What is the strongest line for White?

ICC tourney 1361 (12 3), Internet Chess Club
Analysis of IAlwaysWin (1619) vs. john2001plus (1635)

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

(white to move) 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Qc2 Nc6 11. Rd1 Nb4 12. Qb1 Rc8 13. a3 Nc6 14. e4 Bb3 15. Rd3 Na5 16. Nd2 Bd1 17. b4 Nc6 18. Bb2 Ba4 19. d5 Bb5 20. Re3 a5 21. Nf3 exd5 22. exd5 Na7 23. Nd4 Bf6 24. Nf5 Re8 25. Rxe8+ Qxe8 26. Bxf6 gxf6 27. Qd1 Be2 28. Qd2 Qe5 29. Re1 Qxf5 30. Qxe2 axb4 31. axb4 Rd8 32. Qe7 Rd7 33. Qe8+ Kg7 34. g4 Qxg4 35. h3 Qxb4 36. Re3 Qb1+ 37. Kh2 Rd6 38. Rg3+ Qg6 39. Rxg6+ hxg6 40. Qa8 Nb5 41. Qa4 Nc3 42. Qb3 Ne2 43. Qc4

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Click here for 38. Be4.
Click here for 38... Kh6.

What is the strongest line for Black?

ICC tourney 1333 (12 3), Internet Chess Club
KingsBishop (1571) vs. yoshi (1695)

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. Bxe7 Qxe7 7. Nf3 O-O 8. Bd3 h6 9. O-O c5 10. Nb5 a6 11. Nd6 cxd4 12. Re1 Nc6 13. Rc1 Ndxe5 14. Nxc8 Nxf3+ 15. Qxf3 Raxc8 16. c4 dxc3 e.p. 17. Rxc3 Qf6 18. Qxf6 gxf6 19. Bc2 f5 20. g4 Nd4 21. Bd1 f4 22. Rh3 Rc1 23. Kf1 Kg7 24. Rd3 Nc6 25. h4 Rc8 26. g5 hxg5 27. hxg5 Nb4 28. Rb3 Rc8c4 29. a3 Nc2 30. Bxc2 Rc1xc2 31. Rxb7 f3 32. Rb3 Rf4 33. Rb1 d4 34. Rd3 e5 35. Rb3 Rh4 36. Rxf3 Rh1+ 37. Kg2 Rxb1

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Click here for 31. Re2.
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Click here for 36. Kg1.

Black to play and win.

ICC tourney 1333 (12 3), Internet Chess Club
Analysis of chessrani (1358) vs. yoshi (1691)

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

(black to move) 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 f6 7. exf6 Nxf6 8. b4 c4 9. Bg5 Ne4 10. Bf4 Be7 11. Qc2 O-O 12. Be3 Bd7 13. Bxc4 Nf6 14. Bd3 Qc7 15. O-O e5 16. dxe5 Nxe5 17. Nxe5 Qxe5 18. Bd4 Qh5 19. Nd2 Bd6 20. Nf3 Bg4 21. Bxf6 Bxf3 22. Bxh7+ Kh8 23. h3 gxf6 24. Qf5 Rg8 25. g3 Rg5 26. Qxf6+ Kxh7 27. Rfe1 Rf8 28. Re7+ Bxe7 29. Qxe7+ Rf7 30. Qe6 Re5 31. g4 Rxe6 32. gxh5 Rg7+ 33. Kf1 Rg2 34. Re1 Rh2

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Click here for 31. Qc8.

White to play and win.

ICC tourney 1321 (12 3), Internet Chess Club
Analysis of yoshi (1739) vs. IAlwaysWin (1522)

