Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. d4 cxd4 6. Qxd4 Ngf6 7. O-O e5
8. Qc4 Be7 9. Nc3 O-O 10. h3 Rc8 11. Qb4 b6 12. Qa4 Nc5 13. Qb4 a5 14. Qb5
Ncxe4 15. Nxe4 Nxe4 16. c3 Rc5 17. Qe2 Nf6 18. Be3 Rc6 19. Rad1 Qc7 20. Qc2 h6
21. Nh2 d5 22. Qf5 Bc5 23. Ng4 Nxg4 24. Qxg4 Bxe3 25. fxe3 Rd6 26. Rf3 Rfd8 27.
Rg3 Rg6 28. Qh4 Rxg3 29. Qxg3 f6 30. Qf3 Qc4 31. a3 Kf8 32. Qf2 b5 33. Qf5 b4
34. Qh7 Kf7 35. cxb4 axb4 36. axb4 Qxb4 37. Qc2 Rd7 38. Qc6 Qd6 39. Qc3 Qb6 40.
Kh1 d4 41. exd4 Rxd4 42. Rc1 Rb4 43. Rc2 Rb3 44. Qc4+ Kg6 45. Qe4+ Kf7 46. Qd5+
Ke7 47. Rd2 Qb7 48. Qc5+ Kf7 49. Qc4+ Kg6 50. Qg4+ Kh7 51. Qf5+ Kh8 *
Position (FEN): 7k/1q4p1/5p1p/4pQ2/8/1r5P/1P1R2P1/7K w - - 20 52
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 937
Best move: Rd8#