LEARN FROM YOUR MISTAKES 1

This is a game at Sparring level against Rybka.  At move 22 the light started flashing for black. I could not find the correct move! Can you?

Sparring, BELFAST
Rybka 3 Human 1-cpu vs. FLANAGAN, SAM.

8 7 6 5 4 3 2 1 a b c d e f g h +3

(black to move) 1. c4 e5 2. g3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. O-O Be7 8. a3 O-O 9. b4 a6 10. d3 Be6 11. Bd2 Qd7 12. Rc1 Bh3 13. Bxh3 Qxh3 14. Qb3 Rad8 15. Ne4 h6 16. Rxc6 bxc6 17. Rc1 Kh8 18. Nxe5 Nd5 19. Nxc6 f5 20. Nxd8 Rxd8 21. Nc5 f4 22. Nxa6 fxg3 23. fxg3 Bf6 24. e4 Bd4+ 25. Kh1 Rf8 26. Qd1 Rf2 27. Qg1 Rxd2 28. Rd1 Rxd1 29. Qxd1 Ne3 30. Qf3 Nf1 31. Qf8+ Kh7 32. Qf5+ Qxf5 33. exf5 Be5 34. a4 Ne3 35. b5 Nxf5 36. a5 Nd4 37. b6 cxb6 38. axb6 Nc6 39. b7 Nb8 40. Nxb8 Bxb8 41. d4 Kg6 42. Kg2 Kf5 43. Kf3 g5 44. Ke3 h5 45. Kd3 Bd6 46. Ke3 h4 47. gxh4 gxh4 48. h3 Bb8 49. Kd3 Kf4 50. Kc4 Kg3 51. Kc5 Kxh3 52. d5 Kg4 53. d6 h3 54. d7 Bc7 55. d8=Q Bxd8 56. b8=Q Be7+ 57. Kd5 Bh4 58. Ke4 Bg3 59. Qg8+ Kh4 60. Kf5 h2 61. Qh7#

[ Flip the board | Reset | Options… ] Play chess online

The first lesson you learn, is how to resist the temptation to smash your computer when you see what you have missed?

Ecclesiastes 12:12
And further, by these, my son, be admonished: of making many books there is no end; and much study is a weariness of the flesh.

 

Options:
	- allow legal moves only;
	- use short algebraic notation;
movement/animation speed: (slow) (fast)
	- show legal moves;

 

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight