Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bg5 h6 6. Bh4 Nbd7 7. e3 Ne4 8. Bxe7
Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Nf6 12. c4 dxc4 13. Bxc4 O-O 14. O-O b6
15. Ne5 Bb7 16. Rac1 Rad8 17. a4 Nd5 18. e4 Nf4 19. Rfe1 Rxd4 20. g3 Qg5 21.
Nf3 Nh3+ 22. Kg2 Bxe4 23. Kxh3 Bxf3 24. Qxf3 Qc5 25. Bxf7+ Rxf7 26. Rxc5 bxc5
27. Qa8+ Kh7 28. Qxa7 Rxf2 29. Qxc5 Rdd2 30. Rh1 Rc2 31. Qd4 Rfe2 32. Qd3+ Kg8
33. Qd8+ Kh7 34. Qh4 c5 35. Qf4 c4 36. g4 c3 37. Qf5+ Kh8 38. a5 Ra2 39. Qc8+
Kh7 40. Qxc3 Rac2 41. Qb4 g5 42. a6 *
Position (FEN): 8/7k/P6p/6p1/1Q4P1/7K/2r1r2P/7R b - - 0 42
Black to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 861
Best move: Re3#