Chess puzzle (Checkmate)
Moves: 1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. O-O e5 6. Nc3 d6 7. Ne1 Be6 8. d3
Nge7 9. Nc2 d5 10. cxd5 Nxd5 11. a3 a5 12. Bd2 O-O 13. Rb1 Rb8 14. b4 axb4 15.
Nxd5 Bxd5 16. Bxd5 Qxd5 17. axb4 cxb4 18. Nxb4 Nxb4 19. Rxb4 Rfe8 20. f3 Bh6
21. Be1 Be3+ 22. Kg2 b5 23. Bd2 Bc5 24. Rb3 b4 25. Qc2 Rec8 26. Rfb1 Ra8 27.
Qd1 Ra2 28. R1b2 Rca8 29. Rxa2 Rxa2 30. Bxb4 Bd4 31. Bd2 Kg7 32. Rb4 Ba7 33.
Rc4 Qb7 34. Bc3 f6 35. Re4 Ra3 36. Ba1 Qb6 37. d4 Qa6 38. Bb2 Ra2 39. Qb3 Bxd4
40. Bxd4 Rxe2+ 41. Rxe2 Qxe2+ 42. Kh3 Qf1+ 43. Kh4 exd4 44. Qb7+ Kh6 45. Qb4
Qd1 *
Position (FEN): 8/7p/5ppk/8/1Q1p3K/5PP1/7P/3q4 w - - 4 46
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 546
Best move: Qf8#