White to play

Casual Game, https://itsyourturn.com
Analysis of John Coffey vs. Wayne33

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

(white to move) 1. Nf3 f6 2. e4 e5 3. Nxe5 fxe5 4. Nc3 Nf6 5. f4 Bc5 6. fxe5 Nxe4 7. Nxe4 Qh4+ 8. Ng3 O-O 9. d4 Bxd4 10. Bc4+ Kh8 11. Rf1 Rxf1+ 12. Kxf1 Nc6 13. Qf3 Qe7 14. Bg5 Qe8 15. Re1 h6 16. Bf7 Qf8 17. Qh5 Nxe5 18. Rxe5 Bxe5 19. Bxh6 gxh6 20. Qxe5+ Kh7 21. Qf5+ Kg7 22. Nh5+ Kh8 23. Qf6+ Kh7 24. Bg6+ Kg8 25. Bh7+ Kxh7 26. Qxf8

[ 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 mate

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. Ke2 Bb5+ 37. Kf2 Qf1+ 38. Ke3 Bxf4+ 39. Ke4 Qe2+ 40. Kd4 Qxe5#

[ 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 line for Black?

ICC tourney 1425 (12 3), Internet Chess Club
Analysis of john2001plus (1703) vs. tangent (1920)

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

(black to move) 1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. e3 Be7 8. Bd3 O-O 9. Qc2 h6 10. Nxd5 exd5 11. b4 c6 12. O-O a5 13. Bd2 a4 14. Rac1 Qc8 15. Ne5 Bd6 16. Bf5 Qc7 17. f4 c5 18. b5 Qe7 19. Rf3 Bc8 20. Rcf1 c4 21. Bxc8 Rxc8 22. Qf5 Rc7 23. Bb4 Bxb4 24. axb4 a3 25. Nc6 Qe4 26. Qe5 Rxc6 27. bxc6 Nxc6 28. Qxe4 dxe4 29. Rf3f2 Nxb4 30. Ra1 c3 31. Rff1 a2 32. Rfc1 Nd5 33. Rc2 b5 34. Rcxa2 Rxa2 35. Rxa2 b4

[ 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.

ICC tourney 1421 (12 3), Internet Chess Club
Analysis of ThePontiff (1371) vs. john2001plus (1689)

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

(white to move) 1. d4 e6 2. Nf3 Nf6 3. Bg5 h6 4. Bh4 g5 5. Bg3 b6 6. Nbd2 Bb7 7. e3 Bg7 8. Bd3 d6 9. c3 O-O 10. O-O Nbd7 11. h3 Re8 12. Re1 e5 13. dxe5 Nxe5 14. Nxe5 dxe5 15. Bc4 Ne4 16. Nxe4 Bxe4 17. Qxd8 Raxd8 18. Rad1 c6 19. Bb3 Bd5 20. c4 Be6 21. Rxd8 Rxd8 22. Kf1 b5 23. cxb5 Bxb3 24. axb3 cxb5 25. Ke2 f5 26. Rd1 Rxd1 27. Kxd1 f4 28. exf4 exf4 29. Bh2 Bxb2 30. Kc2 Bd4 31. f3 Kf7 32. Kd3 Bc5 33. Ke4 Ke6 34. g3 Bd6 35. gxf4 Bxf4 36. Bxf4 gxf4 37. b4 Kd6 38. Kxf4 Kd5 39. Ke3 Kc4 40. f4 Kxb4 41. Kd4 Ka4 42. f5 b4 43. f6 b3 44. Kc3 Ka3 45. f7 b2 46. f8=Q+ Ka2 47. Qf2

[ 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