Chess puzzle (Equality)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 c5
8. Ne2 Nf6 9. f3 Be6 10. O-O O-O-O 11. Be3 Bd6 12. Nbc3 b5 13. a3 Kb7 14. Rad1
c6 15. Bf4 Bc7 16. Bxc7 Kxc7 17. Rxd8 Rxd8 18. Rd1 Rxd1+ 19. Nxd1 b4 20. Ne3 a5
21. Nf4 Ba2 22. b3 Bb1 23. a4 Nd7 24. Kf2 Ne5 25. Ke2 Kb6 26. Kd2 c4 27. Kc1
Ba2 28. Kb2 Bxb3 29. cxb3 g5 30. Ne2 Nd3+ 31. Kc2 Ne1+ 32. Kd2 cxb3 33. Kc1
Nd3+ 34. Kb1 Kc5 35. Nc1 Nxc1 36. Kxc1 Kd4 37. Nf5+ Kc3 38. g3 c5 39. f4 gxf4
40. gxf4 b2+ 41. Kb1 Kb3 42. Nd6 *
Position (FEN): 8/5p1p/3N4/p1p5/Pp2PP2/1k6/1p5P/1K6 b - - 3 42
Black to move.
Themes: Defensive Move Endgame, Knight Endgame  
Puzzle rating: 1849
Best move: c4