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 a6 5. Nc3 Bf5 6. cxd5 cxd5 7. Ne5 e6 8. g4 Bg6 9. Qb3 Ra7 10. h4 h5 11. g5 Ng8 12. Qa4+ Nc6 13. Nxc6 bxc6 14. Qxc6+ Qd7 15. Qxd7+ Kxd7 16. Bh3 Ne7 17. Bd2 Bf5 18. Rc1 Bxh3 19. Rxh3 Nc6 20. e4 dxe4 21. Nxe4 Bd6 22. Nxd6 Kxd6 23. Bf4+ Kd7 24. Rhc3 Rc8 25. b4 Ne7 26. Rxc8 Nxc8 27. Rc5 Ne7 28. Ke2 Nd5 29. Bd2 Rb7 30. a3 Rb5 31. a4 Rb6 32. b5 axb5 33. axb5 Rb7 34. Kd3 Ne7 35. Bf4 Nf5 36. Bg3 Ne7 37. Kc4 Nd5 38. Rc6 Ne7 39. Rd6+ Kc8 40. Ra6 Rd7 41. g6 Nxg6 42. b6 Ne7 43. Ra8+ Kb7 44. Ra7+ Kc6 45. Rxd7 Kxd7 46. b7 Nc6 47. Kc5 f6 48. b8=Q Nxb8 49. Bxb8 Kc8 50. Kd6 e5 51. d5 Kxb8 52. Ke7

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Click here for 38... g6.

White to play and draw.

Indiana State Chess Championship, Indianapolis Indiana
Analysis of Qain, Bill (1744) vs. Coffey, John (2001)

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. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. Bc2 Nb4 9. Nc3 Nxc2+ 10. Qxc2 Rc8 11. Bd2 Qa6 12. Qb3 Ne7 13. Rc1 Nf5 14. Ne2 Rxc1+ 15. Nxc1 Be7 16. Bb4 O-O 17. Bxe7 Nxe7 18. Nd3 b6 19. Kd2 Bb5 20. a3 Bc4 21. Qc3 Rc8 22. Nb4 Qa4 23. Rc1 Kf8 24. Qc2 Bb3 25. Qxh7 Rxc1 26. Kxc1 a5 27. Qh8+ Ng8 28. Nd3 Qc4+ 29. Kd2 Bc2 30. Nfe1 Bxd3 31. Nxd3 Qxd4 32. Qh3 Ne7 33. Qe3 Nf5 34. Qxd4 Nxd4 35. Kc3 Nc6 36. f4 Ke7 37. b4 axb4+ 38. Nxb4 Nxb4 39. Kxb4 f6 40. g4 fxe5 41. fxe5 g5 42. Kb5 Kd7 43. Kb4 Kc6 44. a4 d4 45. Kc4 d3 46. Kxd3 Kd5 47. Kc3 Kxe5 48. Kc4 Kf4 49. Kb5 e5 50. Kxb6 e4 51. a5 e3 52. a6 e2 53. a7 e1=Q 54. a8=Q Qb4+ 55. Kc7 Qe7+ 56. Kb6 Qe3+ 57. Kc7 Qe5+ 58. Kd7 Kxg4 59. Qc6 Qxh2 60. Qe6+ Kf3 61. Qb3+ Kg4 62. Qe6+ Kg3 63. Qd6+ Kg2 64. Qd2+

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White to play and win.

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Analysis of john2001plus (1847) vs. P135799 (1624)

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

(white to move) 1. Nf3 Nf6 2. d4 e6 3. c4 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 O-O 7. Nc3 Nc6 8. Bd3 Nb4 9. Bb1 c5 10. O-O b6 11. a3 Nc6 12. d5 exd5 13. Nxd5 Nxd5 14. Qxd5 Bb7 15. Rd1 Rad8 16. Bxh7+ Kh8 17. Qh5 g6 18. Bxg6+ Kg7 19. Nh4 f5 20. Qh7+ Kf6 21. Qh6 Rh8 22. Rd6+ Qxd6 23. Bh7+ Ke5 24. f4+ Ke4 25. Bxf5+ Kxe3 26. Re1+ Kd4 27. Qxd6+ Kxc4 28. Qd3#

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Black to play

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Analyiss of bosperty (1500) vs. john2001plus (1902)

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

(black to move) 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nc3 e5 7. Bd3 d5 8. exd5 cxd5 9. f3 Qb6 10. Rb1 Bb4 11. Bd2 O-O 12. Qe2 Re8 13. Qf2 e4 14. fxe4 dxe4 15. Qxb6 axb6 16. Be2 e3 17. Bc1 Ne4 18. O-O Bxc3 19. bxc3 Nxc3 20. Bf3 Nxb1 21. Bxa8 Ba6 22. Bc6 Rc8 23. Bd7 Rd8 24. Re1 Rxd7 25. Bxe3 Nc3

