Chess puzzle (Checkmate)
Moves: 1. d4 f5 2. f3 e6 3. Bf4 Nf6 4. Nc3 Nh5 5. Bg3 Be7 6. e3 Bh4 7. Nge2 Bxg3+ 8.
hxg3 Nf6 9. Nf4 b6 10. Bb5 Qe7 11. Qd3 Bb7 12. O-O-O Nc6 13. Nh5 O-O-O 14. Nxf6
Qxf6 15. e4 Nb4 16. Qc4 a5 17. a3 Nc6 18. Ba6 Kb8 19. e5 Qg5+ 20. Kb1 d5 21.
Qb5 Qxg3 22. Bxb7 Kxb7 23. Qe2 Rde8 24. Nb5 g5 25. Rc1 Qf4 26. Qd3 g4 27. c4
gxf3 28. cxd5 exd5 29. Qc2 Qe4 30. gxf3 Qxc2+ 31. Rxc2 h5 32. Rhc1 Re6 33. f4
h4 34. Rg2 h3 35. Rg7 h2 36. Rxc7+ Ka6 37. R7xc6 Rxc6 38. Rxc6 h1=Q+ 39. Ka2
Kxb5 40. Rd6 Qe4 41. a4+ Kxa4 42. Rxb6 Qxd4 *
Position (FEN): 7r/8/1R6/p2pPp2/k2q1P2/8/KP6/8 w - - 0 43
White to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 1049
Best move: b3#