What is the best move for Black?

Live Chess, Chess.com
Analysis of TainaYamada (1545) vs. john2001plus (1702)

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

(black to move) 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Bb7 6. Bd3 O-O 7. O-O Bxc3 8. bxc3 d6 9. e4 Bxe4 10. Bxe4 Nxe4

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

 

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.

ICC tourney 1172 (12 3), Internet Chess Club
yoshi (1702) vs. Chessguru (1033)

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

(white to move) 1. Nf3 d5 2. d4 Bg4 3. Ne5 Bh5 4. c4 c6 5. Qb3 Qb6 6. Qh3 Nf6 7. Qc8+ Qd8 8. Qxb7 Nbd7 9. Nxd7 Nxd7 10. Qxc6 dxc4 11. e3 Rc8 12. Qa4 e6 13. Bxc4 Be7 14. O-O O-O 15. Nd2 Nb6 16. Qa5 Nxc4 17. Qxh5 Nxd2 18. Bxd2 Bf6 19. Rac1 g6 20. Qf3 Bg7 21. Rxc8 Qxc8 22. Rc1 Qd7 23. Qc6 Qxc6 24. Rxc6 Ra8 25. b4 a6 26. a4 Bf8 27. Kf1 Kg7 28. Bc3 Kg8 29. b5 axb5 30. axb5 Rb8 31. b6 Be7 32. e4 Bd8 33. Ba5 Kf8 34. b7 Ke8 35. Rc8 Kd7 36. Rxb8 Bxa5 37. Rf8 Bc7 38. Rxf7+ Kc6 39. d5+ Kxb7 40. d6

[ 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 and win.

itsyourturn.com, ?
Coffey, John vs. Perrine, Robert

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

(white to move) 1. d4 d5 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Nbxd2 Ne7 6. Rc1 O-O 7. e3 c6 8. Bd3 Nd7 9. O-O Ng6 10. Re1 a6 11. Qc2 Nb6 12. Bxg6 fxg6 13. Ne5 Nd7 14. Nd3 Qf6 15. Nf3 b5 16. cxb5 cxb5 17. h4 a5 18. Qc6 Rb8 19. Qc7 a4 20. Nde5 Nxe5 21. dxe5

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

 

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 and win.

Bullet game., Chess.com
Analysis of john2001plus (1040) vs. spiderjenkins (1214)

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

(white to move) 1. Nf3 d5 2. d4 e6 3. c4 Nf6 4. Nc3 dxc4 5. Bg5 Be7 6. e3 O-O 7. Bxc4 h6 8. O-O Bd7 9. Bxf6 Bxf6 10. e4 e5 11. dxe5 Bg5 12. Nxg5 Qxg5 13. f4 Qd8 14. Rc1 Be6 15. Bxe6 fxe6 16. Qxd8 Rxd8 17. f5 Nc6 18. f6 Nxe5 19. Nb5 c6 20. Nc7 Rac8 21. Nxe6 Re8 22. Nxg7 Red8 23. Nf5 Nf7 24. Rce1 Ra8 25. e5 Rd5 26. e6 Ne5 27. Ne7+

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

 

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 and win.

Bullet game., Chess.com
Analysis of john2001plus (1040) vs. spiderjenkins (1214)

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

(white to move) 1. Nf3 d5 2. d4 e6 3. c4 Nf6 4. Nc3 dxc4 5. Bg5 Be7 6. e3 O-O 7. Bxc4 h6 8. O-O Bd7 9. Bxf6 Bxf6 10. e4 e5 11. dxe5 Bg5 12. Nxg5 Qxg5 13. f4 Qd8 14. Rc1 Be6 15. Bxe6 fxe6 16. Qxd8 Rxd8 17. f5 Nc6 18. f6 Nxe5 19. Nb5 c6 20. Nc7 Rac8 21. Nxe6 Re8 22. Nxg7 Red8 23. Nf5 Nf7 24. Rce1 Ra8 25. e5 Rd5 26. e6 Ne5 27. f7+ Kf8 28. e7+ Kxf7 29. Ne3+

[ 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