[Event "Mazowiec-chT op 1718"]
[Site "Warsaw"]
[Date "2018.02.18"]
[Round "7.4"]
[White "Potkanski, Grzegorz"]
[Black "Grochulski, Krzysztof"]
[Result "0-1"]
[ECO "D47"]
[WhiteElo "1161"]
[BlackElo "1915"]
[PlyCount "86"]
[EventDate "2017.12.03"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Bd3 dxc4 6. Bxc4 b5 7. Bd3 Bb7 8. Nf3 a6 9. a3 Nbd7 10. b4 a5 11. bxa5 Qxa5 12. Bb2 Nd5 13. Qc2 Bd6 14. 0-0 h6 15. Ne4 Be7 16. Ng3 0-0 17. Nh5 Qc7 18. Rfc1 Rfc8 19. e4 Nf4 20. Nxf4 Qxf4 21. Qd2 Qg4 22. Qc3 c5 23. h3 Qf4 24. d5 Nf6 25. Bxb5 exd5 26. exd5 Bxd5 27. Re1 Bf8 28. Bd3 Bxf3 29. gxf3 Bd6 30. Rad1 Qh2+ 31. Kf1 Re8 32. Be4 Rab8 33. Bc1 Qxh3+ 34. Ke2 Rxe4+ 35. Be3 Re6 36. Rh1 Qf5 37. Rdg1 Be5 38. Qc1 Rb2+ 39. Ke1 Bc3+ 40. Kf1 Rb1 41. Rxh6 Rxc1+ 42. Kg2 Rxe3 43. fxe3 Qg5+ 0-1

[Event "Mazowiec-chT op 1718"]
[Site "Warsaw"]
[Date "2018.02.04"]
[Round "5.16"]
[White "Potkanski, Grzegorz"]
[Black "Stefaniuk, Zbigniew"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "1161"]
[BlackElo "1120"]
[PlyCount "57"]
[EventDate "2017.12.03"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[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 Nc6 9. Bc4 0-0 10. 0-0 Bg4 11. e5 cxd4 12. cxd4 e6 13. h3 Bxf3 14. gxf3 Qh4 15. Kh2 Rad8 16. f4 Nxd4 17. Rg1 Nf5 18. Qg4 Qxg4 19. hxg4 Nxe3 20. fxe3 Rd2+ 21. Kg3 Rfd8 22. Rg2 Rxg2+ 23. Kxg2 Rd2+ 24. Kf3 Rc2 25. Bb3 Rc3 26. Rd1 Bf8 27. Ke4 Bc5 28. Rd3 Rxd3 29. Kxd3 1/2-1/2

[Event "Mazowiec-chT op 1718"]
[Site "Warsaw"]
[Date "2018.02.04"]
[Round "6.16"]
[White "Wasylewski, Marcin"]
[Black "Potkanski, Grzegorz"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1392"]
[BlackElo "1161"]
[PlyCount "53"]
[EventDate "2017.12.03"]
[EventType "team-swiss"]
[EventRounds "10"]
[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. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 b6 7. 0-0 Bb7 8. Re1 Be7 9. c3 0-0 10. Qc2 Rc8 11. Bg5 Nxe4 12. Bxe7 Qxe7 13. Bxe4 Bxe4 14. Qxe4 c5 15. d5 Rce8 16. dxe6 fxe6 17. Rad1 Nf6 18. Qc6 Nd5 19. Rxd5 exd5 20. Rxe7 Rxe7 21. Qxd5+ Kh8 22. Kf1 Rfe8 23. a4 Re2 24. Qb3 h6 25. Qb5 R2e7 26. a5 bxa5 27. Qxc5 1-0

[Event "Mazowiec-chT op 1718"]
[Site "Warsaw"]
[Date "2018.01.07"]
[Round "3.15"]
[White "Mankowski, Sebastian"]
[Black "Potkanski, Grzegorz"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1420"]
[BlackElo "1161"]
[PlyCount "75"]
[EventDate "2017.12.03"]
[EventType "team-swiss"]
[EventRounds "10"]
[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. e5 Nd7 4. Nf3 c5 5. c3 f6 6. Bd3 c4 7. Bc2 Qc7 8. Bf4 f5 9. Ba4 Rb8 10. Ng5 Qb6 11. Qe2 Ne7 12. Bc1 Ng6 13. Qh5 Be7 14. Nxh7 Kf7 15. Ng5+ Bxg5 16. Qxg5 Qa5 17. Bc2 Ne7 18. g4 g6 19. h4 Qd8 20. h5 Qg8 21. hxg6+ Nxg6 22. Rxh8 Qxh8 23. gxf5 Ngf8 24. Nd2 Nxe5 25. fxe6+ Kxe6 26. Qxe5+ Qxe5+ 27. dxe5 Kxe5 28. Nf3+ Kf6 29. Bf4 Ra8 30. Nd4 Bh3 31. 0-0-0 Re8 32. Be3 Nd7 33. Nb5 Re5 34. Bd4 a6 35. Nc7 Ke7 36. Bxe5 Nxe5 37. Nxd5+ Ke6 38. Nf4+ 1-0

