[Event "Leeuwarden"] [Site "?"] [Round "0"] [White "Dijkstra"] [Black "Kramer"] [Result "0-1"] [ECO "D31"] [Opening "Semi-Slav: 4.Nf3"] {Black plays ... Pa5 to gain time for his Kingside attack} 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. cxd5 exd5 6. Bg5 Be7 7. Qc2 Bg4 8. Ne5 Bh5 9. e3 Nbd7 10. Nxd7 Qxd7 11. h3 Bg6 12. Bd3 Bxd3 13. Qxd3 Qe6 14. O-O O-O 15. Rab1 a5 { Preventing Pb4 for the moment, and so gaining time for the Kingside attack. Curiously enough, this move is hard ever seen inactualpractise} 16. Rfc1 (16. a3 a4) (16. Na4 {premature} 16... b5 17. Nc5 Bxc5 18. dxc5 Ne4) 16... Bd6 17. Bxf6 Qxf6 18. Na4 {Resuming the minority attack. As the direct advance of the b-pawn is not possible. White proceeds to occupy the furthest available square on the half open file - a device already familar to us.} 18... Rfe8 19. Nc5 Re7 20. a3 g5 $1 {This method of sharpening the struggle on the Kingside is also typical of this kind of situation. It is very effective here, because White's Ph3 has weakened his King position} (20... a4 21. Qc2 b6 22. Nd3 { induced the weakning of the c-pawn}) 21. Qd1 (21. e4 Bxc5 22. e5 Rxe5 23. dxe5 Bxf2+ 24. Kf1 Qf4 25. Qf3 Qxf3 26. gxf3 Bd4 {Favourable endgame for Black}) ( 21. -- g4 {the threat} 22. hxg4 Qh4) 21... Qg6 22. b4 axb4 23. axb4 f5 24. b5 { White has succeeded in carrying out his plan, but meanwhile the Blackcounteratt ack has assumed decisive proportions} 24... g4 $1 25. hxg4 fxg4 26. g3 Rf8 27. Nd3 {Succour for the threatened King, but it is too late} 27... Bxg3 28. fxg3 Rxe3 29. Nf4 (29. Ne5 Rxg3+ 30. Kh2 Qh5+ $1 31. Kxg3 Qh3#) 29... Rxg3+ 30. Kh2 Qh6+ 31. Kxg3 Qxf4+ 32. Kh4 {mate in five} (32. Kg2 Qf2+ 33. Kh1 Qh4+ 34. Kg1 Qg3+) 32... Qh6+ 33. Kxg4 Rf4+ 34. Kg3 Qh4+ 35. Kg2 Qf2+ 36. Kh3 Rh4# 0-1