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White to Play

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Analysis of john2001plus (1896) vs. bosperty (1378)

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 d6 3. c4 c5 4. dxc5 Qa5+ 5. Nc3 Qxc5 6. e4 Be6 7. Be3 Qc6 8. Nd4 Qd7 9. Nxe6 Qxe6 10. Nb5 Na6 11. Rc1 Nd7 12. Be2 h5 13. Qa4 g6 14. c5 dxc5 15. Rxc5 Bh6 16. Bxh6 Rxh6 17. Nc7+ Nxc7 18. Rxc7 Kd8 19. Rxb7 g5 20. O-O Qc6 21. Qa5+ Ke8 22. Rc7 Qb6 23. Qxg5 Rg6 24. Qxh5 Qxc7 25. Qh8+ Nf8 26. Bb5+ Rc6 27. Qc3 Rc8 28. Rc1 Kd7 29. Qh3+ e6 30. Rxc6

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White to play and win.

Hastings, Hastings
Steinitz, William vs. Von Bardeleben, Curt

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

(white to move) 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 d5 8. exd5 Nxd5 9. O-O Be6 10. Bg5 Be7 11. Bxd5 Bxd5 12. Nxd5 Qxd5 13. Bxe7 Nxe7 14. Re1 f6 15. Qe2 Qd7 16. Rac1 c6 17. d5 cxd5 18. Nd4 Kf7 19. Ne6 Rhc8 20. Qg4 g6 21. Ng5+ Ke8 22. Rxe7+ Kf8 23. Rf7+ Kg8 24. Rg7+ Kh8 25. Rxh7+ Kg8 26. Rg7+ Kh8 27. Qh4+ Kxg7 28. Qh7+ Kf8 29. Qh8+ Ke7 30. Qg7+ Ke8 31. Qg8+ Ke7 32. Qf7+ Kd8 33. Qf8+ Qe8 34. Nf7+ Kd7 35. Qd6#

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Click here for 29. Be2.

White to play and win.

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Analysis of BDRichardson (1179) vs. ami22-2000 (1147)

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

(white to move) 1. e4 a6 2. d4 c5 3. d5 b6 4. Nf3 d6 5. Nc3 e5 6. a3 Nf6 7. Be3 h6 8. g3 Bg4 9. Bg2 Nbd7 10. Nb1 Nxe4 11. Nbd2 Nef6 12. c4 b5 13. b3 Qa5 14. O-O Qc3 15. Qc1 b4 16. axb4 cxb4 17. Qb1 a5 18. Ne4 Nxe4 19. Qxe4 Bxf3 20. Bxf3 Qxb3 21. Rab1 Qc3 22. Rfc1 Qa3 23. Ra1 Qb3 24. Bd1 Qb2 25. Rab1 Qa3 26. f4 Be7 27. fxe5 Nxe5 28. Bf4 f6 29. Bxe5 dxe5 30. Qg6+ Kf8 31. Bh5 Bc5+ 32. Kh1 Ke7 33. Qxg7+ Kd6 34. Qxf6+ Kc7 35. Qc6+ Kb8 36. Qb5+ Kc7 37. Qxc5+ Kb7 38. Qc6+ Ka7 39. Qc7+ Ka6 40. c5 Rab8 41. Be2+ Rb5 42. Qb6#

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White to play and win.

