[Event "World School-ch U11 7th"]
[Site "Krakow"]
[Date "2011.04.30"]
[Round "1"]
[White "Piersiak, Krystian"]
[Black "Temizkan, Denizcan"]
[Result "0-1"]
[ECO "C47"]
[BlackElo "1702"]
[PlyCount "61"]
[EventDate "2011.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bg5 h6 8. Bh4 d6 9. Bd3 0-0 10. Qf3 g5 11. Bg3 Bg4 12. Qe3 d5 13. f3 d4 14. Qd2 Bc8 15. 0-0-0 dxc3 16. bxc3 Ba3+ 17. Kb1 Rb8+ 18. Ka1 Bb2+ 19. Kb1 Bxc3+ 20. Kc1 Bxd2+ 21. Rxd2 Qe7 22. e5 Nd5 23. c4 Qa3+ 24. Kd1 Nc3+ 25. Ke1 Qc1+ 26. Rd1 Qxd1+ 27. Kf2 Qd2+ 28. Kg1 Rb2 29. Bf1 Ne2+ 30. Kf2 Nd4+ 31. Kg1 0-1

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.27"]
[Round "9"]
[White "Piersiak, Krystian"]
[Black "Kokoszczynski, Jan"]
[Result "0-1"]
[ECO "B72"]
[BlackElo "1546"]
[PlyCount "84"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 g6 6. Be3 Nc6 7. Qd2 Bg7 8. 0-0-0 Bd7 9. Bb5 a6 10. Nxc6 Bxc6 11. Bxc6+ bxc6 12. f3 Rb8 13. g4 Qc8 14. b3 Qb7 15. Na4 c5 16. Rhf1 Nd7 17. Qd3 Qb5 18. Qxb5 axb5 19. Nb2 0-0 20. h4 Ra8 21. a4 Nb6 22. h5 bxa4 23. bxa4 Bxb2+ 24. Kxb2 Nc4+ 25. Kc3 Nxe3 26. Ra1 Nxf1 27. Rxf1 Rfb8 28. hxg6 fxg6 29. f4 Rxa4 30. f5 Rf8 31. Kd3 gxf5 32. gxf5 e6 33. Rg1+ Kf7 34. fxe6+ Kxe6 35. Rh1 Rf7 36. Rh6+ Ke7 37. Rh3 Ke8 38. Re3 Rd4+ 39. Ke2 Re7 40. Kf3 d5 41. exd5 Rxe3+ 42. Kxe3 Rxd5 0-1

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.26"]
[Round "8"]
[White "Topolan, Pawel"]
[Black "Piersiak, Krystian"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "95"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 4. 0-0 Bc5 5. b4 Bxb4 6. c3 Ba5 7. Qb3 Qe7 8. Ba3 d6 9. d4 exd4 10. cxd4 Bd7 11. e5 Rb8 12. Nc3 b6 13. exd6 cxd6 14. Rfe1 Be6 15. Bxe6 fxe6 16. Rxe6 Bxc3 17. Rxe7+ Kxe7 18. Qxc3 Kd7 19. Rc1 Nge7 20. d5 Rbc8 21. dxc6+ Rxc6 22. Qxg7 Rhc8 23. Rxc6 Rxc6 24. Ne5+ dxe5 25. Qxe7+ Kc8 26. Qe8+ Kb7 27. Qd7+ Rc7 28. Qd5+ Kc8 29. Qxe5 Kd8 30. f4 Kc8 31. Qe8+ Kb7 32. f5 Rc8 33. Qxc8+ Kxc8 34. f6 Kd8 35. f7 Kc7 36. f8Q Kb7 37. Qe7+ Ka6 38. Bd6 h5 39. Bb8 h4 40. Qxa7+ Kb5 41. Bc7 h3 42. Qxb6+ Kc4 43. g4 Kd3 44. g5 Ke4 45. g6 Kf5 46. g7 Ke4 47. g8Q Kf5 48. Qbe6# 1-0

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.25"]
[Round "7"]
[White "Gozdzicki, Maciej"]
[Black "Piersiak, Krystian"]
[Result "1/2-1/2"]
[ECO "D10"]
[PlyCount "78"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 c6 4. Bf4 b6 5. e3 Bb7 6. Nf3 e6 7. Be2 Bd6 8. Bxd6 Qxd6 9. 0-0 0-0 10. Qc2 Qb4 11. cxd5 cxd5 12. a3 Qd6 13. Nb5 Qd7 14. Ne5 Qc8 15. Qb3 Ba6 16. Rfc1 Qd8 17. Nc7 Bxe2 18. Nxa8 Na6 19. Nxb6 Qxb6 20. Qc2 Bh5 21. b4 Qb7 22. Qc6 Qxc6 23. Rxc6 Nb8 24. Rc7 a6 25. Nc6 Nxc6 26. Rxc6 Be2 27. a4 h6 28. Rb6 Rc8 29. b5 axb5 30. axb5 Rc4 31. g3 Rb4 32. f4 Rxb5 33. Rxb5 Bxb5 34. h3 g6 35. g4 Ne4 36. Kg2 Kg7 37. Kf3 Nd2+ 38. Kg3 Ne4+ 39. Kf3 Nd2+ 1/2-1/2

