Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 Nf6 3. Nf3 Bg4 4. e3 e6 5. Nbd2 Be7 6. c3 O-O 7. Bd3 c5 8. O-O
Nc6 9. Qc2 c4 10. Be2 b5 11. b3 b4 12. bxc4 bxc3 13. Qxc3 Bb4 14. Qc2 Bf5 15.
Qa4 Qd7 16. Ne5 Nxe5 17. Qxb4 Nd3 18. Qc3 Nxf4 19. exf4 Rfc8 20. c5 Ne4 21.
Nxe4 Bxe4 22. h4 Qe7 23. f3 Bg6 24. g3 Rc7 25. Rfe1 h5 26. Rab1 Qf6 27. Bd3 a5
28. Rb2 a4 29. a3 Raa7 30. Reb1 Bxd3 31. Qxd3 g6 32. Kg2 Kg7 33. Rb4 Qe7 34.
Qd1 Qd7 35. Rb6 Rcb7 36. R1b4 Rxb6 37. Rxb6 Rb7 38. Qb1 Ra7 39. Qb5 Qe7 40. Ra6
Rb7 41. Qxa4 Rb2+ 42. Kh3 Qf6 43. Rb6 Qf5+ 44. g4 hxg4+ 45. fxg4 *
Position (FEN): 8/5pk1/1R2p1p1/2Pp1q2/Q2P1PPP/P6K/1r6/8 b - - 0 45
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 986
Best move: Qd3#