6. Nh4 Be7 7. Ng2 h5 8. d4 h4 9. Bf4 Qd5 10. Rg1 hxg3 11. Bxg3 c5 12. Nc3 Qxd4 13. Qxd4 cxd4 14. Nb5 Na6 15. Nxd4 Bc5 16. 0-0-0 Be6 17. e3 Bxa2 18. Bb5+ Kf8 19. Rgf1 Rh6 20. Rf5 Be7 21. Rdf1 Nf6 22. b3 Ba3+ 23. Kd1 Be7 24. Bxa6 bxa6 25. Ra5 Ne4 26. Kc1 Nc3 27. Kb2 Bb4 28. Rxa2 Nxa2 29. Kxa2 Bc3 30. Nf4 Rc8 31. Nfe2 Bd2 32. Bf4 Rh3 33. Bd6+ Ke8 34. e4 Ba5 35. Bg3 Bc7 36. e5 Rh5 37. Rf4 Rg5 38. Re4 Kf8 39. Rf4 Rxe5 40. Rxg4 Re3 41. Rh4 Kg8 42. Rg4+ Kf8 43. Rh4 Kg8 1/2-1/2

[Event "Warsaw Najdorf Memorial op-B 11th"]
[Site "Warsaw"]
[Date "2013.08.05"]
[Round "1"]
[White "Pietrzak, Wojciech"]
[Black "Borowski, Marek"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1915"]
[BlackElo "1527"]
[PlyCount "59"]
[EventDate "2013.08.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. cxd5 exd5 4. Qb3 dxe4 5. Bc4 Qe7 6. Nc3 Nf6 7. d3 exd3+ 8. Kf1 Ne4 9. Nxe4 Qxe4 10. Qa4+ Kd8 11. Bg5+ f6 12. Re1 b5 13. Bxb5 Qxe1+ 14. Kxe1 fxg5 15. Qe4 c6 16. Qxd3+ Kc7 17. Qc3 a5 18. a3 Bd7 19. Ne2 Kb6 20. Bc4 Bc8 21. Kd2 Na6 22. Bxa6 Bxa6 23. Rc1 Rd8+ 24. Ke1 Bb5 25. Qe3+ Kb7 26. Nd4 Rd5 27. Nxb5 Rxb5 28. Qd3 Bc5 29. Qe4 Rd8 30. Rxc5 1-0

[Event "Warsaw YMCA Spring 122nd"]
[Site "Warsaw"]
[Date "2013.05.21"]
[Round "7"]
[White "Pietrzak, Wojciech"]
[Black "Bielecki, Pawel"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1886"]
[BlackElo "1983"]
[PlyCount "67"]
[EventDate "2013.04.11"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 0-0 8. 0-0 Ne5 9. Be2 d5 10. f4 Nc4 11. Bxc4 dxc4 12. Nd2 Rd8 13. Qh5 Bb6 14. Nxc4 Nc6 15. Nxb6 axb6 16. f5 Re8 17. Bg5 Qe5 18. Nxc6 bxc6 19. Qh4 f6 20. Bf4 Qe7 21. Qg3 Ra4 22. b4 c5 23. Bxc7 cxb4 24. Bd6 Qf7 25. cxb4 Rxa2 26. Rxa2 Qxa2 27. Qc3 Bb7 28. Ra1 Qe2 29. Re1 Qa2 30. Qd4 Rxe4 31. Rxe4 Qb1+ 32. Kf2 Qxe4 33. Qxe4 Bxe4 34. g4 1/2-1/2

[Event "Warsaw YMCA Spring 122nd"]
[Site "Warsaw"]
[Date "2013.05.06"]
[Round "10"]
[White "Potocki, Karol"]
[Black "Pietrzak, Wojciech"]
[Result "1-0"]
[ECO "D33"]
[WhiteElo "1874"]
[BlackElo "1886"]
[PlyCount "49"]
[EventDate "2013.04.11"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 c4 6. Bg2 Bb4+ 7. Nc3 Nc6 8. 0-0 Nge7 9. a3 Ba5 10. Bf4 0-0 11. b4 cxb3 12. Qxb3 Bf5 13. Rfc1 Bb6 14. Rd1 Na5 15. Qa2 Rc8 16. Rac1 Be6 17. Na4 Rxc1 18. Rxc1 Nec6 19. e3 Nc4 20. Nxb6 axb6 21. h3 Qe7 22. Ng5 Ra8 23. Rxc4 Rxa3 24. Qc2 dxc4 25. Qxh7+ 1-0