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.24"]
[Round "6"]
[White "Piersiak, Krystian"]
[Black "Ochowicz, Jakub"]
[Result "0-1"]
[ECO "B43"]
[BlackElo "1400"]
[PlyCount "52"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 b5 6. a3 Bb7 7. g3 Qc7 8. Bg2 h6 9. Be3 Nf6 10. f3 b4 11. axb4 Bxb4 12. Bd2 0-0 13. 0-0 Nc6 14. Nxc6 dxc6 15. Kh1 Rfd8 16. Nb5 cxb5 17. c3 Be7 18. Bf4 Rxd1 19. Bxc7 Rxa1 20. Rxa1 Rc8 21. Be5 Rd8 22. Bf1 Bc5 23. b4 Bb6 24. c4 bxc4 25. Bxc4 Nxe4 26. fxe4 Bxe4# 0-1

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.23"]
[Round "5"]
[White "Piersiak, Krystian"]
[Black "Polczyk, Mikolaj"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "98"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Nxd5 Qxd5 5. Nf3 Bg4 6. Be2 Nc6 7. h3 Bh5 8. 0-0 0-0-0 9. Re1 e6 10. d3 h6 11. Bd2 g5 12. c4 Qd6 13. a3 Bg7 14. g4 Bg6 15. Be3 Bxd3 16. Bxd3 Qxd3 17. Qxd3 Rxd3 18. Rab1 Rhd8 19. Kg2 Nd4 20. Bxd4 Bxd4 21. Nxd4 R8xd4 22. Rec1 e5 23. b3 e4 24. Re1 Rd2 25. Re3 R2d3 26. Rbe1 Rxe3 27. Rxe3 Kd7 28. Kg3 Ke6 29. f4 f6 30. fxg5 fxg5 31. Kf2 Ke5 32. a4 Rd2+ 33. Ke1 Rb2 34. Re2 Rxb3 35. Rh2 Rb1+ 36. Kf2 Rb2+ 37. Kg1 Rxh2 38. Kxh2 Kd4 39. Kg3 Kd3 40. h4 gxh4+ 41. Kxh4 e3 42. Kh5 e2 43. Kxh6 e1Q 44. g5 Qe7 45. g6 Kxc4 46. g7 Qxg7+ 47. Kxg7 Kd3 48. Kf7 c5 49. Ke7 c4 0-1

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.22"]
[Round "4"]
[White "Grunas, Jakub"]
[Black "Piersiak, Krystian"]
[Result "1/2-1/2"]
[ECO "C61"]
[WhiteElo "1303"]
[PlyCount "71"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. d3 c6 6. Bc4 Nf6 7. 0-0 Bc5 8. Nd2 0-0 9. h3 a5 10. a3 a4 11. Re1 Qe7 12. Nf1 Re8 13. Bd2 d6 14. Ng3 b5 15. Ba2 Be6 16. Bxe6 Qxe6 17. Qf3 Nd7 18. Qf5 Rad8 19. Qxe6 Rxe6 20. Rad1 Rde8 21. Kf1 Nb6 22. Ba5 g6 23. Bxb6 Bxb6 24. Ne2 c5 25. Nf4 Re5 26. Nd5 Ba5 27. Re2 Kg7 28. f4 R5e6 29. Kf2 f5 30. Kf3 fxe4+ 31. dxe4 Rf8 32. Kg3 Rfe8 33. Kf3 h6 34. g3 Rf8 35. Kg2 Rfe8 36. Kf3 1/2-1/2

