Wednesday, May 22, 2013

Asian Continental 2013 Round 5 game

[Event "Asian Continental"]
[Site "?"]
[Date "2013.05.22"]
[Round "5"]
[White "Ghaem Maghami Ehsan"]
[Black "Jimmy Liew"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2568"]
[BlackElo "2287"]

The position is about equal.


This is risky but I figured I had to take a chance if I wanted to score some points.

24. Nh4! Qc6 

Already I can say I am not calculating well enough. 24... Nf6 25. Nf5 e4 26. Qg3 Rg8 Black is holding and there are no dangerous tactics on the white diagonal


White also overlooked that my last move is a blunder 25. Qxe4 Qxe4 26. Bxe4 d5 27. cxd5 Bxh4 and white has regained his pawn with the better game

25... Bxh4

25... Nf6 26. Nf5 d5 27. Nxe7 Qc5+ 28. Qe3 Rxe7 and black remains a pawn up. An even better line shown by the computer is 25... Qc5+ 26. Be3 Qc8 27. Bd2 Nf6 28. Nf5 e4 29. fxe4 Nxe4 30. Rxe4 Qxf5 with black having the advantage

26. Rxe4 Bg3

26... Bf6 27. Bxh6 gxh6 28. Rxe5
{there is no defence to the mate on h7})

27. Rxe5 g6 28. Rd5

I overlooked this move but the resulting position is similar to 28. Rh5 immediately

28... Qc7

I analyzed the alternative which is 28... Kh7 29. f4 Qc7 30. Qxg3 Bxd5 when I mistakenly thought I was material down but in fact I overlooked that the c-pawn is pinned 31. cxd5 Qxc2 wins material

 29. Rh5 f5

More mistakes in my calculation. I though 29... Kg8 30. Bxh6 loses material but 30... Re6 31. Rg5 Bf4 32. Qc3 Re5, black is still surviving

30. Rxh6+ Kg7 31. Qd4+ Be5 32.
Qh4 Qc5+

Down to my last minute I made a final blunder. I had intended 32... Rh8 33. Re1 Bf6 but then white has the tactical 34. Rxe8 Bxh4 35. Rexh8 Be7 36. Bc3+ Kf7 37.R6h7+ Ke6 38. Rg8 Qxc4 39. Rxg6+ Kd7 40. Rgg7 winning the pinned bishop

33. Kh1 

Now I saw that my last move did not change anything. 33... Rh8 34. Rxh8 Rxh8 35. Qe7+ forks the bishop on b7

Rf7 34.Rxg6+ 1-0

Mate is coming after 34...Kxg6 35. Qh6 mate.


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