Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 Na6 7. Nf3 c6 8. Be2 e5
9. O-O Qe7 10. Qb1 Re8 11. d5 c5 12. a3 b6 13. b4 Nh5 14. Bd1 f5 15. Ba4 Rf8
16. Bc6 Rb8 17. b5 Nc7 18. Bg5 Bf6 19. Bxf6 Qxf6 20. a4 f4 21. a5 g5 22. axb6
axb6 23. Ra7 Rf7 24. Nh2 Qg6 25. Ng4 Nf6 26. f3 h5 27. Nxf6+ Qxf6 28. Kf2 g4
29. hxg4 Qh4+ 30. Ke2 hxg4 31. Qe1 Qh2 32. Qf2 gxf3+ 33. gxf3 Rh7 34. Rg1+ Kf8
35. Qxh2 Rxh2+ 36. Kd3 Ne8 37. Bxe8 Kxe8 *
Position (FEN): 1rb1k3/R7/1p1p4/1PpPp3/2P1Pp2/2NK1P2/7r/6R1 w - - 0 38
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 663
Best move: Rg8#