Chess puzzle (Checkmate)
Opening: English_Defense, English_Defense_Other_variations
Moves: 1. d4 b6 2. c4 Bb7 3. Nc3 e6 4. e3 Qe7 5. Bd3 Nc6 6. Qc2 O-O-O 7. f4 g6 8. Nf3
Bg7 9. O-O h6 10. a4 g5 11. fxg5 hxg5 12. a5 g4 13. d5 gxf3 14. dxc6 dxc6 15.
Rxf3 c5 16. axb6 axb6 17. Be4 c6 18. Ra7 Qh4 19. Rh3 *
Position (FEN): 2kr2nr/Rb3pb1/1pp1p3/2p5/2P1B2q/2N1P2R/1PQ3PP/2B3K1 b - - 3 19
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 847
Best move: Qe1#