Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 d6 6. e4 axb5 7. Nxb5 Bb7 8. Nc3
g6 9. Bb5+ Nbd7 10. Nge2 Bg7 11. O-O O-O 12. a4 Qa5 13. Bd2 Ne5 14. f4 Ned7 15.
Bc4 Ba6 16. Nb5 Qb6 17. b3 Rfb8 18. Rc1 Nxe4 19. Qc2 Nxd2 20. Qxd2 Bxb5 21.
axb5 Qa5 22. Qe3 Bf6 23. f5 Nb6 24. fxg6 hxg6 25. Qh6 Qa2 26. Nf4 Nxc4 27. bxc4
Qd2 28. Qh3 Ra2 29. Rfd1 Qf2+ 30. Kh1 Qxf4 31. Rf1 Qe5 32. Qd7 Rba8 33. b6 Ra1
34. b7 Kg7 35. bxa8=Q Rxa8 36. Rce1 Qh5 37. Re3 Be5 38. Rh3 Qe2 39. Rhf3 Bf6
40. Qb7 Ra2 41. R3f2 Qxf2 42. Rxf2 Ra1+ 43. Rf1 *
Position (FEN): 8/1Q2ppk1/3p1bp1/2pP4/2P5/8/6PP/r4R1K b - - 2 43
Black to move.
Themes: Hanging Piece Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 1194
Best move: Rxf1#