Black to play and win.

Casual Quick Chess, Greenwood Chess Club
Greg Marshal vs. John Coffey

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

(black to move) 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bf4 Bd6 6. Bg5 h6 7. Bxf6 Qxf6 8. Qe2+ Be6 9. Nbd2 O-O 10. O-O-O Nc6 11. Qb5 Nxd4 12. Qxb7 Rfb8 13. Qxb8+ Rxb8 14. Nb3 Nxf3 15. gxf3 Be5 16. Rd3 c5 CHECK!

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Click here for 14. Nxd4.

What is the strongest line for White?

ICC 30 0 u, Internet Chess Club
Analysis of john2001plus (1868) vs. fiddler (1728)

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 e6 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Qa5 8. Bd6 Bxd6 9. cxd6 Rd8 10. Be2 Rxd6 11. O-O Nc6 12. a3 a6 13. b4 Qd8 14. c5 Rd7 15. Na4 Rb8 16. Nb6 Re7 17. Qc2 Nd7 18. Ng5 g6 19. Nxd7 Bxd7 20. Rfd1 Be8 21. Ne4 Na7 22. Qc3 e5 23. Nf6+ Kg7 24. Rxd5 Qc7 25. Rd6 Rc8 26. Qb2 Bc6 27. f4 Re6 28. fxe5 Qe7 29. Bg4 Rxd6 30. cxd6 Qd8 31. Bxc8

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Pawn promotion:
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	- Knight

White to play.

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

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

(white to move) 1. Nf3 d6 2. e4 e5 3. d4 Bg4 4. Be3 exd4 5. Qxd4 Nc6 6. Qd2 Qf6 7. Nd4 Nxd4 8. Bxd4 Qe6 9. Nc3 c6 10. f3 Bh5 11. O-O-O b5 12. Nxb5 cxb5 13. Bxb5+ Ke7 14. e5 dxe5 15. Bxe5 f6 16. Bc4 Qc6 17. Bxf6+ Nxf6 18. Rhe1+ Ne4 19. Rxe4+ Kf6 20. Qf4+ Kg6 21. Bf7#

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Options:
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Pawn promotion:
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	- Rook
	- Bishop
	- Knight

White to play and win

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

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

(white to move) 1. Nf3 d6 2. e4 e5 3. d4 Bg4 4. Be3 exd4 5. Qxd4 Nc6 6. Qd2 Qf6 7. Nd4 Nxd4 8. Bxd4 Qe6 9. Nc3 c6 10. f3 Bh5 11. O-O-O b5 12. Nxb5 cxb5 13. Bxb5+ Ke7 14. Qg5+ Nf6 15. Bxf6+ gxf6 16. Qxh5 Qxa2 17. Rxd6 Kxd6 18. Rd1+ Kc7 19. c4 Ba3 20. Qxf7+ Kb8 21. Qxf6 Rg8 22. Qe5+ Bd6 23. Qxd6+ Kc8 24. Bd7+ Kb7 25. Bc6+ Ka6 26. Bxa8+ Ka5 27. Qc5+ Ka4 28. Qb5#

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Options:
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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

White to play and win.

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

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

(white to move) 1. Nf3 d6 2. e4 e5 3. d4 Bg4 4. Be3 exd4 5. Qxd4 Nc6 6. Qd2 Qf6 7. Nd4 Nxd4 8. Bxd4 Qe6 9. Nc3 c6 10. f3 Bh5 11. O-O-O b5 12. Nxb5 cxb5 13. Bxb5+ Ke7 14. Qg5+ Nf6 15. Bxf6+ gxf6 16. Qxh5 Qxa2 17. Rxd6 Kxd6 18. Rd1+ Kc7 19. c4 Ba3 20. Qxf7+ Kb8 21. Qxf6 Bxb2+ 22. Qxb2 Qxb2+ 23. Kxb2 Kc7 24. Rd7+ Kb6 25. e5 Rad8 26. f4 Rxd7 27. Bxd7 Kc7 28. e6 Rg8 29. g3 Kd8 30. c5 Ke7 31. f5 Rf8 32. g4 h6 33. Kc3 a5 34. c6 Kd8 35. c7+ Kxc7 36. e7

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Pawn promotion:
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	- Rook
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	- Knight

White to play and win.

Live Chess, Chess.com
SpeedyChess11 (1854) vs. maybeswap (1907)

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

(white to move) 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. c3 Nf6 5. d3 d6 6. O-O O-O 7. h3 d5 8. exd5 Nxd5 9. Re1 Bf6 10. Nbd2 Bf5 11. Ne4 Re8 12. Bxd5 Qxd5 13. Nxf6+ gxf6 14. d4 Rad8 15. Bh6 Kh8 16. dxe5 fxe5 17. Nh4 Be6 18. Qh5 e4 19. Bg5 Rg8 20. Bf6+ Rg7 21. Qh6 Rdg8 22. Re3 Ne5 23. c4 Qd6 24. Bxg7+ Rxg7 25. Rg3 Ng6 26. Nxg6+ fxg6 27. Re3 Bxc4 28. Rxe4 Bd5 29. Re8+ Bg8 30. Rae1 Qd5 31. Qf4 Qxa2 32. Qf8 Qxb2 33. Re1e7 Qc1+ 34. Kh2 Qh6 35. Rxg7 Qxg7 36. Qxg7+ Kxg7 37. Ra8 a6 38. Rc8 Bd5 39. Rxc7+ Kh6 40. Rc5 Bc6 41. Rc3 Kg7 42. f4 Kf6 43. g4 h6 44. Kg3 h5 45. gxh5 gxh5 46. Kh4 Kf5 47. Rc4 Bd5 48. Rc5 Ke6 49. Kxh5 Kd6 50. Rc1 b5 51. Kg5 a5 52. f5 a4 53. h4 a3 54. h5 a2 55. h6 Ke7 56. Rc7+ Kf8 57. Rc8+ Kf7 58. Rc1 Kg8 59. Kg6 Bf7+ 60. Kf6 b4 61. Rg1+ Kh7 62. Kxf7 Kxh6 63. Ke6 b3 64. f6 b2 65. f7 b1=Q 66. f8=Q+ Kh5 67. Qh8+

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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

Black to pay and win.

