[Event "Huy op"]
[Site "Huy"]
[Date "1993.??.??"]
[Round "1"]
[White "Beukenhorst, Edo"]
[Black "Walthaus, Cees"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "80"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 d5 5. Nbd2 Nf6 6. Bg2 Be7 7. 0-0 0-0 8. Re1 dxe4 9. dxe4 Qc7 10. Nc4 e5 11. Nfxe5 Nxe5 12. Bf4 Nfd7 13. Qh5 Bf6 14. Rad1 g6 15. Qe2 g5 16. Qh5 gxf4 17. gxf4 Nxc4 18. e5 Bg7 19. Be4 h6 20. Kh1 Ncxe5 21. fxe5 Nxe5 22. f3 f5 23. Bd5+ Kh7 24. Rg1 Qb6 25. Rd2 Bd7 26. Rdg2 Bh8 27. h3 Qd6 28. c4 Bc6 29. f4 Bxd5 30. cxd5 Qxd5 31. fxe5 Qc6 32. Rd1 Bxe5 33. Kg1 Bd4+ 34. Kh2 Qd6+ 35. Kh1 Rae8 36. b4 b6 37. Rf1 Re5 38. bxc5 bxc5 39. Rg5 Qd5+ 40. Rg2 Rg8 0-1

[Event "Huy op"]
[Site "Huy"]
[Date "1993.??.??"]
[Round "2"]
[White "Walthaus, Cees"]
[Black "Degembe, Pierre"]
[Result "0-1"]
[ECO "B92"]
[PlyCount "52"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BEL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. 0-0 Nc5 8. Bf3 e5 9. Nb3 Be6 10. Bg5 Be7 11. Bxf6 Bxf6 12. Qe2 b5 13. Rfd1 Nxb3 14. axb3 0-0 15. Nd5 Bxd5 16. Rxd5 Qb6 17. Qd2 Be7 18. Be2 f5 19. exf5 Rxf5 20. Bd3 Bg5 21. Qe2 Rxf2 22. Rxb5 Rf1+ 23. Kxf1 Rf8+ 24. Ke1 Qg1+ 25. Qf1 Rxf1+ 26. Bxf1 axb5 0-1

[Event "Geraardsbergen op"]
[Site "Geraardsbergen"]
[Date "1993.??.??"]
[Round "7"]
[White "Walthaus, Cees"]
[Black "Ervynck, Jeroen"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "33"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BEL"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 0-0 8. 0-0 Re8 9. Qf3 Bb7 10. Bg5 Bxc3 11. bxc3 c5 12. Qf5 d6 13. f4 c4 14. Bxf6 Qxf6 15. Qxf6 gxf6 16. Bxc4 Bxe4 17. Bd3 1/2-1/2

[Event "Geraardsbergen op"]
[Site "Geraardsbergen"]
[Date "1993.??.??"]
[Round "?"]
[White "Walthaus, Cees"]
[Black "Sneppe, Herman"]
[Result "0-1"]
[ECO "B82"]
[PlyCount "56"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BEL"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 a6 7. Be3 b5 8. e5 dxe5 9. fxe5 Nd5 10. Nxd5 Qxd5 11. Nf3 Bb7 12. Bd3 Nd7 13. Bd4 Bc5 14. Bxc5 Qxc5 15. Qe2 Bxf3 16. Qxf3 Qxe5+ 17. Kd2 Qg5+ 18. Ke2 0-0 19. Rhd1 Ne5 20. Qe4 Nxd3 21. Rxd3 Rac8 22. Rh3 h6 23. Kf1 Rc4 24. Qb7 Rxc2 25. Rg3 Qf4+ 26. Kg1 Qf2+ 27. Kh1 Re2 28. Rg1 Re1 0-1

[Event "Kecskemet op1"]
[Site "Kecskemet"]
[Date "1990.??.??"]
[Round "5"]
[White "Donko, Matyas"]
[Black "Walthaus, Cees"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "2255"]
[PlyCount "37"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Bb4 7. 0-0 Bxc3 8. bxc3 Qxc3 9. Rb1 Qc7 10. Rb3 Nf6 11. Rg3 0-0 12. Bd3 d6 13. Bh6 Ne8 14. Qg4 f5 15. exf5 Rf6 16. Qg5 Kh8 17. Qh5 Rf7 18. fxe6 Re7 19. Bxg7+ 1-0

[Event "Kecskemet op1"]
[Site "Kecskemet"]
[Date "1990.??.??"]
[Round "9"]
[White "Walthaus, Cees"]
[Black "Mueller, Stefan"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "61"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Bg5 Qxe2+ 8. Bxe2 Be7 9. Nbd2 h6 10. Bh4 Nc6 11. d4 Bf5 12. c3 0-0-0 13. 0-0-0 g5 14. Bg3 Rdg8 15. Nc4 Nd5 16. Bd3 Bxd3 17. Rxd3 f5 18. h3 f4 19. Bh2 h5 20. Nfd2 g4 21. Rd1 h4 22. Ne4 g3 23. fxg3 fxg3 24. Bg1 Nf4 25. Rf3 Rf8 26. Ned2 Nxg2 27. Rxf8+ Rxf8 28. Rf1 Nf4 29. Be3 Nxh3 30. Rxf8+ Bxf8 31. Bg5 0-1

