Chess puzzle (Crushing)
Opening: Kings_Gambit_Declined, Kings_Gambit_Declined_Queens_Knight_Defense
Moves: 1. e4 e5 2. f4 Nc6 3. Nf3 d6 4. Bc4 f6 5. f5 Bd7 6. a3 Qe7 7. Nc3 O-O-O 8. Nd5
Qe8 9. d3 Nge7 10. Be3 Nxd5 11. Bxd5 g6 12. g4 gxf5 13. gxf5 Ne7 14. c4 Bc6 15.
Bxa7 Bxd5 16. cxd5 b6 17. a4 Kb7 18. a5 Kxa7 *
Position (FEN): 3rqb1r/k1p1n2p/1p1p1p2/P2PpP2/4P3/3P1N2/1P5P/R2QK2R w KQ - 0 19
White to move.
Themes: Double Check Middlegame  
Puzzle rating: 897
Best move: axb6+