What is the best line for Black?

ICC tourney 1255 (12 3), Internet Chess Club
Analysis of LiangLiang (1634) vs. yoshi (1636)

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. exd5 exd5 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. Ngf3 Nc6 8. c3 Nf6 9. Qe2+ Be7 10. dxc5 O-O 11. Nb3 Rfe8 12. Be3 Ng4 13. O-O-O Rac8 14. c4 Nb4 15. a3 Nxe3 16. fxe3 Qa4 17. Nfd4 dxc4 18. axb4 cxb3 19. Qd3 Bg5 20. Qxb3 Qxb3 21. Nxb3 Rxe3 22. Nd2 Re2 23. h4 Bh6 24. g4 f6 25. g5 fxg5 26. Nc4 gxh4+ 27. Kb1 Bg5

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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

White to play and win.

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john2001plus (1545) vs. cometomytable (1697)

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 c6 4. e3 e6 5. Bd3 Bb4+ 6. Nbd2 Nbd7 7. O-O O-O 8. a3 Be7 9. e4 dxe4 10. Nxe4 b6 11. Re1 Bb7 12. b4 Rc8 13. c5 Nxe4 14. Bxe4 Nf6 15. Bc2 h6 16. Bb2 Nd5 17. Ne5 Bf6 18. Qd3 g6 19. Nxg6 fxg6 20. Qxg6+ Bg7 21. Qxe6+ Kh8 22. Be4 Rf6 23. Qg4 Rc7 24. Bxd5 Qxd5 25. Re8+ Kh7 26. Rae1 Rcf7 27. f3 Rf4 28. Qg3 Bxd4+ 29. Kh1 Bg7 30. Bxg7 Rxg7 31. Qxf4 Qh5 32. Qe4+ Qg6 33. Qxg6+ Kxg6 34. Re1e6+ Kf5 35. g4+ Rxg4 36. fxg4+ Kg5 37. Re6e7 Ba6 38. Rxa7

[ 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

What is the best line for Black?

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Analysis of Troy8 (1988) vs. john2001plus (1854)

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

(black to move) 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 c6 5. Qc2 Bd6 6. d4 O-O 7. Nbd2 Nbd7 8. e4 dxe4 9. Nxe4 Nxe4 10. Qxe4 Nf6 11. Qh4 Qa5+ 12. Bd2 Bb4 13. Qf4 Rd8 14. O-O Bxd2 15. Nxd2 e5 16. dxe5 Qxd2 17. Qxd2 Rxd2 18. exf6 Rxb2 19. Rfe1 Be6 20. fxg7 Bxc4 21. Rab1 Rxb1 22. Rxb1 Rd8 23. a4 Kxg7 24. h4 Ba6 25. a5 Bb5

[ 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 and mate.

ICC tourney 1267 (12 3), Internet Chess Club
Analysis of yoshi (1638) vs. drabmolc (1343)

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

(black to move) 1. Nf3 d5 2. d4 f5 3. c4 e6 4. Nc3 c6 5. e3 Nf6 6. Be2 Bd6 7. O-O O-O 8. Ne5 Qe7 9. c5 Bc7 10. b4 Nbd7 11. Nxd7 Bxd7 12. b5 Ne4 13. bxc6 Nxc3 14. Qc2 Nxe2+ 15. Qxe2 bxc6 16. Qa6 Rfb8 17. Ba3 e5 18. Rab1 exd4 19. exd4 Qe6 20. Rxb8+ Rxb8 21. Qxa7 Rc8 22. Bb4 Qe4 23. Bc3 Qd3 24. Qa3 f4 25. Re1 f3 26. Qc1 fxg2 27. Re3 Qg6 28. Re7 Bxh2+ 29. Kxh2 g1=Q+ 30. Qxg1 Qh5+ 31. Kg3 Qg4+ 32. Kh2 Qh3#

[ 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.

ICC tourney 1261 (12 3), Internet Chess Club
Analysis of HighGround (1290) vs. yoshi (1635)

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

(white to move) 1. e4 e6 2. d4 d5 3. e5 c5 4. f4 cxd4 5. Nf3 Nc6 6. Bd3 Qb6 7. a3 Bd7 8. O-O Rc8 9. Nbd2 Nh6 10. Nh4 Be7 11. Qe1 Nf5 12. Nxf5 exf5 13. Kh1 O-O 14. Rf3 Na5 15. b3 Bb5 16. Bxf5 Rc3 17. Qg3 g6 18. Rxc3 dxc3 19. Nf3 d4 20. Be4 Bc6 21. Bd3 Bxf3 22. Qxf3 Qc7 23. Qg3 f5 24. a4 Nc6 25. h4 Nb4 26. h5 Kg7 27. Ba3 Nxd3 28. Qxd3 Bxa3 29. Rxa3 Qe7 30. h6+ Kxh6 31. Qh3+ Kg7 32. Ra1 Qc5 33. Qd3 Rd8 34. Kh2 Qd5 35. Re1 Kf7 36. Kg3 Kg7 37. Rh1 a6 38. Re1 b5 39. axb5 axb5 40. e6 Kf6 41. Re5 Qc6 42. e7 Re8 43. Qxd4 Kf7 44. Qd3 b4 45. Qd4 Rxe7 46. Rxe7+ Kxe7 47. Qxb4+ Kf7 48. Qd4 Kg8 49. Kf2 Kf7 50. g3 Kg8 51. Qc4+ Qxc4 52. bxc4 Kf7 53. Ke3 Kf6 54. Kd4 h6 55. Kd5 g5 56. Kd6 gxf4 57. gxf4 h5 58. c5 h4 59. c6 h3 60. c7 h2 61. c8=Q h1=Q 62. Qf8+ Kg6 63. Qg8+ Kf6 64. Qg5+ Kf7 65. Qxf5+ Kg7 66. Qe5+ Kf8 67. Qxc3 Qh6+ 68. Kd5 Qh5+ 69. Qe5 Qf7+ 70. Kc6 Qa2 71. Qc5+ Kg7 72. c4 Qa6+ 73. Kd7 Qb7+ 74. Qc7 Qa6 75. Qe5+ Kh7 76. Qe6 Qb7+ 77. Ke8 Qb8+ 78. Ke7 Qb7+ 79. Qd7 Qb2 80. Kf8+ Kg6 81. Qg4+ Kf6 82. Qg5+ Ke6 83. Qd5+ Kf6 84. 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

