D04

Leif Hållstedt
Roland Windahl

Stockholm
2016


D04: Colle System

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Nbd2 Nc6 5. a3 e6 6. b3 Bd6 7. Bb2 Ne7 8. Bd3 Bxd3 9. cxd3 White has new doubled pawns: d3+d4 9... O-O 10. Ne5 c6 11. f4 Nd7 12. O-O Nf5 13. Rf3 Nh4 14. Rg3 Nf5 Black threatens to win material: Nf5xg3 15. Rh3 Nf6? 15... Bc7 16. e4 Nh6 17. Qh5= 16. Kh1 16. g4 Ne7 17. g5 Nd7+/- 16... Be7? 16... >= Nh6= is the best option Black has 17. g4+/- Nd6 18. g5 Nd7 18... >= g6 19. gxf6 Bxf6+/- 19. Qh5 h6 20. gxh6 g6 20... g5 does not help much 21. Ndf3 Nxe5 22. dxe5+- 21. h7+ >= 21. Nxg6!? and White can already relax 21... Kh7 22. Nxf8+ Bxf8+- 21... Kg7 22. Qh6+ Kh8 23. Rg1?? stumbles just before the finish line >= 23. Nxg6+ keeps an even firmer grip 23... fxg6 24. Qxg6+- 23... Nf5?? the position is going down the drain >= 23... Nxe5!? 24. fxe5 Nf5+/- 24. Nxg6+ >= 24. Qxg6! ends the debate 24... fxg6 25. Nxg6+ Kg7 26. Nxf8+ Kf7 27. h8=Q Bxf8 28. e4+- 24... fxg6 25. Qxg6 Nf6 25... Bh4 there is nothing else anyway 26. e4 Rf6+- 26. e4 26. Qg8+ Rxg8 27. hxg8=Q# 26... Qe8 27. exf5 27. Qg8+ Rxg8 28. hxg8=Q# 27... Rf7 27... Qxg6 hoping against hope 28. fxg6 Ne8+- 28. fxe6 28. Qg8+ Qxg8 29. hxg8=Q# 28... Rxh7 28... Ng4 a fruitless try to alter the course of the game 29. Rxg4 Bh4 30. Rhxh4 Qe7 31. Qg8+ Rxg8 32. hxg8=Q# 29. Rxh7+ 29. Qg7# 29... Nxh7 30. Qg7# 1-0 [Fritz 6 Light (30m)]