Chess puzzle (Checkmate)
Moves: 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5. g3 d6 6. Bg2 c5 7. O-O Nc6 8. d5
Na5 9. Nd2 a6 10. Qc2 Rb8 11. b3 b5 12. Rb1 Bd7 13. e4 Ng4 14. h3 Nf6 15. Nd1
Qc8 16. Kh2 h5 17. Ne3 h4 18. g4 Nh7 19. f4 f5 20. exf5 gxf5 21. g5 e5 22. dxe6
Bxe6 23. Nd5 Bxd5 24. Bxd5+ Kh8 25. Bb2 Qc7 26. Rfe1 bxc4 27. Bxg7+ Qxg7 28.
bxc4 Qd4 29. Rf1 Rbe8 30. Nb3 Nxb3 31. axb3 Re3 32. Qb2 Rfe8 33. Qxd4+ cxd4 34.
Kg2 Nf8 35. Rbd1 Re2+ 36. Rf2 Ng6 37. Rxd4 Re1 38. Bf7 R8e3 39. Bxg6 Rg3+ 40.
Kh2 Rgg1 41. Bxf5 Rh1+ 42. Kg2 Rhg1+ 43. Kf3 *
Position (FEN): 7k/8/p2p4/5BP1/2PR1P1p/1P3K1P/5R2/4r1r1 b - - 4 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 968
Best move: Rg3#