What is the best move for Black?

ICC tourney 1402 (12 3), Internet Chess Club
Analysis of Sherlocked (1858) vs. john2001plus (1750)

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

(black to move) 1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4 d5 6. Bg5 Be7 7. cxd5 cxd5 8. Nf3 Nc6 9. Qa4 Qb6 10. O-O Qxb2 11. Nbd2 Qb4 12. Qc2 O-O 13. Rab1 Qd6 14. Nb3 Nb4 15. Qb2 Bf5 16. Rbc1 Rac8 17. Nbd4 Be4 18. a3 Nc6 19. Qxb7 Nxd4 20. Rxc8 Nxe2+ 21. Kh1 h6 22. Rxf8+ Bxf8 23. Bd2 Qxa3 24. Nh4 g5 25. Nf3 Qxf3 26. Rg1 Ng4 27. Bxf3 Bxf3+ 28. Rg2 Nxf2#

[ 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

Black to play for checkmate

ICC tourney 1394 (12 3), Internet Chess Club
Analysis of weakfish (1372) vs. Sherlocked (1851)

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

(black to move) 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Bb5 Qb6 8. Bxc6 bxc6 9. Ne2 Ba6 10. Nf3 cxd4 11. Nfxd4 Nc5 12. O-O Ne4 13. Re1 Be7 14. Qb3 Rc8 15. Be3 Nc5 16. Qc2 Qc7 17. Ng3 g6 18. Nge2 O-O 19. Qd2 Ne4 20. Qc2 c5 21. Nf3 Rb8 22. b3 Qa5 23. Bd2 Rfd8 24. c4 Nxd2 25. Nxd2 dxc4 26. Nxc4 Qc7 27. Ng3 Rd4 28. Ne2 Rd5 29. Nc3 Bxc4 30. bxc4 Rd4 31. Nb5 Qd7 32. Nxd4 cxd4 33. Red1 Bc5 34. Rd3 h5 35. Rb1 Rb6 36. Rxb6 axb6 37. h3 Kg7 38. a4 Qa7 39. Qb3 Qa5 40. Qb5 Qe1+ 41. Kh2 Qf1 42. Rf3 Qc1 43. Qb3 d3 44. Rxd3 Qxf4+ 45. g3 Qf2+ 46. Kh1 Qg1#

[ 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 move for White?

Casual Game, https://itsyourturn.com
John Coffey vs. Eduardo

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 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 O-O 6. e3 dxc4 7. Bxc4 b6 8. Qc2 Bb7 9. a3 Nbd7 10. Rc1 Nh5 11. Bg3 Nxg3 12. hxg3 Nf6 13. e4 h6 14. e5 Nd5 15. Qe4 Rb8 16. Bd3 Nf6 17. Qf4 Nh7 18. Rxh6 Bxf3 19. Bxh7+ Kh8 20. Bd3+ Kg8 21. gxf3 f5 22. exf6 e.p. Rxf6 23. Bh7+ Kf8 24. Bg6 Bd6 25. Qh4 Ke7 26. Rh7 Qf8 27. Ne4 Kd8 28. Nxd6 cxd6 29. Rh8

[ 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