Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nc3 d5 3. Bf4 e6 4. Nb5 Na6 5. e3 c6 6. Nc3 Bd6 7. Bg3 Nc7 8. Bd3
O-O 9. Nf3 a6 10. Ne5 Nb5 11. Ne2 Nd7 12. Nf4 Nxe5 13. dxe5 Be7 14. Qh5 g6 15.
Nxg6 fxg6 16. Bxg6 Bb4+ 17. c3 Qe7 18. Bxh7+ Qxh7 19. Qg4+ Qg7 20. Qxb4 a5 21.
Qc5 a4 22. h4 Bd7 23. h5 Kh7 24. h6 Qg6 25. Rh4 Rf7 26. Rf4 Rxf4 27. Bxf4 Re8
28. g3 Qe4 29. O-O-O Qg6 30. c4 Nc7 31. Qd6 Qf7 32. Qxc7 Rc8 33. Qd6 Be8 34.
Rh1 Rc7 35. Rh4 Rd7 36. Qc5 Qf5 37. g4 Qe4 38. Qd4 Qg2 39. Rh2 Qf1+ 40. Qd1
Qxc4+ 41. Qc2+ Qxc2+ 42. Kxc2 Bg6+ 43. Kc3 c5 44. f3 b5 45. Rd2 *
Position (FEN): 8/3r3k/4p1bP/1pppP3/p4BP1/2K1PP2/PP1R4/8 b - - 1 45
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1008
Best move: b4#