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

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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

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?

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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

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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

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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