Chess puzzle (Equality)
Moves: 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. d3 Bxe4 6. dxe4 Qxd1+ 7. Kxd1 g6
8. Be3 Bg7 9. Bd4 Bxd4 10. Nxd4 Nf6 11. f3 c5 12. Nb5 Kd7 13. Bc4 e6 14. Ke2
Nc6 15. c3 Ke7 16. Rhd1 Rhd8 17. a4 Nh5 18. g3 f5 19. Nc7 Rxd1 20. Rxd1 Rd8 21.
Nxe6 Rxd1 22. Kxd1 Na5 23. Ba2 Nf6 24. exf5 gxf5 25. Ke2 c4 26. Nd4 f4 27. gxf4
Nd5 28. f5 Nf4+ 29. Ke3 Nd3 30. b3 cxb3 31. Nxb3 Nxb3 32. Bxb3 Nc5 33. Bc2 Kf6
34. Kf4 Nd7 35. Be4 b6 36. Ke3 Ne5 37. Kd4 Nd7 38. h4 Nc5 39. a5 Nb3+ 40. Kd5 *
Position (FEN): 8/p6p/1p3k2/P2K1P2/4B2P/1nP2P2/8/8 b - - 2 40
Black to move.
Themes:  Endgame  
Puzzle rating: 1509
Best move: Nxa5