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 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. 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+ Kh6 81. Qh3+ Kg6 82. Qg4+ Kf6 83. Qg5+ Ke6 84. Qd5+ Kf6 85. 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

Click here for 65... Ke8.
Click here for 78... Qa8.
Click here for 78... Qc7+.
Click here for 79... Qg2.
Click here for 80... Kg6.

What is the best line for Black?

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 0

(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. Nf3 Rxf3 31. Qe6+ Rf7 32. Qe8+ Rf8 33. Qe6+ Kh8 34. Qh3 Qe4+ 35. Kg1 Nf3+ 36. Kg2 Nd4+ 37. Kg1 Ne2#

[ 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 12. Kd1.
Click here for 14. Kf2.
Click here for 19. Bf3.
Click here for 21. Nxe4.
Click here for 26. Nf2.
Click here for 30. Nb3.