Pawn ending.

ICC tourney 1261 (12 3), Internet Chess Club
Analysis of HighGround (1290) vs. yoshi (1635)

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

(white to move) 1. e4 e6 2. d4 d5 3. e5 c5 4. f4 cxd4 5. Nf3 Nc6 6. Bd3 Qb6 7. a3 Bd7 8. O-O Rc8 9. Nbd2 Nh6 10. Nh4 Be7 11. Qe1 Nf5 12. Nxf5 exf5 13. Kh1 O-O 14. Rf3 Na5 15. b3 Bb5 16. Bxf5 Rc3 17. Qg3 g6 18. Rxc3 dxc3 19. Nf3 d4 20. Be4 Bc6 21. Bd3 Bxf3 22. Qxf3 Qc7 23. Qg3 f5 24. a4 Nc6 25. h4 Nb4 26. h5 Kg7 27. Ba3 Nxd3 28. Qxd3 Bxa3 29. Rxa3 Qe7 30. h6+ Kxh6 31. Qh3+ Kg7 32. Ra1 Qc5 33. Qd3 Rd8 34. Kh2 Qd5 35. Re1 Kf7 36. Kg3 Kg7 37. Rh1 a6 38. Re1 b5 39. axb5 axb5 40. e6 Kf6 41. Re5 Qc6 42. e7 Re8 43. Qxd4 Kf7 44. Qd3 b4 45. Qd4 Rxe7 46. Rxe7+ Kxe7 47. Qxb4+ Kf7 48. Qd4 Kg8 49. Kf2 Kf7 50. g3 Kg8 51. Qc4+ Qxc4 52. bxc4 Kf7 53. Ke3 Kf6 54. Kd4 h6 55. c5 g5 56. c6 Ke7 57. Ke5 gxf4 58. gxf4 h5 59. Kxf5 Kd6 60. Kg5 Kxc6 61. Kxh5 Kd6 62. f5 Ke7 63. Kg6 Kf8 64. Kf6 Kg8 65. Ke7 Kg7 66. f6+

[ 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.

Live Chess, Chess.com
Analysis of kyaw333 (1603) vs. john2001plus (1799)

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. g3 Bb4+ 4. Nd2 O-O 5. a3 Be7 6. Qc2 c5 7. dxc5 Bxc5 8. e3 Nc6 9. Bg2 Qb6 10. Nh3 Bxe3 11. fxe3 Qxe3+ 12. Kf1 Nd4 13. Qd1 Qd3+ 14. Kg1 Ne2+ 15. Kf2 Ng4+ 16. Ke1 Nd4 17. Be4 Qe3+ 18. Kf1 f5 19. Kg2 fxe4 20. Qxg4 Nc2 21. Rb1 d5 22. Rf1 Rxf1 23. Nxf1 Ne1+ 24. Kh1 Qd3 25. Nd2 e5 26. Qh4 Bxh3 27. Qxh3 Rf8 28. Kg1 Qd4+ 29. Kh1 e3 30. Nb3 Qe4+ 31. Kg1 Nf3+ 32. Kf1 Nd4+ 33. Ke1 Qh1+

[ 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

Black to play.

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Analysis of misowalker (1821) vs. john2001plus (1603)

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

(black to move) 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 h6 7. Bxe7 Qxe7 8. a3 O-O 9. Nb5 Nb6 10. Bd3 a6 11. Nc3 c5 12. Nge2 c4 13. Rh3 Nc6 14. Ng3 cxd3 15. Qxd3 f5 16. Nh5 Nc4 17. O-O-O Kh8 18. Rg3 Rg8 19. Rg6 Qxh4 20. Qh3 Qxf2 21. Nf6 Qe3+ 22. Qxe3 Nxe3 23. Rh1 Rf8 24. Ne2 Ng4 25. Nxg4 fxg4 26. Rxg4 Bd7

[ 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 and win.

Live Chess, Chess.com
Analysis of john2001plus (1845) vs. SpeedyChess11 (1705)

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

(white to move) 1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 O-O 5. Bg5 d6 6. e3 Nbd7 7. Qc2 h6 8. Bh4 c6 9. Be2 d5 10. O-O dxc4 11. Bxc4 e6 12. Ne5 g5 13. Bg3 Nd5 14. Rad1 Nxe5 15. Bxe5 f6 16. Bg3 f5 17. Be5 Bxe5 18. dxe5 Qc7 19. Nxd5 cxd5 20. Rxd5 Rf7 21. Rd6 b5 22. Bd3

[ 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