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.21"]
[Round "3"]
[White "Piersiak, Krystian"]
[Black "Sernecki, Franciszek"]
[Result "0-1"]
[ECO "B10"]
[BlackElo "1473"]
[PlyCount "112"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. exd5 cxd5 4. Nf3 Bf5 5. Nd4 Bg6 6. Bb5+ Nd7 7. Nxd5 e6 8. Nc3 a6 9. Ba4 Bc5 10. Nf3 Ngf6 11. d4 Ba7 12. Ne5 Qc7 13. Nxg6 hxg6 14. d5 Rxh2 15. Rxh2 Qxh2 16. dxe6 Qg1+ 17. Kd2 Qxf2+ 18. Qe2 Qxe2+ 19. Nxe2 fxe6 20. Nf4 Kf7 21. Bb3 Nc5 22. Nd3 Nfe4+ 23. Ke2 Nxd3 24. cxd3 Nc5 25. Bc2 Nd7 26. Bd2 Nf6 27. Rf1 Bd4 28. Bc3 Rc8 29. Kd2 Bxc3+ 30. bxc3 Ke7 31. d4 g5 32. Re1 Rd8 33. Bb3 Rd6 34. Kd3 b5 35. a3 Nd5 36. Bxd5 Rxd5 37. Re5 Kd6 38. Re3 e5 39. Rxe5 Rxe5 40. dxe5+ Kxe5 41. c4 bxc4+ 42. Kxc4 Kf4 43. Kc5 Kg3 44. Kb6 Kxg2 45. Kxa6 g4 46. a4 g3 47. a5 Kf2 48. Kb7 g2 49. a6 g1Q 50. a7 g5 51. a8Q Qg2+ 52. Kb8 Qxa8+ 53. Kxa8 g4 54. Kb7 g3 55. Kc6 g2 56. Kd5 g1Q 0-1

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.20"]
[Round "2"]
[White "Bogut, Maksymilian"]
[Black "Piersiak, Krystian"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "107"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. Nf3 g6 4. 0-0 a6 5. d4 Bg7 6. Ng5 Nh6 7. f4 exf4 8. Bxf4 Bxd4+ 9. Kh1 0-0 10. c3 Be5 11. Qd2 Na5 12. Bd5 Qf6 13. Na3 c6 14. Be3 Qd6 15. b4 cxd5 16. Bc5 Qc6 17. exd5 Qc7 18. Qe3 d6 19. Bd4 Nf5 20. Qd3 Bxd4 21. cxd4 Qb6 22. bxa5 Qxa5 23. g4 Qxd5+ 24. Kg1 Qxd4+ 25. Qxd4 Nxd4 26. Ne4 Rd8 27. Rad1 Nb5 28. Nxb5 axb5 29. h3 Rxa2 30. Nxd6 Be6 31. Nxb7 Rxd1 32. Rxd1 h5 33. Rd4 hxg4 34. hxg4 Ra1+ 35. Kf2 Rb1 36. g5 b4 37. Rd8+ Kg7 38. Rb8 b3 39. Nc5 Bd5 40. Nd7 Rb2+ 41. Ke3 Rg2 42. Kf4 Be6 43. Nc5 b2 44. Nd3 Bf5 45. Nxb2 Rg4+ 46. Kf3 Rxg5 47. Rb7 Rg4 48. Rc7 Rb4 49. Nc4 Rb3+ 50. Kf4 Rc3 51. Ke5 Be6 52. Kd4 Rxc4+ 53. Rxc4 Bxc4 54. Kxc4 0-1

[Event "POL-ch U10"]
[Site "Mielno"]
[Date "2011.03.19"]
[Round "1"]
[White "Piersiak, Krystian"]
[Black "Jarzebowski, Kacper"]
[Result "1-0"]
[ECO "B50"]
[BlackElo "1237"]
[PlyCount "119"]
[EventDate "2011.03.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. Bc4 Nc6 5. h3 a6 6. d4 b5 7. Be2 cxd4 8. Nxd4 Nxd4 9. Qxd4 Bb7 10. g4 e5 11. Qd3 Be7 12. a3 0-0 13. Bg5 Re8 14. 0-0-0 Bf8 15. Rhf1 h6 16. Bh4 g5 17. Bg3 Qc7 18. h4 Rad8 19. Bf3 Bc8 20. hxg5 hxg5 21. Qe3 Kh7 22. Qxg5 Bh6 23. Rh1 Ng8 24. Rxh6+ Nxh6 25. Rh1 Re6 26. Nd5 Qd7 27. Qf5+ Kg7 28. Qg5+ Kh7 29. Nf6+ Rxf6 30. Qxf6 Qe6 31. Qxe6 Bxe6 32. g5 Rc8 33. Rxh6+ Kg7 34. Rh4 Bb3 35. c3 a5 36. Rh6 b4 37. axb4 axb4 38. Kd2 bxc3+ 39. bxc3 Rd8 40. Ke3 Be6 41. c4 Bxc4 42. Rxd6 Rxd6 43. Bxe5+ Kg6 44. Bxd6 Kxg5 45. Be2 Bxe2 46. Kxe2 Kf6 47. e5+ Ke6 48. Bb8 Kd7 49. f4 Ke6 50. Ke3 Kf5 51. Kf3 Ke6 52. Ke4 f5+ 53. exf6 Kxf6 54. f5 Kf7 55. Ke5 Ke7 56. f6+ Kf7 57. Kf5 Kf8 58. Kg6 Kg8 59. f7+ Kf8 60. Bd6# 1-0

