Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 Bf5 3. Nc3 Nf6 4. Bg5 h6 5. Bh4 dxc4 6. e3 e6 7. Bxc4 Be7 8.
Nge2 O-O 9. O-O Ne4 10. Bxe7 Qxe7 11. Rc1 Nd7 12. Bd3 Rfc8 13. Nxe4 Qb4 14. Qc2
c5 15. a3 Qb6 16. Nxc5 Bxd3 17. Qxd3 Nxc5 18. dxc5 Rxc5 19. b4 Rd5 20. Qc2 Rad8
21. Nf4 Rd2 22. Qc4 Qd6 23. Qc7 Qa6 24. Qc3 Qd6 25. a4 Ra2 26. a5 Qe7 27. Qc7
Qe8 28. Rfd1 Rxd1+ 29. Rxd1 g5 30. Nh5 Qa4 31. Qd8+ Kh7 32. Qd4 Kg6 33. Ng3 Qc2
34. Qe4+ Qxe4 35. Nxe4 Rb2 36. Kf1 Rxb4 37. Rd7 Rxe4 38. Rxb7 Ra4 39. Rxa7 Kf6
40. a6 h5 41. Ra8 h4 42. a7 Ke5 43. Ke2 f5 44. g3 hxg3 45. fxg3 Ra2+ 46. Kf3 *
Position (FEN): R7/P7/4p3/4kpp1/8/4PKP1/r6P/8 b - - 2 46
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 994
Best move: g4#