Chess puzzle (Crushing)
Opening: Kings_Indian_Attack, Kings_Indian_Attack_Double_Fianchetto
Moves: 1. Nf3 d5 2. g3 g6 3. c4 c6 4. Bg2 Bg7 5. cxd5 cxd5 6. O-O Nf6 7. Nc3 O-O 8. d3
Nc6 9. Rb1 e5 10. e4 d4 11. Ne2 Nh5 12. Ne1 f5 13. f4 Nf6 14. fxe5 Nxe5 15.
exf5 Bxf5 16. Rxf5 gxf5 17. Qb3+ Kh8 18. Qxb7 Rb8 19. Qxa7 Qa5 *
Position (FEN): 1r3r1k/Q5bp/5n2/q3np2/3p4/3P2P1/PP2N1BP/1RB1N1K1 w - - 1 20
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1070
Best move: Qxa5