Chess puzzle (Checkmate)
Moves: 1. d4 e6 2. e4 b6 3. Nc3 Bb7 4. Bf4 a6 5. Nf3 h6 6. Bd3 g5 7. Bg3 g4 8. Nd2 h5
9. h4 Bg7 10. Nb3 d6 11. f3 gxf3 12. Qxf3 Qf6 13. Rf1 Qxf3 14. Rxf3 Nd7 15.
O-O-O f5 16. Re3 Bh6 17. Bf2 Bxe3+ 18. Bxe3 fxe4 19. Nxe4 O-O-O 20. Bg5 Rf8 21.
g3 Nh6 22. Nbd2 Nf5 23. c3 Bxe4 24. Nxe4 a5 25. Rf1 Kb7 26. Bf4 d5 27. Ng5 Rf6
28. Bb5 c6 29. Bd3 b5 30. Kc2 Ra8 31. a3 Rg6 32. Be2 Ng7 33. Bd3 Nf5 34. Re1
Nf8 35. Rf1 Kb6 36. Re1 c5 37. Nf7 Ra7 38. Ne5 Rgg7 39. Bxf5 exf5 40. Nd3 c4
41. Nc5 Nd7 *
Position (FEN): 8/r2n2r1/1k6/ppNp1p1p/2pP1B1P/P1P3P1/1PK5/4R3 w - - 2 42
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1390
Best move: Re6#