4. Nf3 is usually played first, but it is not of much importance.

4... Bd6

I have a preference for 4... c5 By the move in the text Black must lose a move, being obliged to defend the d-pawn.

5. Nc3 c6 6. Nf3 Bg4 7. Be3 Nf6 8. h3 Bh5 9. g4 Bg6 10. Qe2 Qe7 11. O-O Nbd7 12. Rae1 O-O 13. Qd1 Qd8 14. Bg5 Qc7 15. a3

Lost time. 15. Nh4 preserves the attack, and negatives the strong counter effect of the opponent. We give a diagram of the position; it is abounding in pretty variations.

15... h5 16. Bxf6 hxg4 17. Be7

Instead White might have played 17.Bg6.

If 17. Bxg6 gxf3 18. Bxg7 Kxg7 19. Bh5 winning the f-pawn, and retaining chances of winning the game.(In fact 19. Bf5 is probably even better - Ed.)

If 17. Bxg6 fxg6 18. Bxg7 (Because of an improvement on Black's 18th move in this variation, White should play 18. Ng5 Rxf6 19. Qxg4 with equal chances - Ed.) 18... Kxg7 (but now the improvement 18... Rxf3 is better for Black - Ed.) 19. Ng5 with fair prospects.

If 17. Bxg6 gxf6 18. Bf5 gxf3 19. Qxf3

If 17. Bxg6 Nxf6 18. Ng5 fxg6 19. Ne6

17... Bxd3 18. Bxd6 Qxd6 19. Qxd3 gxf3 20. Qxf3 Rae8 21. Kh1 Qh6 22. Rg1 Re6 23. Qg4 Rfe8 24. Rxe6 Rxe6 25. f4 Nf6 26. Qf3 Nh5 27. Rg5 Nxf4

Brilliant and sound. a pretty termination to a well played game.

28. Qxf4 Qxh3+ 29. Kg1 Re1+ 0-1 [Peake]