[Event "Warsaw YMCA Spring 122nd"]
[Site "Warsaw"]
[Date "2013.05.02"]
[Round "4"]
[White "Pietrzak, Wojciech"]
[Black "Melchers, Damian"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1886"]
[BlackElo "1964"]
[PlyCount "73"]
[EventDate "2013.04.11"]
[EventType "tourn"]
[EventRounds "13"]
[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 e6 5. c3 Nf6 6. Bd3 Bc5 7. Be3 Qb6 8. Na3 Bxd4 9. Nc4 Bxc3+ 10. bxc3 Qc7 11. Bc5 Ne5 12. Nd6+ Kd8 13. Bb4 a5 14. Nb5 Qc6 15. Ba3 Nxd3+ 16. Qxd3 Qxe4+ 17. Qxe4 Nxe4 18. f3 Nf6 19. Nd6 Kc7 20. Nxf7 Rg8 21. Bd6+ Kc6 22. Rd1 b6 23. Ne5+ Kb7 24. Rb1 Ne8 25. Bc5 d6 26. Rxb6+ Kc7 27. Rc6+ Kd8 28. Bxd6 Nxd6 29. Rxd6+ Ke7 30. Rd4 Kf6 31. f4 Bb7 32. Rd7 Kf5 33. Rxb7 Kxf4 34. Rb5 Rgc8 35. 0-0+ Ke4 36. Re1+ Kf4 37. Nd3+ 1-0

[Event "Warsaw YMCA Spring 122nd"]
[Site "Warsaw"]
[Date "2013.04.25"]
[Round "3"]
[White "Rozowski, Marcin"]
[Black "Pietrzak, Wojciech"]
[Result "0-1"]
[ECO "B28"]
[WhiteElo "1883"]
[BlackElo "1886"]
[PlyCount "86"]
[EventDate "2013.04.11"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. Qxd4 Qxd4 7. Nxd4 e5 8. Nf3 Nc6 9. Bc4 f6 10. Be3 b5 11. Be2 Be6 12. 0-0 Nge7 13. a4 b4 14. Bc5 Nd5 15. Bxf8 Rxf8 16. Rd1 Nf4 17. Bf1 Ke7 18. Nbd2 bxc3 19. bxc3 Na5 20. Rab1 Nd5 21. Rdc1 Bf5 22. Rb2 Nf4 23. Nc4 Nxc4 24. Bxc4 Kd6 25. Rb7 g5 26. Bf1 Be4 27. Rb6+ Kc5 28. Rxa6 Rxa6 29. Bxa6 Nxg2 30. Kxg2 g4 31. Kg3 gxf3 32. Bf1 Rg8+ 33. Kh4 Rg1 34. Rd1 Bc2 35. Rd2 Bxa4 36. Bd3 Rg2 37. h3 Rg7 38. Bf5 Bc6 39. Bg4 Rg5 40. Rd8 Be4 41. Rf8 Rg6 42. Bh5 Rg2 43. Rxf6 Rxf2 0-1

[Event "Warsaw YMCA Spring 122nd"]
[Site "Warsaw"]
[Date "2013.04.18"]
[Round "2"]
[White "Pietrzak, Wojciech"]
[Black "Sujkowski, Pawel"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "1886"]
[BlackElo "1956"]
[PlyCount "81"]
[EventDate "2013.04.11"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Bg5 Ne4 8. cxd5 Nxg5 9. Nxg5 0-0 10. h4 h6 11. Nf3 Bg4 12. Bc4 Nd7 13. Qd3 Rc8 14. Bb3 Re8 15. Kf1 Qc7 16. Re1 Qf4 17. Ne2 Qd6 18. Ng3 Bxf3 19. gxf3 Qb4 20. h5 Qxd4 21. Qxd4 Bxd4 22. hxg6 fxg6 23. d6+ Kg7 24. Ba4 e5 25. Bxd7 Rc2 26. Ne4 Rd8 27. Ba4 Rxb2 28. Re2 Rb4 29. Bb3 a5 30. Rc2 Bb6 31. Rc7+ Bxc7 32. dxc7 Rc8 33. Nd6 Rxc7 34. Ne8+ Kf8 35. Nxc7 a4 36. Bd5 Rb1+ 37. Kg2 Rxh1 38. Kxh1 b6 39. Bc6 a3 40. Nd5 Kf7 41. Nxb6 1-0

