[Event "Enschede op-A"]
[Site "Enschede"]
[Date "2022.08.13"]
[Round "9"]
[White "Pierik, Albert"]
[Black "Maters, Arthur"]
[Result "0-1"]
[ECO "B90"]
[BlackElo "2096"]
[PlyCount "66"]
[EventDate "2022.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. h3 b5 9. Bd3 Be7 10. f4 Qc7 11. f5 Bc4 12. Bxc4 Qxc4 13. Nd2 Qc6 14. a4 b4 15. Nd5 Nxd5 16. exd5 Bh4+ 17. Kf1 Qxd5 18. Qf3 Qxf3+ 19. Nxf3 Be7 20. Rd1 Nd7 21. g4 Rc8 22. Rh2 Nc5 23. Bxc5 Rxc5 24. Ne1 a5 25. Rhd2 0-0 26. b3 Rfc8 27. Rd5 g6 28. Rxc5 Rxc5 29. f6 Bxf6 30. Rxd6 Kg7 31. Ke2 Bh4 32. Nf3 Bg3 33. Rd2 Bf4 0-1

[Event "Enschede op-A"]
[Site "Enschede"]
[Date "2022.08.12"]
[Round "7"]
[White "De Jong, Mats"]
[Black "Pierik, Albert"]
[Result "1/2-1/2"]
[ECO "E51"]
[WhiteElo "1461"]
[PlyCount "84"]
[EventDate "2022.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 d5 5. e3 0-0 6. Bd2 b6 7. cxd5 exd5 8. a3 Bd6 9. b4 Nbd7 10. b5 Bb7 11. Bd3 c5 12. 0-0 c4 13. Bf5 g6 14. Bh3 Re8 15. Qc2 Ne4 16. g3 Qc7 17. Bg2 Ndf6 18. Rfc1 Nxc3 19. Bxc3 Ne4 20. Nd2 f5 21. Re1 a5 22. a4 Re7 23. Re2 Bb4 24. Nb1 Qd6 25. Bh3 Rae8 26. Bg2 h5 27. Be1 Kh7 28. Nc3 Qf6 29. Bd2 h4 30. Rb1 Bxc3 31. Bxc3 Kg7 32. Kf1 hxg3 33. hxg3 Qg5 34. Bxe4 fxe4 35. Ke1 Rf7 36. Kd1 Bc8 37. Kc1 Rf3 38. Be1 Bg4 39. Rd2 Bh5 40. Kb2 Qe7 41. Ka2 Rh8 42. Qb2 Bg4 1/2-1/2

[Event "Enschede op-A"]
[Site "Enschede"]
[Date "2022.08.09"]
[Round "3"]
[White "Goudriaan, Rafael"]
[Black "Pierik, Albert"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1594"]
[PlyCount "29"]
[EventDate "2022.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 g6 4. d4 cxd4 5. cxd4 Bg7 6. Be3 d6 7. h3 Nf6 8. Nc3 a6 9. Rc1 b5 10. e5 dxe5 11. dxe5 Qxd1+ 12. Kxd1 Nxe5 13. Nxe5 Bb7 14. Nd3 Rd8 15. Kc2 1-0

[Event "Enschede op-A"]
[Site "Enschede"]
[Date "2022.08.09"]
[Round "2"]
[White "Pierik, Albert"]
[Black "Van Dam, Thijs"]
[Result "0-1"]
[ECO "B38"]
[BlackElo "1873"]
[PlyCount "68"]
[EventDate "2022.08.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 d6 7. Be2 Bg7 8. Be3 0-0 9. 0-0 Bd7 10. Nc2 a5 11. b3 Nb4 12. Rc1 Bc6 13. f3 Nxc2 14. Qxc2 Nd7 15. Rfd1 Qb8 16. Nd5 Bxd5 17. Rxd5 Nc5 18. Rcd1 Rc8 19. Qd2 b6 20. Bf4 Ne6 21. Bg3 Nc7 22. Rd3 Na6 23. Qe3 a4 24. f4 axb3 25. axb3 Nc5 26. R3d2 Ra3 27. Rb1 Qa8 28. Bf3 Ra1 29. Rxa1 Qxa1+ 30. Kf2 Bc3 31. b4 Bxd2 32. Qxd2 Nb3 33. Qd1 Qb2+ 34. Qe2 Qd4+ 0-1

