Black to play and win

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Analysis of john2001plus (1878) vs. Gusev (1717)

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

(black to move) 1. e4 e5 2. Nc3 Nc6 3. f4 d6 4. Nf3 Bg4 5. Bb5 Nf6 6. d4 exd4 7. Qxd4 Bxf3 8. gxf3 Nd7 9. Bxc6 bxc6 10. Be3 Nf6 11. e5 dxe5 12. fxe5 Nd5 13. Nxd5 Qxd5 14. Qxd5 cxd5 15. O-O-O c6 16. Rhg1 g6 17. c4 dxc4 18. Rg4 c3 19. bxc3 Ba3+ 20. Kc2 O-O 21. Ra4 Be7 22. Rxa7 Rxa7 23. Bxa7 Ra8 24. Rd7 Bg5 25. Kb3 Bf4 26. e6 fxe6 27. Bd4 e5 28. Bg1 Rb8+ 29. Kc2 Rc8 30. h3 h5 31. Rd6 g5 32. Rd7 Ra8 33. Ba7 c5 34. a4 e4 35. fxe4 g4 36. hxg4 hxg4 37. a5 g3 38. Bxc5 Rxa5 39. Bd4 Bh6 40. Rd6 Kh7 41. Rd5 Ra2+ 42. Kb3 Ra1 43. Rh5 g2 44. Be3 Rh1 45. Rxh6+ Rxh6

[ 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

Mate in 2

Shredder for iPhone
John Coffey vs. Shredder (1400)

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

(white to move) 1. Nf3 Nf6 2. d4 e6 3. c4 Bb4+ 4. Nbd2 a5 5. a3 Bd6 6. e4 Nc6 7. e5 Nxd4 8. exd6 Nf5 9. dxc7 Qxc7 10. Bd3 O-O 11. Bxf5 exf5 12. O-O d5 13. cxd5 Rd8 14. Qb3 Rxd5 15. Nc4 b5 16. Ne3 Rc5 17. Bd2 f4 18. Nd1 Be6 19. Qd3 Rd8 20. Qe2 g5 21. Qe1 b4 22. axb4 axb4 23. Bxb4 Rcd5 24. Ba5 Qc5 25. Bxd8 Rxd8 26. Qc3 Qf5 27. Qe5 Qxe5 28. Nxe5 Rd2 29. Nf3 Rd5 30. Nc3 Rc5 31. Rfe1 h5 32. Re5 Rxe5 33. Nxe5 Bb3 34. Ra3 Be6 35. b4 h4 36. h3 Kg7 37. b5 Nd5 38. Nxd5 Bxd5 39. Nc6 Kf6 40. Ra6 Be4 41. f3 Bb1 42. b6 Bd3 43. b7 Bxa6 44. b8=Q Kg6 45. Qd6+ Kh5 46. Qf6 Bc4 47. Qh8+ Kg6 48. Ne7#

[ 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 strongest continuation for Black?

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Analysis of Gusev (1760) vs. john2001plus (1815)

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

(black to move) 1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 c5 5. O-O cxd4 6. Nxd4 Nc6 7. Nxc6 bxc6 8. c4 Be7 9. cxd5 cxd5 10. Nc3 O-O 11. e4 Ba6 12. Re1 dxe4 13. Qxd8 Rfxd8 14. Bg5 h6 15. Bxf6 Bxf6 16. Bxe4 Bxc3 17. bxc3 Rac8 18. Rac1 Rd2 19. Bb1 Bd3 20. Bxd3 Rxd3 21. Re3 Rd2 22. a4 Ra2 23. Re4 Ra3 24. Rb4 a5 25. Rb7 Rxa4 26. Rd1 Rxc3 27. Rdd7 Rg4 28. Rxf7 a4 29. h3 Rg5 30. Kg2 a3 31. h4 Rg6 32. Rfd7 a2 33. Rb8+ Kh7 34. Rdd8 Rgxg3+ 35. fxg3 Rc2+ 36. Kf3 a1=Q

[ 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

White to play

Analysis
vs.

8 7 6 5 4 3 2 1 a b c d e f g h 0

(white to move) 1. Nf3 g6 2. e4 c6 3. d4 d5 4. e5 Bg7 5. Bd3 Nh6 6. Bg5 Qb6 7. O-O e6 8. Nc3 O-O 9. Na4 Qa5 10. c3 b5 11. Nc5 Nd7 12. Nxd7 Bxd7 13. Qc1 Nf5 14. g4

[ 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