Chess puzzle (Crushing)
Opening: Russian_Game, Russian_Game_Three_Knights_Game
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 Bxc3 5. dxc3 Nxe4 6. Qd5 Nd6 7. Qxe5+ Kf8
8. Bb3 Nc6 9. Qe2 b6 10. O-O a5 11. a4 Ba6 12. c4 Nf5 13. Re1 Nfd4 14. Nxd4
Nxd4 15. Qe7+ *
Position (FEN): r2q1k1r/2ppQppp/bp6/p7/P1Pn4/1B6/1PP2PPP/R1B1R1K1 b - - 1 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 723
Best move: Qxe7