ICC 5 2, Internet Chess Club
Analysis of yoshi (1763) vs. chessicist (1521)

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

(white to move) 1. Nf3 d6 2. d4 g6 3. c4 Bg7 4. Nc3 f5 5. e4 fxe4 6. Nxe4 Nf6 7. Nxf6+ exf6 8. Bd3 O-O 9. O-O Bg4 10. h3 Be6 11. d5 Bf7 12. Re1 Nd7 13. Nd4 Nc5 14. Bc2 a5 15. Bd2 Re8 16. Rxe8+ Qxe8 17. Nb5 Qd7 18. Bc3 Re8 19. Qf3 f5 20. Bxg7 Kxg7 21. Qc3+ Kg8 22. Re1 c6 23. Rxe8+ Bxe8 24. Nd4 cxd5 25. cxd5 Bf7 26. Qxa5 Bxd5 27. b4 b6 28. Qxb6 Ne4 29. Nb5 Qe6 30. Nc7 Qc8 31. a4 Qb7 32. Qxb7 Bxb7 33. a5 Nc3 34. b5 Ne2+ 35. Kf1 Nd4 36. a6 Bxa6 37. bxa6 Nc6 38. Ba4 Na7 39. Nb5 Nc8 40. Nxd6 Nb6 41. Nc4 Nc8 42. Bd7 Na7 43. Nd6

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White to play and win.

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Analysis of c0livar (1505) vs. john2001plus (1552)

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

(white to move) 1. e4 e6 2. Nf3 d5 3. Nc3 Nf6 4. Bd3 c5 5. Bb5+ Bd7 6. exd5 exd5 7. Qe2+ Be7 8. Ne5 O-O 9. Nxd7 Nbxd7 10. O-O a6 11. Bxd7 Qxd7 12. d3 Rfe8 13. Qf3 Bd6 14. Bg5 d4 15. Bxf6 gxf6 16. Ne4 Be7 17. Nxf6+ Bxf6 18. Qxf6 Re6 19. Qf3 Rae8 20. b3 Re2 21. Rac1 Qe7 22. a4 b6 23. g3 Rd2 24. Rfe1 Qxe1+ 25. Rxe1 Rxe1+ 26. Kg2 Ree2 27. Qf6 Rxf2+ 28. Qxf2 Rxf2+ 29. Kxf2 Kg7 30. Kf3 Kf6 31. Ke4 Ke6 32. g4 f6 33. h4 h6 34. Kf4 Ke7 35. Kf5 Kf7 36. Ke4 Ke6 37. b4 cxb4 38. Kxd4 f5 39. gxf5+ Kxf5 40. Kd5 Kf4 41. d4 Ke3 42. h5 a5 43. Kc4 Ke4 44. Kb5 Kd5 45. Kxb6 Kxd4 46. Kxa5 Kc5 47. Ka6 Kc6 48. a5

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Black to play and win.

ICC tourney 1279 (12 3), Internet Chess Club
Analysis of ickyquarter (1216) vs. yoshi (1718)

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. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. Bc2 Nb4 9. Nc3 Nxc2+ 10. Qxc2 Rc8 11. O-O Ne7 12. Bd2 Nf5 13. Be3 Be7 14. Rac1 O-O 15. Qd2 Rc7 16. Rc2 Rfc8 17. Rfc1 Bb4 18. a3 Be7 19. Qe2 Qb3 20. Nd2 Qb6 21. Nf1 Qa5 22. Qd2 a6 23. Qe1 h6 24. Ng3 Nxe3 25. Qxe3 Ba4 26. Rd2 Bxa3 27. bxa3 Rxc3 28. Rxc3 Qxc3 29. Qxc3 Rxc3 30. h3 Rxa3 31. Rb2 Rb3 32. Ra2 b5 33. Ne2 Rb1+ 34. Kh2 Re1 35. Nc3 Bb3 36. Rxa6 Bc4 37. Ra8+ Kh7 38. Rb8 Rc1 39. Nxb5 Rb1 40. Rb7 Rxb5 41. Rxf7 Rb2 42. Kg3 Bd3 43. Re7 Bf5 44. Kf3 Kg8 45. g4 Kf8 46. Ra7 Be4+ 47. Kg3 Rb3+ 48. Kh2 Rf3 49. Ra2 Kf7 50. h4 Kg6 51. Ra6 Rxf2+ 52. Kg3 Rf3+ 53. Kh2 h5 54. Rxe6+ Kf7 55. Rc6 hxg4 56. Kg1 Rh3 57. Kf2 g3+ 58. Ke2 g2 59. Rc1 Rh1

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Click here for 41. Rxb5

White to play and win.

