Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Nh6 7. O-O cxd4 8. cxd4
Nf5 9. a4 a5 10. Nc3 Nfxd4 11. Nxd4 Qxd4 12. Qc2 Nb4 13. Qb1 Qxe5 14. Nb5 Bd7
15. g3 h5 16. Bf4 Qxe2 17. Nc7+ Ke7 18. Nxa8 f6 19. Re1 Qf3 20. Re3 Qg4 21. Nb6
e5 22. Bxe5 fxe5 23. Rxe5+ Kd8 24. Nxd5 Nxd5 25. Rxd5 Kc8 26. Qc2+ Kb8 27. Rc1
Bb4 28. Qc7+ Ka8 29. Rxd7 Rb8 30. Rxg7 Qe6 31. Rg5 Re8 32. Rb5 Qe4 33. Qd7 Re7
34. Qd8+ Ka7 35. Rxh5 Bd2 36. Rf1 Qe2 37. Rh8 Bb4 38. Qd4+ b6 39. Rc1 Bc5 40.
Qf4 Qxb2 41. Qb8+ Ka6 42. Rd1 Qxf2+ 43. Kh1 Re1+ 44. Rxe1 *
Position (FEN): 1Q5R/8/kp6/p1b5/P7/6P1/5q1P/4R2K b - - 0 44
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1650
Best move: Qf3#