Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 c6 7. Bd3 Qc7 8. Qc2
h6 9. Bxf6 Bxf6 10. O-O Na6 11. a3 Rb8 12. Rac1 Qe7 13. Rfe1 Nc7 14. e4 dxe4
15. Nxe4 Na6 16. Nxf6+ Qxf6 17. Ne5 c5 18. d5 exd5 19. cxd5 b6 20. Nc6 Bb7 21.
Nxb8 Nxb8 22. Bc4 Rd8 23. Rcd1 Nd7 24. Qb3 Ne5 25. Rd2 a6 26. a4 Nxc4 27. Qxc4
Qg6 28. Red1 Kh8 29. b4 cxb4 30. Qxb4 a5 31. Qb5 Kh7 32. f3 Rd6 33. Qe2 h5 34.
Qe4 f5 35. Qc2 h4 36. Qb3 h3 37. g3 Qf6 38. Qc4 Qd8 39. Rd4 g5 40. Qc2 Bc8 41.
Qe2 Rd7 42. d6 Qf6 43. f4 g4 44. Qb5 Qf7 45. Qxb6 Bb7 46. Qxa5 Be4 47. Qe5 Qa2
48. a5 *
Position (FEN): 8/3r3k/3P4/P3Qp2/3RbPp1/6Pp/q6P/3R2K1 b - - 0 48
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 848
Best move: Qg2#