Chess puzzle (Checkmate)
Moves: 1. e3 c5 2. h3 Nc6 3. a3 g6 4. d3 Bg7 5. Nd2 e6 6. Ne2 Nge7 7. g3 d5 8. Bg2 Rb8
9. Nf1 b6 10. g4 Bb7 11. Neg3 h6 12. h4 O-O 13. g5 h5 14. f4 e5 15. Qe2 exf4
16. exf4 Nd4 17. Qf2 Nef5 18. Nxf5 Nxf5 19. Bh3 Re8+ 20. Kd1 Bd4 21. Qh2 Nxh4
22. Qg3 c4 23. Qxh4 cxd3 24. cxd3 Qe7 25. Rh2 Ba6 26. f5 Bxd3 27. Qxd4 *
Position (FEN): 1r2r1k1/p3qp2/1p4p1/3p1PPp/3Q4/P2b3B/1P5R/R1BK1N2 b - - 0 27
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1463
Best move: Qe1#