[Event "B.C.A. Autumn T. 2004"]

[Site "Stafford, ENG"]

[Date "2004.11.21"]

[Round "4.1"]

[White "Ross, Chris"]

[Black "Mordue, Tyson"]

[Result "1-0"]

[ECO "E92"]

[WhiteElo "2130"]

[BlackElo "2294"]

[Annotator "Chris Ross"]

[PlyCount "78"]

[EventDate "2004.11.21"]


{E92: King's Indian: Petrosian System}

1. d4 Nf6

2. c4 g6

3. Nc3 Bg7

4. e4 d6

5. Nf3 O-O

6. Be2 e5

7. d5 a5

8. O-O Na6

9. Nd2 Nc5

10. b3 Bd7


{So far, all down to normal King's Indian strategy.

White is striving to get space on the queen's and black is building up for a king-side attack.

The text move is in view of placing a knight on a4 once it has been pushed away with b4.

10... Bh6 11. Qc2 Ne8 12. Ndb1 Bxc1

13. Qxc1 f5 14. f3 f4 15. g4 Rf7 16. Qe1 h5 17. Kg2 hxg4 18. fxg4 Rh7 19. Rh1

Rh4 20. h3 g5

1/2-1/2 Theodoridis,G-Kokkinakis,M/Athens 2000/EXT 2001 (20)}


11. a3 Bh6


Aiming for immediate tactics on the e4 and b3 pawns.


11... c6 12. dxc6 Bxc6 13. f3 Nh5 14. Nd5 f5 15. Rb1 Ne6 16. g3 Nf6

17. Kg2 h5 18. Bd3 f4 19. b4 axb4 20. axb4 fxg3 21. hxg3 h4 22. Nb3 hxg3 23. c5

Ra2+ 24. Bc2 Nh5 25. Rh1 Bxd5 26. exd5

Sbarra,M-Gofshtein,L/Bratto 1998/EXT 2000/0-1 (29)}


12. Qc2 Qe7

13. Re1?!


{The most critical point.

White must come up with a plan and try to untangle somehow.

The text move is ready to protect the e4 pawn, give the f1 square for the knight and is almost an effective waiting move.


But in reality, it is a poor waiting move, since white doesn't have the time or position to wait around.

The tempo loss itself is crutial.

Black immediately pounces on this and exploits white's slow approach to things. In this regard, black is more than justified in striking out for the white king immediately.


I realised that the rook probably didnt' belong on e1 and would have to recapture on c1, but once again, immediate pressure on the q-side is white's only way to play on in this position.


13. Rb1 c6 14. b4 axb4 15. axb4 Na6 16. Re1 Rfc8 17. Nf1 Bxc1 18. Rexc1 c5 19.

b5 Nb4 20. Qb3 Ra5 21. Ra1 Rca8 22. Rxa5 Rxa5 23. Qb2 Qd8 24. Nd2 Qa8 25. Nb3 Ra3 26. Ra1 Rxa1+ 27. Qxa1 Qxa1+

Riis,S-Norgaard,J/DEN-chB 1988/EXT 98/1-0 (50)}


13... Ne8

14. Nf1 Bxc1

15. Raxc1


{As stated above, the other rook capture is slightly better with the rook remaining on the A file, perhaps to swap off an attacking piece on a8, as this rook soon demonstrates, it can swing very quickly into the attack.}


15... f5

 16. Nd2 Nf6

17. Bf3?


{After which, white is positionally and probably tactically lost.

The support of the e4 pawn is necessary, naturally, but the piece protection just makes the bishop a target.}


17... f4


{Correctly choosing to go for the king instead of a slow positional grind.

The pawn storm on the king-side is now just too quick and the process on the q-side made by wite is non-existent.}


18. b4 axb4

19. axb4 Na6


{Correctly opting to keep the knight on and reserve the bishop on the d7 square in order to swing the bishop across to the king-side for the attack.}


20. Na2 g5

21. Be2 g4

22. f3 Kh8


{Clearing the way for the rook's penetration.}


23. Nb3 Rg8

24. b5


{As good as resigning.

White has nothing in this position and can resign quite happily.}


24... Nc5

25. Nxc5 dxc5

26. Nc3 gxf3

27. Bxf3 Ng4


{The black pieces just storm in now for the finish.}


28. d6 cxd6

29. Nd5 Qh4

 30. Bxg4 Rxg4

31. Nb6 Rag8

32. Nxd7 f3

33. g3 Rxg3+

34. hxg3 Rxg3+

35. Kf2 Rg2+


{Quicker is

35... Qh2+ 36.

Ke3 Qh6+ 37. Kd3 f2+ 38. Ke2 Qe3+ 39. Kf1 Rg1#}


36. Ke3 Rxc2

37. Rxc2 Qxe1+

38. Kxf3 Qf1+


{Nice aesthetic finish by black.

The white king has got no squares to run to without dropping further material.
39. Kg4 Qd1+; 39. Kg3 Qd3+.}


39. Ke3 Qh3+

{Picking up the stray knight on d7. If the h7 pawn wasn't on t he board, a blockade may be possible, but as it is, the pawn does exist and further play is unnecessary.


Black gets his just rewards for playing in a precise and ambitious manner.}

40. 1-0