[Site "?"]
[Date "2011.07.10"]
[Round "5"]
[White "Camilia Johari"]
[Black "Jimmy Liew"]
[Result "0-1"]
[ECO "D64"]
1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Qc2 e6 5. Bg5 Be7 6. e3 O-O 7. Nc3 Nbd7 8. Rc1
h6 9. Bh4 Re8 10. cxd5
White avoids the Lasker freeing manouevre after 10. Bd3 dxc4 11. Bxc4 Nd5 forcing some exchanges of minor pieces.
10... exd5 11. Bd3
Young Camilia has played the opening moves sensibly and getting ready to complete her development with castling. The position is then equal or maybe with a slight edge for white. I'm not happy with my position and felt I had to do something to unbalance the game.
c5 ?! 12. O-O c4 13. Bf5 a6 14. Bxd7 ?!
White had a slight edge due to the weakness of the black queen-side pawns. But it was nnnecessary to give up the bishop. Maybe white thought she was winning the d5 pawn.
Qxd7 15.Ne5 Qd8 = 16. Qe2
This and the next moves shows Camilia has no idea how to play this position. White should play 16. b3 since black cannot reply with ...b5 since 17. Nc6 exchanges off the bishop.
Be6 17. a4 Rc8 18. b3 ?? cxb3 19. Qb2 Ne4
The engine shows that 19... Qd6 is very strong 20. Qxb3 g5 21. Bg3 Qa3 22. Qxa3 Bxa3 23. Rc2 Bf5 wins material)
20. Bxe7 Qxe7 21. f3 Nxc3 22. Rxc3 Rxc3 23. Qxc3 Bf5 24. Re1
The computer points out that 24. Qxb3 f6 25. e4 saves White because of the pin on the d5 pawn. ( But not 25. Qxd5+ Be6 winning material for black) 25... fxe5 26. exf5 Qd7 27. dxe5
Rxe5 28. f6 gxf6 29. Rb1 Re7 30. Rd1 and White wins back his pawn or force a
repetition.
24... f6 25. Nd3 Bxd3 26. Qxd3 Qb4 27. Rb1 Rc8 28. Qf5 Qc4 ??
A careless move that throws away the win. 28... Rc3 29. Qxd5+ Kh8 now White cannot meet the simple threat of ...b2 and ...Rc1 )
29. Rxb3
Camilia does not miss the chance. Now the game is equal again. Black cannot do much since his d5 pawn is too weak and his king-side is rather weak. For example. 29..Rc7 30. Rb1 b5? 31. axb5 axb5 32. Ra1 (threatening check on back rank) Qc6 32. h4 (Black has no threats so the pawn goes to h5 to control more squares around the black king as well as free a safety square on h2 for white king) If now 33...b5 then 34 Ra5 Rd7 35. Rc5 Qb7 36. Qd3 and the b-pawn is in danger of falling.
At this point I had to decide whether to play the safe ..Rc7 or try for more. I calculated that white can defend his position and probably end up with two extra pawns. But this is rapid and keeping initiative and putting pressure on your opponent can be worth a pawn or two.
29... Qc1+ !? 30. Kf2 Rc2+
There is still a last chance to bail out with a draw with 30... Qc2+ 31. Qxc2 Rxc2+ 32. Kg3 Rc7 33. Rb6 Rd7
31. Kg3 Qd2 32. Qxd5+ Kh8 33. f4 Rc8 34. Qxb7
The game will get very complex if white tries to mate black with 34. Rxb7 e.g
34. Rxb7 Qxe3+ 35. Kg4 Qe2+ 36. Kh4 ??( Best is 36.Kh3 h5 37. Qf5 Rc3+ 38. g3
Rxg3+ ! 39. Kxg3 Qe3+ 40. Kh4 Qf2+ 41. Kxh5 Qxh2+ 42. Kg4 Qg2+ with perpetual. If white tries to flee with 36. Kf5 Qh5+ 37. Ke6 Re8+ 38. Kd6 Rd8+ winning material for black 36... g5+ 37. fxg5 hxg5+ 38. Kh3 Rc3+ 39. g3 Qh5+ 40. Kg2 Rc2+ followed by mate on the back rank.
Re8 35. Qf3 Qc2 36. Ra3 Qb2 37. Rd3 Qc2 38. Ra3 Qb2 39. Rd3 Qc2 40. Ra3 Qb2
Just testing if white is satisfied with repetition.
41. Qc6 ! Rd8 42.Qc3 Qb1 43. Rb3 Qd1 44. Qd3 Qe1+ 45. Kf3 Qh4 46. g3 ??
White cracks under time pressure and loses an important pawn.
Qxh2 47. Qg6 Qh1+ 48.Kf2 Qh2+ ?
I missed the winning move in time pressure
49. Kf3 Qh1+ 50. Kf2
It was necessary to play 50.Ke2 and shelter the king on d3. I did not see a mate after this.
50...Rc8
Black wins now
51. a5 Rc2+ 52. Qxc2 Qh2+ 53. Kf3 Qxc2 0-1
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