What is the strongest continuation for Black?

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Analysis of Gusev (1780) vs. john2001plus (1937)

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

(black to move) 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Nxc6 dxc6 9. Qxd8+ Kxd8 10. O-O-O+ Kc7 11. Bf4+ e5 12. Bg3 h5 13. h3 h4 14. hxg4 hxg3 15. Rxh8 Bxh8 16. fxg3 Bxg4 17. Rd2 Bg7 18. Kc2 Bh6 19. Rf2 f5 20. exf5 Bxf5+ 21. Bd3 Rf8 22. Bxf5 Rxf5 23. Rxf5 gxf5 24. Kd3 e4+ 25. Ke2 Kd6 26. b3 Bg7 27. Nd1 Bd4 28. Kd2 a5 29. a3 Bc5 30. a4 Bd4 31. Kc2 Kc5 32. Kd2 Kb4 33. Kc2 b6 34. Nb2 Bxb2 35. Kxb2 e3 36. Kc2 e2 37. Kd2 Kxb3 38. Kxe2 Kxa4 39. Kf3 b5 40. cxb5 Kxb5

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Options:
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	- use short algebraic notation;
movement/animation speed: (slow) (fast)
	- show legal moves;

 

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

What is the strongest continuation for White?

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Analysis of john2001plus (1907) vs. soitgoes317 (1753)

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

(white to move) 1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 b6 8. e5 Ba6 9. Qb3 Bxf1 10. Kxf1 Nfd7 11. e6 fxe6 12. Ng5 Rxf2+ 13. Kxf2 Bxd4+ 14. Be3 Qf8+ 15. Ke2 Nc5 16. Qc4 Bxe3 17. Rhf1 Qg7 18. Nxe6 Qh6 19. Rf8+ Qxf8 20. Nxf8+ Kxf8 21. Rf1+ Kg7 22. Rf7+ Kh8 23. Qh4 h5 24. Qxe7 Bh6 25. Rh7+ Kg8 26. Qf7#

[ 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

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Analysis of john2001plus (1855) vs. soitgoes317 (1762)

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

(white to move) 1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 d6 5. O-O O-O 6. c4 Nbd7 7. Nc3 Rb8 8. e4 e5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Be3 c6 12. Bxa7 Ra8 13. Bc5 Re8 14. a4 b6 15. Qxd8 Rxd8 16. Bxb6 Rd2 17. Rfd1 Rxd1+ 18. Rxd1 Ba6 19. b3 Rc8 20. Bh3 Rb8 21. a5 Bf8 22. Na4 Nxe4 23. f3 Ng5 24. Bg2 Ne6 25. Rd7 Bb4 26. Bh3 Nd4 27. Bxd4 exd4 28. Rxd4 Bxa5 29. Rd3 Bb4 30. Bd7 c5 31. Bc6 Bb7 32. Bxb7 Rxb7 33. Rd8+ Kg7 34. Rc8 Ba5 35. Nxc5 Bb6 36. Kg2 Bxc5 37. Rxc5 Rxb3 38. f4 Rc3 39. Rc6 Kf8 40. h4 h5 41. Rc7 f6 42. c5 Ke8 43. c6 Kd8 44. Rd7+ Ke8 45. Rc7 Kd8 46. Rg7 Rxc6 47. Rxg6 Ke8 48. Rh6 Kf7 49. Rxh5 Kg6 50. Rh8 Kf5 51. Kh3 Rc1 52. h5 Re1 53. h6 Kg6 54. g4 Rh1+ 55. Kg2 Rxh6 56. f5+ Kg5 57. Rxh6 Kxh6 58. Kf3 Kg5 59. Kg3 Kh6 60. Kf4 Kg7 61. Ke4 Kf7 62. Kd5 Ke7 63. Kc6

[ 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

Click here for 56. Rxh6+.

White to play

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

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

(white to move) 1. Nf3 e6 2. d4 d5 3. c4 Nc6 4. Nc3 dxc4 5. e4 Nf6 6. Bxc4 Bb4 7. Bd3 O-O 8. e5 Nd5 9. Bxh7+ Kxh7 10. Ng5+ Kg6 11. h4 Nxc3 12. h5+ Kh6 13. bxc3 Bxc3+ 14. Kf1 Qe7 15. Qd3 Qxg5 16. Bxg5+ Kxg5 17. Qe3+ Kf5 18. Rh4 Bxa1 19. g4#

[ 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