What is the strongest continuation for Black?

ICC tourney 1312 (12 3), Internet Chess Club
Analysis of Blacknight101 (1596) vs. xiaoqixia (1617)

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

(black to move) 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc4 Nxe4 5. d4 Be7 6. Nc3 Nf6 7. Be2 O-O 8. O-O Bf5 9. Bd3 Qd7 10. Ne3 Bxd3 11. Qxd3 d5 12. Qb5 c6 13. Qb3 Re8 14. Bd2 Bd6 15. Ne2 Ne4 16. Bb4 Bxb4 17. Qxb4 Na6 18. Qb3 Nd2 19. Qd3 Nxf1 20. Rxf1 Nc7 21. Nf4 Qd6 22. Nh3 Qg6 23. Qe2 Ne6 24. f4 Nxd4 25. Qf2 Nf5 26. Nd1 h6 27. Kh1 Re7 28. Rg1 Rae8 29. g4 Ne3 30. Nc3 Qxc2 31. Qh4 Qxb2 32. g5 Nf5 33. Qh5 Qxc3 34. gxh6 g6 35. Rg2 Re3 36. Qg4 Rxh3 37. Rf2 Re1+ 38. Kg2 Rxh6 39. Qg3 Nh4+ 40. Kh3 Nf3+ 41. Qh4 Nxh4+ 42. Kg4 f5+ 43. Kg5 Rh5#

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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

Click here for 34. Qg4.
Click here for 36. Ng1.

What is the best continuation for White?

G/10, Columbus Chess Club
Analysis of Coffey, John vs. Bemke, James

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 c6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 Be7 10. e5 Nd5 11. Ne4 a6 12. O-O c5 13. dxc5 Nxc5 14. Nxc5 Bxc5 15. Bg5 Qb6 16. Rc1 O-O 17. Bb1 h6 18. Qd3 f5 19. exf6 e.p. Nxf6 20. Bxf6 Rxf6 21. Qh7+ Kf8 22. Ne5 Rxf2 23. Rxc5 Rxf1+ 24. Kxf1 Rd8 25. Qh8+ Ke7 26. Qxg7+ Kd6 27. b4 Bc6 28. Be4 Rc8 29. Ng6 Re8 30. Qd4+ Bd5 31. Rxd5+ Kc7 32. Rd7+ Kc8 33. Qxb6 Kxd7 34. Bc6+ Kd6 35. Bxb5+ Kd5 36. Qc5+ Ke4 37. Qe5#

[ 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 28... Bxe4.
Click here for 30... Kc7.

Black to play and win.

ICC tourney 1288 (12 3), Internet Chess Club
Analysis of RMS1978 (1629) vs. yoshi (1752)

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. Nd2 c5 4. Ngf3 cxd4 5. exd5 exd5 6. Nxd4 Nc6 7. Nd2f3 Nf6 8. h3 Bd6 9. Bd3 O-O 10. O-O Re8 11. c3 Bd7 12. Be3 Rc8 13. a3 Ne5 14. Nxe5 Bxe5 15. Nf3 Bb8 16. Bd4 Ne4 17. Qc2 Qc7 18. Be3 g5 19. Rfe1 g4 20. hxg4 Bxg4 21. Be2 Bxf3 22. Bxf3 Qh2+ 23. Kf1 d4 24. Bxe4 dxe3 25. f3 Bg3 26. Red1 Qh1+ 27. Ke2 Qxg2+ 28. Kd3 e2 29. Re1 Red8+ 30. Bd5 Rxd5+ 31. Ke4 Re5+ 32. Kd3 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

White to play and win.

Live Chess, Chess.com
Analysis of LucVanDuc (1824) vs. john2001plus (1701)

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

(white to move) 1. d4 Nf6 2. f4 e6 3. e3 c5 4. c3 d5 5. Nf3 Nc6 6. Bd3 Ne4 7. Bxe4 dxe4 8. Ne5 cxd4 9. exd4 Bd6 10. O-O O-O 11. Qe2 f5 12. Nd2 Nxe5 13. fxe5 Be7 14. Nc4 b5 15. Ne3 a6 16. g3 Bb7 17. Bd2 g5 18. Ng2 Qd5 19. Be3 Rac8 20. a3 Qb3 21. Rad1 Bd5 22. Rf2 Kg7 23. Qh5 h6 24. Re1 a5 25. h4 Rh8 26. g4 f4 27. Nxf4 gxf4 28. Rxf4 Rh7 29. Rf7+ Kh8 30. Rxh7+ Kxh7 31. Bxh6 Rxc3 32. Bg5+ Kg7 33. Qh6+ Kg8 34. Qg6+ Kh8 35. Qe8+ Kg7 36. Qxe7+ Kg8 37. Qe8+ Kg7 38. Bf6+ Kh7 39. Qh8+

[ 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 28... Rcf8
Click here for 28... Rhf8

White to play.

Live Chess Chess.com, Chess.com
Analysis of john2001plus (1779) vs. rtconnor2003 (1255)

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

(white to move) 1. Nf3 Nc6 2. d4 d5 3. c4 dxc4 4. d5 Na5 5. e4 b6 6. Bxc4 Nxc4 7. Qa4+ Qd7 8. Qxc4 Bb7 9. Ne5 Qd6 10. Qb5+ c6 11. dxc6 Bxc6 12. Nxc6 Qd7 13. Nc3 e6 14. O-O Bd6 15. Rd1 Qc7 16. e5 Bc5 17. Nb8+ Kf8 18. Nd7+ Ke7 19. Ne4 Rd8 20. Bg5+ f6 21. exf6+ Nxf6 22. Ndxf6 Kf7 23. Qe2 h5 24. Qf3 Kg6 25. Rxd8 Qxd8 26. Nxh5 Qf8 27. Nf4+ Kh7 28. Rd1 Qf5 29. Qh5+ Kg8 30. Rd8+ Bf8 31. Qg6 Qxg6 32. Nxg6 Kh7 33. Nxf8+ Rxf8 34. Rxf8 a6 35. h4 Kg6 36. g4 Kh7 37. h5 e5 38. Nf6+ gxf6 39. Bxf6 b5 40. Rh8#

[ 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