[Event "Mazowiec-chT op 1718"]
[Site "Warsaw"]
[Date "2018.01.07"]
[Round "4.11"]
[White "Potkanski, Grzegorz"]
[Black "Syper, Mariusz"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "1161"]
[PlyCount "75"]
[EventDate "2017.12.03"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 e6 4. Nf3 Bb4 5. e3 a5 6. Bd2 Nc6 7. Bd3 Ne7 8. c5 c6 9. Na4 Bxd2+ 10. Qxd2 Nd7 11. Qc2 Ng6 12. 0-0 f5 13. Ne5 Ra7 14. Qd1 Ngxe5 15. dxe5 Nxe5 16. Qc2 g6 17. Rfe1 h5 18. f4 Ng4 19. h3 Qh4 20. hxg4 hxg4 21. Kf1 Qg3 22. Qf2 Rh1+ 23. Ke2 Qxf2+ 24. Kxf2 Rh5 25. Rh1 b5 26. cxb6 Rah7 27. Rxh5 gxh5 28. Rc1 Bb7 29. Nc5 h4 30. Nxe6 Rf7 31. Ng5 Rf6 32. Rh1 Bc8 33. Rxh4 c5 34. Bb5+ Ke7 35. Rh7+ Kd6 36. b7 Bxb7 37. Rxb7 Rf8 38. Rd7# 1-0

[Event "Mazowiec-chT op 1718"]
[Site "Warsaw"]
[Date "2017.12.03"]
[Round "1.8"]
[White "Bojarski, Maksymilian"]
[Black "Potkanski, Grzegorz"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "1161"]
[PlyCount "100"]
[EventDate "2017.12.03"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Nc3 a6 6. Bd3 Bg4 7. 0-0 Be7 8. h3 Be6 9. Re1 0-0 10. Bf4 c5 11. dxc5 Bxc5 12. a3 b5 13. Be5 Nbd7 14. Bd4 Qb6 15. Bxc5 Nxc5 16. Nd4 Nxd3 17. Qxd3 Rfe8 18. Nxe6 fxe6 19. Rad1 Rad8 20. Qd4 Qc7 21. Re5 Ne4 22. Rd3 Nxc3 23. Qxc3 Qxc3 24. Rxc3 Rd6 25. Kf1 Kf7 26. Ke2 Ke7 27. Rc7+ Rd7 28. Rxd7+ Kxd7 29. Ke3 Kd6 30. Kd4 Rf8 31. g3 Rxf2 32. Rg5 g6 33. Kd3 Rf5 34. Rxf5 gxf5 35. b4 e5 36. c3 h6 37. Ke3 Ke6 38. h4 Kf6 39. Kf3 Kg6 40. Ke3 Kh5 41. Kf3 f4 42. gxf4 exf4 43. Kxf4 Kxh4 44. Kf3 Kh3 45. Kf4 h5 46. Kf3 h4 47. Kf2 Kh2 48. Kf1 Kg3 49. Kg1 Kf3 50. Kh2 Ke3 0-1

[Event "Mazowiec-chT op 1718"]
[Site "Warsaw"]
[Date "2017.12.03"]
[Round "2.4"]
[White "Panuciak, Adam"]
[Black "Potkanski, Grzegorz"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1410"]
[BlackElo "1161"]
[PlyCount "91"]
[EventDate "2017.12.03"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nc6 3. e3 Bg4 4. d4 Nf6 5. Bd3 Ne4 6. 0-0 e6 7. Nbd2 f5 8. Qe1 a6 9. c3 Qd7 10. Ne5 Nxe5 11. fxe5 0-0-0 12. a4 g6 13. Nf3 h6 14. b4 Qc6 15. Bb2 Qd7 16. b5 a5 17. b6 cxb6 18. Bb5 Qf7 19. Nd2 g5 20. Qc1 Kb8 21. Qc2 Rc8 22. Nxe4 dxe4 23. Qxe4 fxe4 24. Rxf7 Bf5 25. d5 exd5 26. Rxf5 Bc5 27. Kf2 Rhf8 28. g4 h5 29. h3 hxg4 30. hxg4 Rh8 31. Ke2 Rh2+ 32. Rf2 Rxf2+ 33. Kxf2 Rf8+ 34. Ke2 Rf3 35. Bc1 Rg3 36. Bd7 Rg2+ 37. Kf1 Rg3 38. Be6 Bxe3 39. Bxe3 Rxe3 40. Bxd5 Rxc3 41. Bxe4 Re3 42. Re1 Rxe1+ 43. Kxe1 Kc7 44. Kd2 Kd7 45. Kd3 Ke6 46. Kd4 1-0

