Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. c3 dxc3 7. Bxf7+ Kxf7
8. e5 Ng8 9. Qd5+ Kf8 10. Qxc5+ Qe7 11. Qxc3 Nh6 12. b3 Nf5 13. Ba3 d6 14. exd6
Nxd6 15. Re1 Be6 16. Nfd2 Rd8 17. Qf3+ Qf7 18. Rxe6 Qxf3 19. Nxf3 Kf7 20. Re2
Nb5 21. Bc5 Rd1+ 22. Re1 Rxe1+ 23. Nxe1 Re8 24. Nd2 Nc3 25. Nef3 b6 26. Be3 Nd5
27. Nc4 Nxe3 28. Nxe3 Rd8 29. Rd1 Rxd1+ 30. Nxd1 Nb4 31. Nc3 a5 32. a3 Nc6 33.
Nd5 b5 34. Nxc7 b4 35. a4 Ke7 36. Nb5 Ke6 37. Nfd4+ Nxd4 38. Nxd4+ Kd5 39. Nb5
Ke4 40. Kf1 Kd3 41. Ke1 Kc2 42. Nd4+ Kc3 43. Ne6 Kxb3 44. Nxg7 *
Position (FEN): 8/6Np/8/p7/Pp6/1k6/5PPP/4K3 b - - 0 44
Black to move.
Themes: Defensive Move Endgame, Knight Endgame  
Puzzle rating: 1933
Best move: Ka2