[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Boots, Arie"]
[Black "Zaal, R."]
[Result "1-0"]
[ECO "D00"]
[PlyCount "59"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 h6 3. Bh4 c5 4. Nf3 Nc6 5. e3 Qb6 6. b3 Bf5 7. c4 dxc4 8. Bxc4 cxd4 9. exd4 g5 10. Bg3 Bg7 11. Ne5 Nxe5 12. dxe5 Qa5+ 13. Qd2 Qc5 14. Qe2 e6 15. Bb5+ Kf8 16. 0-0 Ne7 17. Nd2 Nd5 18. Rac1 Qe7 19. Qc4 h5 20. Qc8+ Qd8 21. Qxb7 h4 22. Nc4 hxg3 23. Nd6 Bg6 24. fxg3 f6 25. Nc8 Kg8 26. Qxa8 Kh7 27. Qxa7 Kh6 28. Bd7 Bf5 29. Nd6 fxe5 30. Nf7+ 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Grondsma, Henk"]
[Black "Zaal, R."]
[Result "1-0"]
[ECO "D12"]
[PlyCount "59"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. c4 c6 5. c5 Nbd7 6. b4 Qc7 7. Bb2 e6 8. Be2 Be7 9. 0-0 0-0 10. Ne5 Nxe5 11. dxe5 Nd7 12. f4 b6 13. cxb6 Qxb6 14. Bd4 Qxb4 15. a3 Qa5 16. Nd2 c5 17. Bb2 Rab8 18. Ra2 Nb6 19. g4 Be4 20. Nxe4 dxe4 21. Qc2 Nd5 22. Qxe4 Qd2 23. Bd3 Qxe3+ 24. Qxe3 Nxe3 25. Rf3 Nd5 26. Be4 Rfd8 27. f5 exf5 28. gxf5 Bg5 29. Ba1 Rb1+ 30. Bxb1 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Mulder, Rob"]
[Black "Zaal, R."]
[Result "0-1"]
[ECO "B19"]
[PlyCount "50"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Bd3 Bxd3 8. Qxd3 Nf6 9. Nf3 Nbd7 10. Bd2 e6 11. 0-0-0 Be7 12. Ne4 Nxe4 13. Qxe4 Nf6 14. Qd3 Qc7 15. Ne5 Bd6 16. f4 0-0-0 17. g3 Bxe5 18. fxe5 Ng4 19. Rhf1 Nxe5 20. Qe4 Nc4 21. Bf4 Qa5 22. a3 Rd5 23. Rf3 Rhd8 24. Bd2 Rxd4 25. Bxa5 Rxd1# 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Siekerman, Peter"]
[Black "Zaal, R."]
[Result "1-0"]
[ECO "B18"]
[PlyCount "51"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 Bxd3 8. Qxd3 Ngf6 9. 0-0 e6 10. Qb3 Qc7 11. Re1 Be7 12. Ng5 Nd5 13. Nxe6 fxe6 14. Rxe6 0-0-0 15. c4 N7f6 16. cxd5 Rxd5 17. h3 Bd6 18. Bd2 Rxd4 19. Bg5 Bxg3 20. fxg3 Nd5 21. Rae1 Rb4 22. Qf3 Qb6+ 23. Kh2 Rxb2 24. Qf7 Qf2 25. Re8+ Rxe8 26. Rxe8# 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Zaal, R."]
[Black "Coerts, Marten"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "54"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. c3 cxd4 6. exd4 Bg4 7. Nbd2 Qb6 8. Qb3 Qxb3 9. axb3 Nh5 10. Bg3 Nxg3 11. hxg3 f6 12. Bb5 e6 13. 0-0 Bd6 14. Bxc6+ bxc6 15. Ra6 Kd7 16. Rfa1 Bb8 17. R1a5 e5 18. dxe5 fxe5 19. Rc5 Rc8 20. b4 Bd6 21. Rca5 Rc7 22. Nb3 Ke7 23. Nc5 Bc8 24. Rb6 axb6 25. Rxa8 bxc5 26. bxc5 Bxc5 27. Nxe5 Bd6 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Zaal, R."]
[Black "Glas, G."]
[Result "0-1"]
[ECO "B23"]
[PlyCount "52"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 d5 4. Bg2 d4 5. Nce2 Nc6 6. d3 Bd6 7. f4 e5 8. Nf3 Bg4 9. 0-0 Qc7 10. a3 a5 11. c3 h5 12. fxe5 Nxe5 13. Nf4 Ne7 14. h3 g5 15. hxg4 gxf4 16. Nxe5 Bxe5 17. gxf4 Bg7 18. c4 0-0-0 19. gxh5 Rdg8 20. f5 Bf6 21. Bf4 Be5 22. Qf3 Nc6 23. Bxe5 Nxe5 24. Qh3 f6 25. h6 Ng4 26. Kh1 Rxh6 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1983.??.??"]
[Round "?"]
[White "Zaal, R."]
[Black "Verhagen, Ad"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "64"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 Bf5 4. e3 e6 5. Bd3 Ne4 6. c3 Be7 7. Qc2 Nd7 8. Nbd2 Ndf6 9. Ne5 Nd6 10. f3 Bxd3 11. Nxd3 Nh5 12. 0-0-0 0-0 13. g4 Nf6 14. h4 Nfe8 15. e4 dxe4 16. fxe4 f5 17. gxf5 exf5 18. Be5 fxe4 19. Nf4 Bf6 20. Ne6 Qe7 21. Nxf8 Qxf8 22. Rdf1 Qe7 23. Rhg1 c5 24. Bxf6 Nxf6 25. Qb3+ Kh8 26. dxc5 e3 27. Re1 exd2+ 28. Kxd2 Nde4+ 29. Kc2 Rd8 30. Qa4 a6 31. Rg2 Qd7 32. Rxe4 Qd1# 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Boots, Arie"]
[Black "Zaal, R."]
[Result "1-0"]
[ECO "D10"]
[PlyCount "65"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 c6 2. c4 d5 3. e3 Nf6 4. Nc3 dxc4 5. Bxc4 Bf5 6. Nf3 e6 7. Nh4 Bg4 8. f3 Bh5 9. g4 Nxg4 10. Ng2 Nf6 11. Nf4 Bg6 12. e4 Bb4 13. h4 Bh5 14. e5 Ne4 15. Nxh5 Nxc3 16. bxc3 Bxc3+ 17. Kf1 Bxa1 18. Nxg7+ Kd7 19. Bg5 Qb6 20. Qxa1 Qb4 21. Bb3 Na6 22. Kf2 Nc7 23. Qb2 Nd5 24. a3 Qb5 25. Rb1 Rab8 26. a4 Qd3 27. Bxd5 cxd5 28. Nh5 b6 29. Rc1 Rhc8 30. Nf6+ Ke7 31. Qb4+ Kd8 32. Nxd5+ Kd7 33. Qe7# 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Poland, Jan"]
[Black "Zaal, R."]
[Result "1-0"]
[ECO "D18"]
[PlyCount "77"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 0-0 9. Qb3 Bxc3 10. bxc3 Qc7 11. Ba3 Re8 12. Ne5 Nbd7 13. f4 Nb6 14. Be2 Nbd5 15. c4 Ne7 16. Ra2 Be4 17. Rb2 Rab8 18. Bd3 Bxd3 19. Qxd3 Qa5 20. Bd6 Rbd8 21. Qa3 Nf5 22. Bb4 Qc7 23. Rfb1 Ne4 24. Qd3 Nf6 25. Ba3 b6 26. c5 Nd5 27. cxb6 axb6 28. Nc4 Nxf4 29. exf4 Rxd4 30. Bd6 Qd7 31. Qc3 Rxd6 32. Nxd6 Qxd6 33. Rxb6 Qxf4 34. a5 Qd4+ 35. Qxd4 Nxd4 36. Rb8 Kf8 37. a6 Nb5 38. Rxe8+ Kxe8 39. Rxb5 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Van Diepen, Peter"]
[Black "Zaal, R."]
[Result "1-0"]
[ECO "D17"]
[PlyCount "67"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 7. Bg5 Qc7 8. Nxc4 Nbd7 9. e3 Bb4 10. Bd3 Ne4 11. Qc2 Nxg5 12. h4 Bxd3 13. Qxd3 0-0-0 14. a5 Nc5 15. Qc2 Nge4 16. dxc5 Nxc5 17. 0-0 Rd3 18. Na4 Rhd8 19. Nxc5 Bxc5 20. Rfb1 Be7 21. g3 Bf6 22. Ra4 Qe7 23. b4 Bxh4 24. Nb6+ axb6 25. axb6 R8d5 26. b5 c5 27. Rxh4 Qd6 28. Kg2 Rxe3 29. Qxh7 Rxg3+ 30. fxg3 Rd2+ 31. Kh3 Qd5 32. Qg8+ Kd7 33. Qxf7+ Kd6 34. Qc7# 1-0

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Van der Sluijs, A."]
[Black "Zaal, R."]
[Result "0-1"]
[ECO "D15"]
[PlyCount "58"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. e4 b5 6. e5 Nd5 7. Be2 Nxc3 8. bxc3 Bf5 9. 0-0 e6 10. a4 Be7 11. Nd2 Nd7 12. axb5 cxb5 13. Bf3 Rc8 14. Rxa7 Nb6 15. Ra2 0-0 16. Be4 Bxe4 17. Nxe4 Nd5 18. Bd2 b4 19. cxb4 c3 20. Be3 Nxb4 21. Ra1 Qd5 22. Ng3 Rfe8 23. f4 g6 24. Rc1 Bh4 25. f5 Bxg3 26. hxg3 exf5 27. g4 Qe4 28. Qe2 c2 29. gxf5 Nd3 0-1

[Event "Alkmaar op-A"]
[Site "Alkmaar"]
[Date "1982.??.??"]
[Round "?"]
[White "Zaal, R."]
[Black "De Jong, Huib"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "62"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e6 7. Be3 Nge7 8. Qd2 a6 9. Nd1 b5 10. c3 Qa5 11. Ne2 0-0 12. 0-0 Rb8 13. d4 c4 14. d5 exd5 15. exd5 Nd8 16. Bd4 Nf5 17. Bxg7 Kxg7 18. Kh1 Nb7 19. Nd4 Nxd4 20. Qxd4+ Kg8 21. Re1 Nc5 22. Nf2 Qc7 23. Re3 Bd7 24. Rae1 Rbe8 25. Qf6 Nd3 26. Nxd3 cxd3 27. Bf3 d2 28. Rxe8 Rxe8 29. Rxe8+ Bxe8 30. Qd4 Qc4 31. Qxd2 Qf1# 0-1

