Black to play for mate

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Analysis of SpeedyChess11 (1735) vs. john2001plus (1877)

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. 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. Kg1 Qg3+ 39. Kf1 Bg2+ 40. Ke2 Qf3+ 41. Ke1 Qf1#

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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?

ICC tourney 1350 (12 3), Internet Chess Club
Analysis of john2001plus (1605) vs. tangent (1931)

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

(white to move) 1. Nf3 g6 2. d4 Bg7 3. c4 f5 4. e4 fxe4 5. Ng5 c5 6. dxc5 Nf6 7. Nc3 Qa5 8. Bd2 Qxc5 9. Ngxe4 Qe5 10. Bd3 O-O 11. O-O Nc6 12. Re1 Qc7 13. Rc1 b6 14. Nd5 Qd8 15. Ndxf6+ exf6 16. Nd6 f5 17. c5 Bxb2 18. Qb3+

[ 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?

ICC tourney 1346 (12 3), Internet Chess Club
john2001plus (1542) vs. IAlwaysWin (1613)

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 Nf6 3. c4 c6 4. e3 Bf5 5. Nc3 e6 6. Bd3 Bg6 7. Nh4 Nbd7 8. Nxg6 hxg6 9. Qc2 Bd6 10. h3 Qe7 11. cxd5 exd5 12. Bd2 O-O 13. O-O Rfe8 14. Rab1 a5 15. Rfe1 Ne4 16. Nxe4 dxe4 17. Bc4 b5 18. Bf1 Rec8 19. Rec1 Rc7 20. g3 c5 21. Bg2 Nf6 22. Qb3 b4 23. Qa4 c4 24. Bf1 Qe6 25. Qb5 Nh5 26. g4 Nf6 27. Bxc4 Qc8 28. Bb3 Nxg4 29. Qg5 Nh6 30. Rxc7 Bxc7 31. Rc1 Qd7 32. Qd5 Rd8 33. Qxe4 Qd6 34. Rc6 Qh2+ 35. Kf1 Qxh3+ 36. Ke1 Bb8 37. Qxg6 Qf3 38. Qg5 Rf8 39. Rxh6

[ 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

Mate in 1.

ICC tourney 1330 (12 3), Internet Chess Club
Analysis of yoshi (1727) vs. capatal1 (1362)

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

(white to move) 1. Nf3 Nf6 2. d4 d6 3. c4 c6 4. Nc3 Bg4 5. Bg5 Nbd7 6. e3 h6 7. Bh4 e6 8. h3 Bh5 9. Bd3 Be7 10. g4 Bg6 11. Bxg6 fxg6 12. Qc2 Kf7 13. O-O-O Nh7 14. Bg3 g5 15. d5 e5 16. dxc6 bxc6 17. Qf5+ Nhf6 18. Ne4 g6 19. Qe6+ Kg7 20. Nxe5 dxe5 21. Nxf6 Nc5 22. Nh5+ Kf8 23. Qxg6 Rg8 24. Qxh6+ Kf7 25. Qh7+ Kf8 26. Bxe5 Qc8 27. Bg7+ Rxg7 28. Qxg7+ Ke8 29. Qg8+ Bf8 30. Qg6+ Ke7 31. Qxg5+ Ke8 32. Qg6+ Ke7 33. Qh7+ Ke8 34. Nf6#

[ 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