[Event "Esbjerg"]
[Site "Esbjerg DEN"]
[Date "1981.07.??"]
[EventDate "?"]
[Round "11"]
[Result "1-0"]
[White "Raymond Keene"]
[Black "Ole Jakobsen"]
[ECO "D37"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]

1. d4 { Notes by Raymond Keene. } d5 2. c4 e6 3. Nc3 Be7
4. Nf3 Nf6 5. Bf4 O-O 6. e3 b6 {A more active course is
6...c5.} 7. cxd5 exd5 8. Bd3 Bb7 9. O-O c5 10. Ne5 Nc6 11. Qf3
cxd4 12. Nxc6 Bxc6 13. exd4 Qd7 14. Rfe1 Rfe8 15. Be5 b5 {?
Queenside counter-attack is quite out of place. He should
steer for exchanges with 15...Qg4, since White now succeeds in
massing his forces for a kingside onslaught.} 16. Bf5 Qb7
17. Re3 b4 {Or 17...Ne4 18 Qh5 g6 19 Qxh7+ Kxh7 20 Rh3+ Kg8 21
Rh8 mate.} 18. Ne2 g6 19. Ng3 {Another idea is 19 Bxf6 Bxf6 20
Bxg6 hxg6 21 Qxf6 Rxe3 22 fxe3 with a good extra pawn.}
19...Nd7 {After 19...gxf5 20 Nxf5 White has a decisive
attack.} 20. Bxd7 Qxd7 21. Nh5 {Forcing a decisive weakening
of the dark squares, for if 21...gxh5 22 Qxh5 f6 23 Rg3+ Kh8
24 Qh6 Rg8 25 Bxf6+ Bxf6 26 Qxf6+ Rg7 27 Rxg7 Qxg7 28 Qxc6+-.}
21...f5 22. Rae1 Rf8 23. Qf4 Rf7 24. Rg3 Re8 25. Ree3 {Not the
premature 25 Rxg6+? hxg6 26 Qh6 Bf6! 27 Qxg6+ Bg7.} 25...Qe6
26. h4 Bf8 27. Ng7 Bxg7 28. Bxg7 Qd7 29. Be5 Re6 30. h5
30...Qe8 31. hxg6 Rxg6 32. Rxg6+ hxg6 33. Rh3 Rh7 34. Rxh7
Kxh7 35. Qh4+ Kg8 36. Qh8+ Kf7 37. Qf6+ 1-0