ICC 30 0, Internet Chess Club
Analysis of yoshi (2077) vs. fiddler (1706)

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

(white to move) 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 Be7 6. Nc3 O-O 7. O-O c5 8. e4 cxd4 9. Nxd4 Qc7 10. Qe2 a6 11. e5 Nfd7 12. Bxe6 Qxe5 13. Qxe5 Nxe5 14. Bxc8 Rxc8 15. Re1 Bc5 16. Nb3 Nd3 17. Re2 Bxf2+ 18. Rxf2 Nxf2 19. Kxf2 Nc6 20. Bf4 Nb4 21. Rd1 Rd8 22. Bd6 Nc6 23. Na4 b5 24. Nac5 Ne5 25. Nb7 Re8 26. Bxe5 Rxe5 27. Nd4 f6 28. Nc6 Re4 29. Rd7 Rc4 30. Ne7+ Kf8 31. Nd6 Rc2+ 32. Kf3 Rxb2 33. Nef5 Rxa2 34. Rf7+ Kg8 35. Rxg7+ Kf8 36. Rxh7 Kg8 37. Rg7+ Kf8 38. Rf7+ Kg8 39. Ne7+ Kh8 40. Ne4 Ra3+ 41. Kf4 Ra4 42. Kf5 Rxe4 43. Ng6+ Kg8 44. Kxf6 Rf4+ 45. Nxf4 Rf8 46. Rxf8+ Kxf8 47. g4 b4 48. g5 b3 49. g6 b2 50. g7+ Kg8 51. Nd5 Kh7 52. Ne7 b1=Q 53. g8=Q+

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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 b6 23. h4 Bh6 24. g4 Bf4 25. Rhf1 g5 26. hxg5 Bxg5 27. Rf5 h6 28. Kb1 Rd3 29. Kc1 bxc5 30. bxc5 Rd4 31. b3 Rcd8 32. Rf2 a5 33. Kc2 a4 34. bxa4 Rxa4 35. c6 Rad4 36. Kc3 Rd4d6 37. c7 Rc6+ 38. Kb2 Rxc7 39. Ka2 Rc2+

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Black to play and win.

?, ?
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 Bxa2 23. Rxb7 Bd5 24. Bxd5 cxd5 25. Rd7 a5 26. Rxd5 a4 27. Rd2 a3 28. Ra2 Kxg7 29. Kf1 Kf6 30. Ke2 Ke5 31. Kd3 Kd5 32. f3 Kc5 33. Kc3 f5 34. g4 fxg4 35. fxg4 Kd5 36. Kd3 Ke5 37. Ke3 Ra4 38. h3 Re4+ 39. Kf3 Rf4+ 40. Kg3 Ra4 41. Kh4 Kf4 42. Kh5 Kg3 43. Kg5 Ra5+ 44. Kh6 Kxh3 45. g5 Kh4 46. Rh2+ Kg4 47. Rg2+ Kf4 48. Rf2+ Ke4 49. Re2+ Kd3 50. Ra2 Ra7 51. Ra1 a2 52. Rc1 a1=Q 53. Rxa1 Rxa1 54. Kxh7 Ke4 55. g6 Kf5 56. g7 Rh1+ 57. Kg8 Kg6 58. Kf8 Rf1+ 59. Kg8 Rf2 60. Kh8 Rh2+ 61. Kg8 Rh7 62. Kf8 Rxg7

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Black to play.

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Analysis of kyaw333 (1603) vs. john2001plus (1799)

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

(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. Nxe4 h5 22. Qxg7+ Kxg7 23. Bxe3 Nxe3+ 24. Kg1 d5 25. Nd6 e5 26. Nxc8 Raxc8 27. Re1 d4 28. b3 Rc6 29. a4 Kg6 30. a5 Rf3 31. Rxe3 Rxe3 32. Kg2 Rxb3

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Pawn promotion:
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Click here for 22. Qd1.

Black to play and win.

