White to play for a winning advantage.

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Analysis of Gustafsson21 (1807) vs. john2001plus (1793)

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

(white to move) 1. d4 Nf6 2. Bg5 c5 3. Bxf6 gxf6 4. d5 Qb6 5. Qc1 d6 6. c4 Qb4+ 7. Nc3 Qxc4 8. Nf3 Qb4 9. a3 Qa5 10. e4 Bg4 11. Be2 Nd7 12. O-O h5 13. b4 Qd8 14. Nh4 Bh6 15. f4 cxb4 16. axb4 Rc8 17. Qb2 Rxc3 18. Bxg4 Qb6+ 19. Kh1 Rc4 20. Bxd7+ Kxd7 21. Qe2 Qd4 22. Qxh5 Kc7 23. Nf5 Bg7 24. Qxf7 Qxe4 25. Qxg7

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Pawn promotion:
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What is the best line for Black?

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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 +1

(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 Rc8 27. Kf1 Rfd8 28. Ke2 b5 29. Nd2 Rd5 30. Rd3 Rxd3 31. Kxd3 Kf7 32. Ke4 a4 33. Kxe5 a3 34. bxa3 Rxc3

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What is the best line for Black?

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Anlaysis of nickgeannopoulos (1425) vs. john2001plus (1617)

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. Nd2 c5 4. c3 dxe4 5. Nxe4 Nf6 6. Bd3 cxd4 7. Nxf6+ Qxf6 8. Bb5+ Bd7 9. Bxd7+ Nxd7 10. Qxd4 Qxd4 11. cxd4 Bb4+ 12. Bd2 Bxd2+ 13. Kxd2 O-O 14. Rc1 Rac8 15. Nf3 Nb6 16. b3 Nd5 17. Rxc8 Rxc8 18. Rc1 Rxc1 19. Kxc1 Nb4 20. Kb1 Nd3 21. Ne5 Nxf2 22. Nd7 Ng4 23. h3 Ne3 24. g4 Nd5 25. Nc5 b6 26. Ne4 Nf4 27. Nf2 Kf8 28. Kc2 Ke7 29. Kc3 Kd6 30. Kc4 a6 31. a3 f5 32. g5 b5+ 33. Kb4 Kd5 34. Ka5 Kxd4 35. Kxa6 Nd5 36. Kxb5 e5 37. a4 e4 38. a5 e3 39. Nh1 e2

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Pawn promotion:
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	- Knight

White to play and win.

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Analysis of john2001plus (1778) vs. franciscocastillogal (1582)

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

(white to move) 1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. a3 Bb7 5. Nc3 d5 6. Bg5 Be7 7. e3 Nbd7 8. Bd3 O-O 9. O-O Rc8 10. cxd5 Nxd5 11. Bxe7 Nxe7 12. e4 c5 13. d5 exd5 14. exd5 Nf6 15. d6 Ng6 16. Bf5 Rc6 17. Qa4 a6 18. Ne4 Nxe4 19. Bxe4 Qxd6 20. Bxc6 Bxc6 21. Qd1 Qf6 22. b4 Nf4 23. bxc5 Rd8 24. Qb3 Nh3+ 25. Kh1 Nxf2+ 26. Kg1 Ng4 27. Ne5 Nxe5 28. Rxf6 gxf6 29. Rd1 Re8 30. cxb6 Kg7 31. b7 Rb8 32. Qg3+ Kf8 33. Qf4 Rxb7 34. Qxf6 Re7 35. Qh8#

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Pawn promotion:
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	- Rook
	- Bishop
	- Knight

White to play and win.

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Analysis of john2001plus (1775) vs. Blutsvente (1626)

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

(white to move) 1. Nf3 d5 2. d4 Bf5 3. c4 e6 4. cxd5 exd5 5. Nc3 Nf6 6. Qb3 Bc8 7. Bg5 c6 8. e4 Be7 9. e5 Nfd7 10. Bxe7 Qxe7 11. Bd3 O-O 12. O-O f5 13. exf6 e.p. Qxf6 14. Rae1 Nb6 15. Ne5 Bf5 16. Bxf5 Qxf5 17. a4 Qc8 18. a5 Nb6d7 19. Nxd5 cxd5 20. Qxd5+ Kh8 21. Nf7+

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Pawn promotion:
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	- Rook
	- Bishop
	- Knight

Black to play.

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Analysis of Gustafsson21 (1802) vs. john2001plus (1753)

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

(black to move) 1. d4 Nf6 2. Bf4 c5 3. e3 cxd4 4. exd4 d5 5. c4 Nc6 6. Nc3 e6 7. Nf3 Bb4 8. Bd3 dxc4 9. Bxc4 O-O 10. O-O Nd5 11. Bg5 Be7 12. Qd2 Nb6 13. Bd3 Nxd4 14. Be3 Nxf3+ 15. gxf3 Nd5 16. Nxd5 exd5 17. Rfd1 Be6

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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

White to play and win.

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Analysis of john2001plus vs. Gustafsson21

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. Nc3 dxc4 5. Ne5 Bf5 6. f3 e6 7. e4 Bg6 8. Bxc4 Bb4 9. O-O Nbd7 10. Qb3 Bxc3 11. bxc3 O-O 12. Bg5 Rb8 13. Nxd7 Qxd7 14. Bxf6 gxf6 15. a4 f5 16. d5 e5 17. Rad1 c5 18. d6 a6 19. a5 f4 20. Qb6 Rfd8 21. Rd5 Kg7 22. Rfd1 f6 23. Rxc5 Rbc8 24. Rxc8 Qxc8 25. Be6 Qb8 26. Qc7+ Kh6 27. Rb1 Qa7+ 28. Rb6 Qa8 29. Rxb7

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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

White to play and win.

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Analysis of john2001plus vs. Gustafsson21

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

(white to move) 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 dxc4 5. Ne5 Bf5 6. f3 e6 7. e4 Bg6 8. Bxc4 Bb4 9. O-O Nbd7 10. Qb3 Bxc3 11. bxc3 O-O 12. Bg5 Rb8 13. Nxd7 Qxd7 14. Bxf6 gxf6 15. a4 f5 16. d5 e5 17. Rad1 c5 18. d6 a6 19. a5 f4 20. Qb6 Rfd8 21. Rd5 Kg7 22. Rfd1 f6 23. Rxc5 Rbc8 24. Rc7 Rxc7 25. Qxc7 Bf7 26. Kf2 Bxc4 27. Qxc4 Rc8 28. Qb4 Rc6 29. c4 Rc8 30. c5 Qc6 31. d7 Rd8 32. Rd6 Qc7 33. g3 Rxd7 34. Qb6 Kg8 35. Rxf6 Qxb6 36. axb6 Rd2+ 37. Ke1 Rc2 38. gxf4 Rxc5 39. Rd6 exf4 40. Rd7 Rb5 41. Rxb7 a5 42. Kd2 Rb3 43. e5 a4 44. e6 Kf8 45. Kc2 Rxf3 46. Rf7+ Ke8 47. b7 Rb3 48. Rxh7 Kd8 49. b8=Q+ Rxb8 50. Rh8+ Kc7 51. Rxb8 Kxb8 52. e7

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Click here for 46. Kg8.

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 -1

(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. Bxf4 Rcf8 28. Be3 Rxf2 29. Bxf2 Qxb2 30. Rf1 Qxc3 31. Be3 Rf8 32. Rc1 Qxa3 33. Rc7 Qa1+ 34. Kh2 Qa3 35. hxg5 hxg5 36. Bxg5 Rf7 37. Bh6+ Kg8 38. Qg6+ Kh8 39. Qxf7

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Pawn promotion:
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	- Rook
	- Bishop
	- Knight

Black to play and draw.

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Analysis of shanghainese (1573) vs. FLchessplayer (1970)

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

(black to move) 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 a6 5. Be2 g6 6. c3 Bg7 7. Be3 Ne7 8. O-O O-O 9. Nd2 Nbc6 10. Nd2f3 h6 11. h3 Bd7 12. a3 Kh7 13. Rc1 Qc8 14. Nxc6 Nxc6 15. Nh2 f5 16. exf5 Bxf5 17. Bg4 Ne5 18. Bxf5 Qxf5 19. Bd4 Rae8 20. Bxe5 Bxe5 21. Nf3 Bg7 22. Re1 g5 23. Rxe8 Rxe8 24. Nd4 Qf7 25. Qd3+ Kg8 26. Rc2 Bxd4 27. cxd4 Re1+ 28. Kh2 Qf4+ 29. g3 Qf6 30. Re2 Rxe2 31. Qxe2 Kf7 32. Qe3 Qe6 33. Kg2 Qd5+ 34. f3 Qe6 35. Qxe6+ Kxe6 36. Kf2 Kd5 37. Ke3 c5 38. dxc5 dxc5 39. b3 b5 40. f4 gxf4+ 41. gxf4 Kd6 42. Ke4 Ke6 43. h4 Kd6 44. f5 a5 45. f6 Ke6 46. f7 Kxf7 47. Kd5 b4 48. a4 Kf6 49. Kxc5 Ke5 50. h5 Ke4 51. Kb5 Kd3 52. Kxa5 Kc3 53. Kb6 Kxb3 54. a5 Kc3 55. a6 b3 56. a7 b2 57. a8=Q b1=Q+

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Options:
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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

Black to play and win.

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Analysis of pkengsoo (1507) vs. BotanicalKnight (1634)

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

(black to move) 1. e4 c6 2. d4 d5 3. f3 e6 4. Nc3 Nf6 5. Bd3 Be7 6. Bf4 O-O 7. Qd2 dxe4 8. fxe4 Qb6 9. Nf3 Nbd7 10. O-O-O c5 11. d5 exd5 12. exd5 Bd6 13. Bc4 Qc7 14. Bxd6 Qxd6 15. h4 a6 16. h5 b5 17. Be2 Bb7 18. h6 g6 19. Qd3 Rfe8 20. Ng5 Ne5 21. Qd2 b4 22. Nce4 Nxe4 23. Nxe4 Qb6 24. Rdf1 c4 25. Nf6+ Kf8 26. Nxe8 Kxe8 27. Bxc4 Nxc4 28. Qe2+ Qe3+ 29. Qxe3+ Nxe3 30. Re1 Kd7 31. Rxe3 Bxd5 32. Rd3 Kc6 33. Rhd1 Rd8 34. a3 bxa3 35. bxa3 Rd7 36. Kb2 Be6 37. Rxd7 Bxd7 38. Kc3 Be6 39. Kb4 Bd5 40. Rxd5 Kxd5 41. Ka5 f5 42. Kxa6 g5 43. Kb5 g4 44. a4 f4 45. c4+ Kd4 46. c5 f3 47. c6 f2 48. c7 f1=Q+ 49. Kb6 Qb1+ 50. Ka7 Qc2 51. Kb8 Qb3+ 52. Kc8 Qxa4 53. Kd8 Qa8+ 54. Kd7 Qa7 55. Kd8 Qa8+ 56. Kd7 Qa7 57. Kd8 Qa8+ 58. Kd7 Qa7 59. Kd8 Ke5 60. Kd7 Qb7 61. g3 Qd5+ 62. Ke8 Kf6 63. c8=N Qc6+ 64. Kd8 Ke6 65. Nb6 Qb7 66. Nc8 Qd7#

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Pawn promotion:
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	- Bishop
	- Knight