Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 4. e3 e6 5. g4 c5 6. g5 Nfd7 7. Qg4 Nc6 8. O-O-O
b5 9. Qg3 Bb7 10. Bc7 Qc8 11. Nf3 Be7 12. Bd6 O-O 13. Bxe7 Nxe7 14. h4 Nf5 15.
Qf4 cxd4 16. exd4 Qb8 17. Ne5 Nxd4 18. Qxd4 Qxe5 19. f4 Qxd4 20. Rxd4 Nb6 21.
Bh3 g6 22. Re1 Nc4 23. h5 Rac8 24. h6 Rfe8 25. Bg2 Nd6 26. Rd2 Nf5 27. Rde2
Red8 28. Re5 Rc4 29. Ne2 Kf8 30. b3 Rc7 31. Kb2 Rdc8 32. c3 b4 33. cxb4 Rc2+
34. Ka3 Rd2 35. Bh3 Rcc2 36. Nc1 Nd6 37. Bxe6 Nb5+ 38. Ka4 Rxa2+ 39. Nxa2 *
Position (FEN): 5k2/1b3p1p/p3B1pP/1n1pR1P1/KP3P2/1P6/N2r4/4R3 b - - 0 39
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1440
Best move: Rxa2#