Chess puzzle (Checkmate)
Moves: 1. c4 e6 2. d4 Bb4+ 3. Bd2 Bxd2+ 4. Nxd2 Nf6 5. e4 d5 6. cxd5 exd5 7. e5 Ne4 8.
Bd3 Nxd2 9. Qxd2 O-O 10. Ne2 Nc6 11. O-O Qh4 12. g3 Qe7 13. f4 Bg4 14. f5 Bxe2
15. Bxe2 Qb4 16. Qxb4 Nxb4 17. Rac1 Nc6 18. Rfd1 Rfe8 19. Bb5 Rab8 20. b3 Nxd4
21. Rxd4 c6 22. Bxc6 bxc6 23. Rxc6 Rxe5 24. Rd6 Rxf5 25. R6xd5 Rxd5 26. Rxd5 g6
27. Rd7 Ra8 28. Kf2 Kg7 29. Ke3 Kf6 30. Kd4 Ke6 31. Rb7 h5 32. h3 h4 33. g4 f5
34. g5 Rd8+ 35. Ke3 Rd7 36. Rb8 Rg7 37. Re8+ Kd5 38. Rd8+ Ke5 39. Rh8 f4+ 40.
Kf3 Rc7 41. Rxh4 Rc3+ 42. Kg4 *
Position (FEN): 8/p7/6p1/4k1P1/5pKR/1Pr4P/P7/8 b - - 2 42
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 778
Best move: Rg3#