Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Be7 6. e3 Nbd7 7. c5 O-O 8. Bd3
Re8 9. Qc2 Nf8 10. Bh4 h6 11. O-O a5 12. Qb3 N6d7 13. Bg3 Bf6 14. Na4 e5 15.
Bf5 e4 16. Nd2 Be7 17. a3 g6 18. Bh3 f5 19. Kh1 Ne6 20. f3 Rf8 21. fxe4 dxe4
22. Qxe6+ Kh7 23. Bd6 Nxc5 24. Qxe7+ Qxe7 25. Bxe7 Re8 26. Bxc5 b5 27. Nb6 Rb8
28. Nxc8 Rbxc8 29. Nb3 a4 30. Nd2 Re6 31. Rf4 Rd8 32. Nxe4 fxe4 33. Bxe6 Re8
34. Rf7+ Kg8 35. Rf8+ Kg7 36. Rxe8 Kf6 37. Rf8+ Kxe6 38. Raf1 Kd5 39. Rc1 Ke6
40. Bb6 Kd5 41. Bd8 Ke6 42. Rxc6+ Kd7 43. Rxg6 b4 44. Rg7+ Kc6 45. Rf6+ Kb5 46.
Rb7+ Kc4 47. Rc6+ Kd3 48. Rxb4 Kxe3 49. Rxa4 Kf4 50. b4 e3 51. b5 e2 52. b6 *
Position (FEN): 3B4/8/1PR4p/8/R2P1k2/P7/4p1PP/7K b - - 0 52
Black to move.
Themes: Advanced Pawn Endgame Back Rank Mate, Mate in 1 Promotion
Puzzle rating: 668
Best move: e1=Q#