Chess puzzle (Equality)
Moves: 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Bb4+ 6. Nc3 Qf6 7. Qb3 Nc6
8. Nf3 Nh6 9. e5 Qf5 10. O-O-O O-O 11. Nd5 Ba5 12. Bb5 a6 13. Bxc6 dxc6 14.
Ne7+ Kh8 15. Nxf5 Nxf5 16. Rhe1 Be6 17. Qa3 Bxe1 18. Rxe1 Rfd8 19. Qb4 b5 20.
Qc5 Bxa2 21. Qxc6 Bd5 22. Qxc7 Rac8 23. Qxc8 Rxc8+ 24. Kd2 Rd8 25. Kc3 Rc8+ 26.
Kb4 Rc4+ 27. Ka5 Ra4+ 28. Kb6 Ne7 29. Ra1 Rxa1 30. Bxa1 Bc4 31. Kxa6 b4+ 32.
Ka5 b3 33. Bb2 Nc6+ 34. Ka4 Bd5 35. Kb5 Ne7 36. Kc5 h6 37. Nd4 g5 38. f3 Kg7
39. Kb4 Nc6+ 40. Nxc6 Bxc6 41. Kxb3 Bb5 42. e6+ Kg6 43. e7 f5 44. Kb4 Bd7 45.
Ka5 Kf7 46. Ba3 Ke6 47. Kb6 Kd5 48. Kc7 Ba4 49. Kd8 Kd4 50. e8=Q Bxe8 51. Kxe8
Ke3 52. Bf8 Kf2 53. g4 *
Position (FEN): 4KB2/8/7p/5pp1/6P1/5P2/5k1P/8 b - - 0 53
Black to move.
Themes: Defensive Move Bishop Endgame, Endgame  
Puzzle rating: 2514
Best move: f4