White to play and win

ICC tourney 1429 (12 3), Internet Chess Club
IAlwaysWin (1575) vs. john2001plus (1697)

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

(white to move) 1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. g3 Bb4+ 5. Nbd2 Bb7 6. Bg2 O-O 7. O-O d5 8. Ne5 Nc6 9. Nxc6 Bxc6 10. Qc2 Bb7 11. a3 Be7 12. b4 c6 13. Bb2 a5 14. Bc3 axb4 15. axb4 Qc7 16. c5 b5 17. Ra5 Rxa5 18. bxa5 Ba6 19. Nf3 Ne4 20. Bb4 f6 21. Bh3 e5 22. Rd1 Bc8 23. Bxc8 Qxc8 24. Ra1 Qf5 25. a6 Nxg3 26. Qxf5 Nxf5 27. dxe5 fxe5 28. a7 Ra8 29. Nxe5 Bf6 30. f4 Nd4 31. Ra6 Nxe2+ 32. Kf2 Nxf4 33. Nxc6 Nd3+ 34. Ke2 Nxb4 35. Nxb4 Be7 36. Nd3 Kf7 37. Kd2 d4 38. Kc2 Ke8 39. Kb3 Kd8 40. Kb4 Kc8 41. Kxb5 Kb7 42. Rb6+ Kxa7 43. Nb4 Rc8 44. Nc6+ Rxc6 45. Kxc6

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

 

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

 

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

What is the best continuation for Black?

Live Chess, Chess.com
Analysis of SpeedyChess11 (1735) vs. john2001plus (1877)

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

(black to move) 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Nge7 8. Nc3 Nf5 9. Na4 Bb4+ 10. Kf1 Qd8 11. a3 Be7 12. g3 O-O 13. Kg2 Bd7 14. Nc3 Rc8 15. h4 f6 16. h5 fxe5 17. dxe5 h6 18. Bf4 Qb6 19. Nxd5 Qd8 20. Nc3 Ncd4 21. Nxd4 Nxd4 22. Bd3 Rxc3 23. bxc3 Bc6+ 24. Kh3 Bxh1 25. cxd4 Bc6 26. Bc2 Bg5 27. Qg4 Qxd4 28. Qxe6+ Rf7 29. Rd1 Qxf2 30. Rd5 Qf1+ 31. Kh2 Qe2+ 32. Kg1 Qxc2 33. Qg6 Qc4 34. Rd6 Qc5+ 35. Kf1 Qc1+ 36. Kf2 Rxf4+ 37. gxf4 Qxf4+ 38. Ke2 Bb5+ 39. Rd3 Qe3+ 40. Kd1 Ba4+ 41. Rb3 Qd2#

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

 

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

 

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight