What is the strongest line for Black?

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

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

(black to move) 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. Nc3 O-O 8. O-O c6 9. e4 d5 10. Ne5 dxc4 11. Nxc4 Qxd4 12. Ne3 Rd8 13. Bc1 Qxd1 14. Nexd1 Na6 15. a3 Nc5 16. Bg5 h6 17. Bf4 Ba6 18. e5 Nd5 19. Re1 Nd3 20. Nxd5 cxd5 21. Re3 g5

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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

Mate in 7

Casual Game, https://itsyourturn.com
Analysis of John Coffey vs. godzilla47

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

(white to move) 1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Rxb1 e6 5. dxe6 fxe6 6. Nf3 Nf6 7. Qb3 Nd5 8. Qxb7 Nd7 9. e4 Nd5b6 10. Qc6 Bb4+ 11. Bd2 Bxd2+ 12. Nxd2 O-O 13. Qxe6+ Kh8 14. Bd3 Re8 15. Qh3 g6 16. O-O Nf6 17. Nf3 Nh5 18. Rfd1 Nf4 19. Qg4 Nxd3 20. Rxd3 Nc4 21. b3 Na3 22. Rbd1 c6 23. Ne5 Qf6 24. Rf3 Qg7 25. Rf7 Qh6 26. Qf3 Qg5 27. Rd7 Rf8 28. Nf7+ Rxf7 29. Qxf7 Qh6 30. Qf6+ Kg8 31. Qe6+ Kh8 32. Qe5+ Kg8 33. d5 c5 34. d6 Qf8 35. Rd3 Re8 36. Rg7+ Qxg7 37. Qxe8+ Qf8 38. d7 Kg7 39. Qxf8+ Kxf8 40. d8=Q+

[ 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

Mate in 9

Casual Game, https://itsyourturn.com
Analysis of John Coffey vs. chess724

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

(white to move) 1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. Nc3 c6 5. e3 Bb4 6. Bd3 dxc4 7. Bxc4 O-O 8. O-O Nbd7 9. Re1 Bxc3 10. bxc3 h6 11. e4 Nb6 12. Bd3 Bd7 13. Bc2 a6 14. e5 Nfd5 15. Qd3 f5 16. exf6 e.p. Nxf6 17. Ne5 Nbd5 18. Bxh6 gxh6 19. Qg6+ Kh8 20. Qxh6+ Kg8 21. Rad1 Qe7 22. Rd3 Rf7 23. Rh3 Nh7 24. Nxf7 Qf6 25. Rg3+ Ng5 26. Rxg5+ Kxf7 27. Qh7+ Ke8 28. Rg8+ Qf8 29. Rxf8+ Kxf8 30. Bg6 Be8 31. Rxe6 Bxg6 32. Rxg6 Ne7 33. Qh8+ Ng8 34. Rg7 Ke8 35. Qxg8#

[ 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

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

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

(white to move) 1. Nf3 Nc6 2. d4 d5 3. c4 e6 4. Nc3 Bb4 5. Bf4 Nf6 6. e3 h6 7. Rc1 Ne4 8. Bd3 Nxc3 9. bxc3 Ba5 10. O-O O-O 11. e4 dxe4 12. Bxe4 Ne7 13. Qd2 c6 14. Bxh6 f5 15. Bd3 gxh6 16. Qxh6 Rf7 17. Ng5 Rg7 18. Nxe6 Bxe6 19. Qxe6+ Kh7 20. Bxf5+ Nxf5 21. Qxf5+ Kh6 22. Rce1 Rg6 23. Re3 Qg5 24. Rh3+ Kg7 25. Qd7+ Kf8 26. Rg3 Qh5 27. Re1 Rxg3 28. Qe7+ Kg8 29. hxg3 Rf8 30. Re5 Qf7 31. Rg5+ Kh8 32. Qe5+ Qf6 33. Qxf6+ Rxf6 34. Rxa5

[ 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

Black to play

Columbus Chess Club, Lewellen Chapel
Analysis of Steve Salo vs. John Coffey

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

(black to move) 1. d4 Nf6 2. Bf4 c5 3. Nc3 cxd4 4. Qxd4 Nc6 5. Qc4 d5 6. Qd3 e5 7. Bg5 d4 8. Ne4 Nxe4 9. Bxd8 Bb4+ 10. c3 dxc3 11. O-O-O cxb2+ 12. Kxb2 Nxf2 13. Qg3 Nxd1+ 14. Kc1 Be6 15. Qxg7 Rf8 16. Bh4 Ne3

[ 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