1. c4 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Be2

The Averbakh variation of the King's Indian, which is a strong and dangerous line.

5... O-O 6. Bg5

King's Indian - Averbakh variation

6... h6

best - therwise White gets a bind with Qd2 preventing h6.

6... e5 loses - which is the point of the White move order. 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nd5 Nbd7 10. Rd1! wins

7. Be3 Nc6

I had expected this line and looked at it before the game.

8. d5!

White must not wait as Black plays e5.

8... Nb8

8... Ne5 is answered by.. 9. f4 Neg4 10. Bd2 and h3 etc with a big advantage.

9. Qd2 Kh7

This position has scored 93% for White - This is why I played it !!

10. f3

Samisch-style White will play g4 and h4 when ready. This move also prevents Ng4 and solidifies e4.

10. h3 is the most popular move, but I envisage the pawn going to h4-5.

10... c6

The standard way of getting Q-side counterplay. e5 is the alternative.

10... e5 11. g4 and h4 with a good attack.

11. O-O-O cxd5 12. cxd5 Bd7

Black's counterplay is in advancing the b pawn.

13. Kb1

It is best to get the King off the open file, and allow White's Rook to come to c1 also.

13... Na6 14. g4 Nc5

How should White continue?

15. e5!

White will set up a massive centre at the cost of swapping his dark squared Bishop.

15... Ng8 16. Bxc5

It breaks my heart to lose the dark squared Bishop but the big centre is fantastic compensation.

16... dxc5 17. f4

Black's Bishop will be blocked out of the game.

17... b5

Black sacks the b5 pawn to open lines against White's King. But the pawn is irrelevant to my play in the centre and on the K-side so I ignore it. I am not afraid of b4 as the Knight will then go to e4.

18. h3

White has to consolidate his g4 pawn for the time being in order to complete his development with Nf3.

18... Qb6 19. Nf3 Rfd8 20. Qe3

gets off the d file to unpin the d5 pawn and prepares Ne4 pressure against c5.

20... Rac8 21. Rc1

Again threatens Ne4

21... Qa5 22. Ne4 c4 23. h4!

Geoff's monster pawns !

The key move - the h3 move was just a temporary manoeuvre to get developed. But now I'm gung ho on the K-side !! Look at those pawns men !

23... Bxg4?

The losing move. Fox miscalculates. 23...Kh8 looks best (Ng5 check was threatened)

24. Nfg5+! hxg5

Now I'm spoilt for choice as both Nxg5 and hxg4 win (and Bxg4). But computer analysis supports my move as strongest.

25. Nxg5+

25. hxg5+ Bh5 This is the line that Mike Fox had seen when he took the g4 pawn. He mistakenly thought he was ok here. But I played 25.Nxg5 any way which he had not considered. 26. Bxh5 gxh5 27. Rxh5+ Kg6 (27... Nh6 28. gxh6 (28. Rxh6+ also wins. 28... Bxh6 29. Qh3 Rh8 30. Qf5+ Kg8 31. gxh6 Rxh6 32. Qxc8+) 28... Bh8 29. Ng5+ Kg8 30. Qe4 wins) 28. f5+ Kxh5 (28... Kxf5 29. g6+ Kg4 30. Rg5+ Kh4 31. Rh1#) 29. Qh3#

25... Kh8

25... Kh6 26. Nxf7+ Kh5 27. Bxg4+ Kxg4 28. Rhg1+ Kxh4 (28... Kf5 29. Rg5#) 29. Qg3+ Kh5 30. Qg4#

26. Nxf7+ Kh7 27. Bxg4

It's a nightmare for Black , showing as +8 on the computer 14 depth.

27... Rxd5

Desperation

27... Rf8 28. h5! Rxf7 29. hxg6+ Kxg6 30. Qe4+ Rf5 31. Qxf5#

27... Qb6 is given as best by the computer , but... 28. Qh3 Nh6 29. Nxh6 Bxh6 30. h5 gxh5 31. Qxh5 Computer now announces mate in 6. 31... Rg8 32. d6 Qxd6 33. exd6 Rg6 34. Bf5 Kg8 35. Qxg6+ Kf8 36. Be6 Bxf4 37. Qf7#

28. Bxc8 Nh6 29. Qe4

A Black Nightmare

White attacks the Rook, but more importantly has mate threats involving Ng5+ and Qxg6 etc.

29... Rd2

Black hopes for a perpetual involving Rxb2 but he's dreaming.

30. Ng5+ Kh8

30... Kg8 31. Be6+ Kf8 (31... Nf7 32. Qxg6 is mate in six at most. 32... Rxb2+ 33. Kxb2 Qd2+ 34. Kb1 Qb4+ 35. Ka1 Qc3+ 36. Rxc3 a6 37. Qxf7+ Kh8 38. Qg8#) 32. Nh7+ Ke8 33. Qc6+ Kd8 34. Qc8#

31. Qxg6 Kg8

31... Rxb2+ 32. Kxb2 Qd2+ 33. Rc2 and Black runs out of checks and gets mated. 33... Qd4+ (33... Qd3 34. f5 c3+ 35. Ka1) 34. Rc3 Qd2+ 35. Kb1

32. Be6+ Kf8 33. Nh7# 1-0 [Geoff Peake]