What is the strongest line 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 0

(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 h5 18. Nxf5 Rxf5 19. Bxf5 gxf5 20. Qb3+ Kh8 21. Qf7 Ba6 22. Bc3 Qg5 23. cxb6 axb6 24. Re8+ Rxe8 25. Bxg7+ Qxg7 26. Qxh5+ Kg8 27. Qxe8+ Qf8 28. Qxd7

[ 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

Click here for 27... Kh7.
Click here for 16... Kh8.
Click here for 17... Bxb2.
Click here for 18... gxf5.
Click here for 20... Kf8.
Click here for 27... Kh7.

What is the strongest line for Black?

Live Chess, Chess.com
Analysis of bigpawn63 (1490) vs. john2001plus (1872)

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

(black to move) 1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bg5 h6 6. Bh4 g5 7. Bg3 Bd6 8. Ne5 c5 9. c3 cxd4 10. Bb5+ Nbd7 11. Nxd7 Bxd7 12. Bxd7+ Qxd7 13. Bxd6 Qxd6 14. Qxd4 Qe6+ 15. Kd1 Qg4+ 16. Kc2 Qf5+ 17. Kb3 O-O 18. Re1 Rfd8 19. Nd2 Rac8 20. Re5 Qg4 21. Qxa7 d4 22. c4 Ra8 23. Qc5 Nd7 24. Qd5 Nxe5 25. Qxe5 Qxg2 26. Ne4 Qf3+ 27. Kb4 Ra6 28. Nc5 Rb6+ 29. Ka4 Ra8+ 30. Na6 Raxa6+ 31. Qa5 Qc6+ 32. Ka3 Rxa5#

[ 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 22. h3.
Click here for 22. Nf3.
Click here for 27. Kc2.

Black to play for a winning advantage

Live Chess, Chess.com
Analysis of Mustangcoffee (1523) vs. john2001plus (1840)

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

(black to move) 1. e4 e6 2. c4 d5 3. cxd5 exd5 4. exd5 Nf6 5. Bb5+ Bd7 6. Bc4 Bg4 7. Nf3 Nxd5 8. Qe2+ Be7 9. h3 Be6 10. Nc3 Nf4 11. Qf1 Nxg2+ 12. Qxg2 Bxc4 13. Qxg7 Bf6 14. Qh6 Nc6 15. Qe3+ Qe7 16. d3 Be6 17. Bd2 O-O-O 18. Ke2 Rhe8 19. Rhe1 Bxc3 20. Bxc3 Qd7 21. Kd1 Bxh3 22. Qd2 Bg4 23. Kc2 Bxf3 24. Re3 Rxe3 25. Qxe3 Bg4 26. Rc1 Bf5 27. Rd1 Nb4+ 28. Bxb4 Qa4+ 29. Kc1 Qxb4 30. Qxa7 Qf4+ 31. Qe3 Qa4 32. a3 Rd6 33. Qe2 Bg4 34. f3 Qc6+ 35. Qc2 Qxf3

[ 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 19. Kf1.

White to play and win

Live Chess, Chess.com
Analysis of john2001plus (1762) vs. taechess (1642)

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 d5 3. c4 c6 4. Nc3 Bf5 5. cxd5 cxd5 6. Qb3 Qd7 7. Ne5 Qc7 8. e4 Bd7 9. Bf4 Qb6 10. Qxb6 axb6 11. Nxd7 Nbxd7 12. e5 Ng8 13. Nxd5 Kd8 14. e6 fxe6 15. Nc7 Rc8 16. Nxe6+ Ke8 17. Bb5 Ngf6 18. O-O Rc2 19. b4 g6 20. Rfc1 Rb2 21. Ng5 e6 22. Rc8+ Ke7 23. Re1 e5 24. Bxe5 Bh6 25. Bc7+ Ne4 26. Rxe4+ Kf6 27. Bd8+ Rxd8 28. Nxh7+ Kf5 29. Bd3 Nf6 30. Re5+ Kf4 31. g3+ Kf3 32. Bf1 Be3 33. Rxe3+ Kg4 34. Re5 Rxf2 35. Kxf2 Ne4+ 36. Rxe4+ Kf5 37. Re5+

[ 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

Click here for 28... Kf7
Click here for 29... Bf4
Click here for 30... Kg4
Click here for 32... Rxf3

Black to play and win

FIDE World Cup (Women), Krasnaya Polyana (Sochi) RUS
Analysis of Goryachkina, Aleksandra (2596) vs. Kosteniuk, Alexandra (2472)

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

(black to move) 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 a6 6. O-O Nc6 7. Be3 Nd5 8. Qc1 Nxe3 9. Qxe3 Be7 10. Rc1 O-O 11. Rxc4 Bd7 12. a3 a5 13. Nbd2 a4 14. Ne5 Na5 15. Rc2 Bb5 16. Re1 Ra6 17. h4 Rd6 18. Qc3 c6 19. e3 f6 20. Nef3 e5 21. b4 axb3 e.p. 22. Nxb3 Nxb3 23. Qxb3+ Kh8 24. a4 Ba6 25. dxe5 Rd3 26. Rc3 Rxc3 27. Qxc3 fxe5 28. Qxe5 c5 29. h5 c4 30. h6 Bf6 31. hxg7+ Bxg7 32. Qh5 Qf6 33. Ng5 Qxf2+ 34. Kh2 Qc2 35. e4 h6 36. Nf7+ Kg8 37. Qd5 c3 38. Nxh6+ Kh7 39. Nf7 Qf2 40. Ng5+ Kg6 41. Rh1 Qd4 42. Nh3 Qxd5 43. exd5 Bh6 44. Re1 Bd3 45. Nf4+ Bxf4 46. gxf4 Rxf4 47. d6 Rxa4 48. Bxb7 Rd4 49. Kg3 Bf5 50. Bf3 c2 51. Rc1 Kf6 52. Kf2 Ke5 53. Ke3 Rd3+ 54. Ke2 Rxd6 55. Ke1 Kd4 56. Bd1 Ke3 57. Rxc2 Bxc2 58. Bxc2 Rd2 59. Bf5 Rf2 60. Be6 Rf6 61. Bd5 Rd6 62. Bb3 Rb6 63. Bc2 Ra6 64. Kf1 Ra1+ 65. Kg2 Ra2

[ 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 55. Ke3.
Click here for 56. Bg4.
Click here for 57. Bxc2.

What is the strongest continuation for Black?

Live Chess, Chess.com
Analysis of aherring74 (1957) vs. john2001plus (1844)

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

(black to move) 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nce2 c5 6. c3 Nc6 7. f4 Be7 8. Nf3 O-O 9. Be3 f6 10. Qd2 fxe5 11. fxe5 Bh4+ 12. Nxh4 Qxh4+ 13. g3 Qe4 14. Rg1 cxd4 15. cxd4 Rf3 16. Bh6 gxh6 17. Rd1 Ndxe5 18. dxe5 Bd7 19. Bg2 Nxe5 20. Qd4 Qf5 21. Nf4 Rc8 22. Bh3 Qf6 23. Rg2 Rd3 24. Qxd3 Nxd3+ 25. Nxd3 Bb5 26. Rf2 Qg6 27. Rfd2 Rf8 28. Bg2 Qf6 29. Nf4 e5 30. Bf1 exf4 31. Bxb5 Qe7+ 32. Kf1 fxg3+ 33. Kg2 Qe4+ 34. Kg1 Qe3+ 35. Kh1 Qf3+ 36. Kg1 Rf5 37. Be8 gxh2+ 38. Kxh2 Rg5 39. Rg1 Qf4+ 40. Kh1 Qh4+ 41. Rh2 Qe4+ 42. Rhg2 Kh8 43. a3 Rg4 44. Kh2 Rh4+ 45. Kg3 Qf4#

[ 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

Click here for 16. Bf2.
Click here for 17. Bg2.

What is the strongest continuation for Black?

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

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

(black to move) 1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 O-O 5. Nf3 Re8 6. Bb2 d5 7. c4 Bg4 8. Be2 dxc4 9. Bxc4 Qe7 10. h3 Bh5 11. O-O c5 12. g4 Bg6 13. a3 Ba5 14. d3 Nc6 15. e4 Rad8 16. Nbd2 a6 17. a4 Nd7 18. Bd5 Nde5 19. Bxe5 Nxe5 20. Nxe5 Qxe5 21. f4 Qd4+ 22. Kg2 Qxd3 23. Rf3 Rxd5 24. exd5 Re2+ 25. Kg3 Qxd2 26. Qxd2 Rxd2 27. Rc1 Bc2 28. Re3 Kf8 29. d6 Bxa4 30. Ra3 Rd4 31. Rxc5 Be1+ 32. Kf3 Bc6+ 33. Rxc6 bxc6 34. Rxa6 Rxd6

[ 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

Click here for 25. Kh1.
Click here for 25. Kg1.
Click here for 25. Kf1.
Click here for 25. Rf2.
Click here for 25. Qxe2.
Click here for 25. Ke2.
Click here for 27. f5.
Click here for 33. Ke2.