Chess puzzle (Crushing)
Opening: Polish_Opening, Polish_Opening_Other_variations
Moves: 1. b4 Nf6 2. Bb2 e6 3. a3 g6 4. Nc3 Bg7 5. Ne4 O-O 6. Nxf6+ Bxf6 7. d4 d5 8.
Nf3 a6 9. e3 Nc6 10. Bd3 Re8 11. O-O e5 12. dxe5 Nxe5 13. Nxe5 Bxe5 14. Bxe5
Rxe5 15. c4 d4 16. Be2 Qg5 *
Position (FEN): r1b3k1/1pp2p1p/p5p1/4r1q1/1PPp4/P3P3/4BPPP/R2Q1RK1 w - - 2 17
White to move.
Themes:  Middlegame  
Puzzle rating: 1544
Best move: f4