Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 g6 5. Bg5 Bg7 6. cxd5 Nxd5 7. Nc3 O-O 8. e4
Nb6 9. Rd1 Be6 10. Qc2 h6 11. Be3 N8d7 12. Bd3 Bc4 13. O-O Bxd3 14. Qxd3 Qc7
15. Qd2 Kh7 16. Qe2 Rad8 17. a4 a5 18. h4 Nf6 19. Ne5 Nbd7 20. Nc4 Rfe8 21. f4
b5 22. axb5 cxb5 23. Nxb5 Qb7 24. Nd2 Nxe4 25. Qf3 Qxb5 26. Nxe4 f5 27. Ng3 Nf6
28. h5 Rc8 29. hxg6+ Kxg6 30. d5 h5 31. Bd4 Rh8 32. Rfe1 h4 33. Ne2 Ng4 34. Nc3
Bxd4+ 35. Rxd4 Qc5 36. Qd3 Rhf8 37. Re6+ Rf6 38. Rxf6+ exf6 39. d6 Re8 40. Kf1
Re3 41. Qc4 Nh2+ 42. Kg1 Ng4 43. Qxc5 *
Position (FEN): 8/8/3P1pk1/p1Q2p2/3R1Pnp/2N1r3/1P4P1/6K1 b - - 0 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 939
Best move: Re1#