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Analysis of chessnerdbird (1392) vs. john2001plus (1845)

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

(black to move) 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 f6 7. b4 fxe5 8. dxc5 Qc7 9. Bb5 Bd7 10. O-O e4 11. Nd4 Nf6 12. Bxc6 bxc6 13. Bg5 Qe5 14. Bxf6 gxf6 15. Re1 O-O-O 16. Nd2 Qg5 17. Qa4 Kb7 18. b5 cxb5 19. Rab1 Bxc5 20. Nxe6 Bxf2+ 21. Kxf2 Qf5+ 22. Nf3 Qxe6 23. Nd4 Qb6 24. Qb3 Qc5 25. a4 Rb8 26. axb5 Ka8

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Options:
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Pawn promotion:
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Black to play for equality.

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Analysis of pawnhopper316 (1987) vs. john2001plus (1840)

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

(black to move) 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nf6 5. Nf3 Bd6 6. O-O O-O 7. c3 Bg4 8. Bg5 h6 9. Bh4 g5 10. Bg3 Re8 11. Nbd2 Ne4 12. Qc2 Nxg3 13. hxg3 Nc6 14. b4 Qf6 15. a4 Re6 16. a5 Rae8 17. b5 Ne7 18. b6 cxb6 19. axb6 a6 20. Qa4 Nc6 21. Bxa6 Ra8 22. Qb5 Rxa6 23. Rxa6 bxa6 24. Qxc6 Bf8 25. Qxd5 Rxb6 26. Ne5 Be6 27. Qa5 Rb2 28. Ne4 Qf5 29. Nc5 Ra2 30. Qd8 Kg7 31. Nxe6+ Qxe6 32. g4 f6 33. Nd7 Be7 34. Qe8 Re2 35. Nb8 Qxg4 36. Nxa6 h5 37. Nc7 h4 38. Qc6 h3 39. g3 Re4 40. Ne8+ Kg6 41. Qc4 Qf3 42. Qg8+ Kf5 43. Qh7+ Kg4 44. Nxf6+ Bxf6 45. Qd7+ Kh5 46. Qh7+ Kg4 47. Qd7+ Kh5

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Options:
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	- use short algebraic notation;
movement/animation speed: (slow) (fast)
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Pawn promotion:
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	- Rook
	- Bishop
	- Knight

Black to play and win.

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Analysi of capa1234 (1781) vs. john2001plus (1788)

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. exd5 exd5 4. Nf3 Nf6 5. Bd3 Bd6 6. O-O O-O 7. Bg5 h6 8. Bh4 Be6 9. Nbd2 Nbd7 10. Re1 c5 11. c3 Qb6 12. dxc5 Nxc5 13. Nb3 Nxd3 14. Qxd3 Ne4 15. Nfd4 Rae8 16. Nxe6 fxe6 17. Rxe4 dxe4 18. Qe2 Qc7 19. Bg3 Bxg3 20. hxg3 Qb6 21. Re1 a5 22. Qe3 Qb5 23. Re2 e5 24. Nc5 Qb6 25. Nxe4 Qxe3 26. Rxe3 b6 27. c4 Rd8 28. Re2 Rd1+ 29. Kh2 Rc8 30. b3 Rcd8 31. Nc3 Rd1d2 32. Rxe5 Rxf2 33. Nd5 Rxa2 34. Nxb6 Rdd2 35. Nd5 Rxg2+ 36. Kh3 Rgb2 37. c5 Re2 38. Rf5 Rac2 39. Kg4 Kh7 40. Nf4 Re4 41. c6 g5 42. Kf3 Rb4 43. Nd3 Rxb3 44. Ke4 Rxc6 45. Rxa5 Rc4+ 46. Kd5 Rxd3+ 47. Kxc4 Rxg3 48. Kd5 Re3

[ Flip the board | Reset | Options… ] Play online chess

 

Options:
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	- use short algebraic notation;
movement/animation speed: (slow) (fast)
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Pawn promotion:
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	- Rook
	- Bishop
	- Knight

White to play and win.

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Analysis of LucVanDuc (1824) vs. john2001plus (1701)

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

(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. Nh4 Rf7 26. Ng6 Rg8 27. h4 Kh7 28. Nxe7 Rxe7 29. Bxg5 Rgg7 30. Qxh6+ Kg8 31. Bxe7 Rxe7 32. Qg5+ Rg7 33. Qe3

[ 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 25... gxh4.