Live Chess, Chess.com
Analysis of Highratingcrusher (1868) vs. shootfilm (1990)

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

(black to move) 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. e3 cxd4 5. exd4 Nf6 6. Nf3 O-O 7. Bd3 d5 8. O-O dxc4 9. Bxc4 Bg4 10. Be3 Nc6 11. d5 Ne5 12. Be2 Nxf3+ 13. Bxf3 Bxf3 14. Qxf3 Qa5 15. Rad1 Qb4 16. Rd2 Ne8 17. a3 Qa5 18. Bd4 Bxd4 19. Rxd4 Nd6 20. Re1 Rfe8 21. Red1 Rac8 22. g4 Qc5 23. Ne4 Qc2 24. Nxd6 exd6 25. Rd4d2 Re1+ 26. Rxe1 Qxd2 27. Re7 Rf8 28. Kg2 Qxb2 29. Rd7 Qb6 30. Qf6 Qc5 31. Qxd6 Qxd6 32. Rxd6 Rb8 33. Rd7 Kf8 34. Rc7 Ke8 35. Kf3 a6 36. Ke4 b5 37. Ke5 a5 38. Rc1 b4 39. axb4 axb4 40. Rb1 Kd7 41. Kf6 Kd6 42. Kxf7 Rb7+ 43. Kf6 Kxd5 44. h4 Ke4 45. h5 gxh5 46. gxh5 Kf3 47. Rb2 b3 48. Kg5 Rb6 49. h6 Ke4 50. f4 Rg6+ 51. Kh5 Rg3 52. Kh4 Kxf4 53. Rf2+ Rf3 54. Rb2 Ke4 55. Kg4 Rd3

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Options:
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Pawn promotion:
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	- Knight

Black to play and draw.

Live Chess, Chess.com
Analysis of Highratingcrusher (1868) vs. shootfilm (1990)

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

(black to move) 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. e3 cxd4 5. exd4 Nf6 6. Nf3 O-O 7. Bd3 d5 8. O-O dxc4 9. Bxc4 Bg4 10. Be3 Nc6 11. d5 Ne5 12. Be2 Nxf3+ 13. Bxf3 Bxf3 14. Qxf3 Qa5 15. Rad1 Qb4 16. Rd2 Ne8 17. a3 Qa5 18. Bd4 Bxd4 19. Rxd4 Nd6 20. Re1 Rfe8 21. Red1 Rac8 22. g4 Qc5 23. Ne4 Qc2 24. Nxd6 exd6 25. Rd4d2 Re1+ 26. Rxe1 Qxd2 27. Re7 Rf8 28. Kg2 Qxb2 29. Rd7 Qb6 30. Qf6 Qc5 31. Qxd6 Qxd6 32. Rxd6 Rb8 33. Rd7 Kf8 34. Rc7 Ke8 35. Kf3 a6 36. Ke4 b5 37. Ke5 a5 38. Rc1 b4 39. axb4 axb4 40. Rb1 Kd7 41. Kf6 Kd6 42. Kxf7 Rb7+ 43. Kf6 Kxd5 44. h4 Ke4 45. h5 gxh5 46. gxh5 Kf3 47. Rb2 b3 48. Kg5 Rb6 49. h6 Ke4 50. f4 Kd3 51. f5 Kc3 52. Rb1 b2 53. f6 Rb5+ 54. Kf4 Kc2 55. Rxb2+ Kxb2 56. f7 Rb8 57. Kf5 Kc3 58. Kf6 Kd4 59. Kg7 Rb7 60. Kg8 Rxf7 61. Kxf7 Ke5 62. Kg7 Ke6 63. Kxh7 Kf7 64. Kh8 Kf8 65. h7 Kf7

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Options:
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Pawn promotion:
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	- Rook
	- Bishop
	- Knight

Click here for 60... Rb8+.

What is the best move for Black?

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

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

(black to move) 1. e4 e6 2. e5 d6 3. Nf3 dxe5 4. Nxe5 Bd6 5. Nf3 Nf6 6. Be2 O-O 7. h3 c5 8. b3 e5 9. Bb2 e4 10. Nh2 Bxh2 11. Rxh2 Qd6 12. Rh1 Nc6 13. Nc3 Nd4 14. d3 Nxe2 15. Nxe2 exd3 16. cxd3 Bf5 17. Bxf6 Qxf6 18. Rc1 Rad8 19. Rc3 Rfe8 20. Kf1 Bxd3 21. Rxd3 Rxd3 22. Qc1 Qb2 23. Qe1 Rxe2 24. Qxe2 Qb1+ 25. Qe1 Rd1 26. Ke2 Qd3#

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Options:
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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight