Black to play and win.

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Analysis of calculationmaestro (1988) vs. john2001plus (1778)

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

(black to move) 1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 Nf6 5. e5 Nfd7 6. Ngf3 Nc6 7. Bd3 cxd4 8. cxd4 Qb6 9. O-O Nxd4 10. Nxd4 Qxd4 11. Nf3 Qb6 12. Qa4 Be7 13. a3 O-O 14. Bg5 Bxg5 15. Bxh7+ Kxh7 16. Nxg5+ Kg8 17. Qh4 Re8 18. Rae1 Nf8 19. Re3 Ng6 20. Qh7+ Kf8 21. h4 Qc7 22. h5 Nxe5 23. h6 gxh6 24. Qxh6+ Ke7 25. Qg7 Ng4 26. Qxf7+ Kd8 27. Qxc7+ Kxc7 CHECK!

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Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight