Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. Nf3 Bg7 3. e3 e6 4. Be2 Ne7 5. a3 c6 6. b3 d5 7. Bb2 O-O 8. O-O Nd7
9. c4 b6 10. Nbd2 Bb7 11. Rb1 Qc7 12. cxd5 cxd5 13. Bd3 a6 14. Ng5 b5 15. f4
Qd8 16. Rf3 Nf5 17. Rh3 h6 18. Ngf3 Nf6 19. Qe2 Kh7 20. Ne5 Nd7 21. g4 Nxe5 22.
gxf5 Nxd3 23. Qxd3 exf5 24. Nf3 Rc8 25. Ne5 Bxe5 26. fxe5 Qg5+ 27. Kf2 f6 28.
Rg1 fxe5 29. Rxg5 e4 30. Qe2 f4 31. Re5 f3 32. Re7+ Kg8 33. Qf1 Rc2+ 34. Kg3
Rf5 35. Rxb7 Rg5+ 36. Kf4 Rxb2 37. Rxh6 Rbg2 38. Rhh7 *
Position (FEN): 6k1/1R5R/p5p1/1p1p2r1/3PpK2/PP2Pp2/6rP/5Q2 b - - 2 38
Black to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 1031
Best move: R2g4#