Chess puzzle (Advantage)
Opening: Old_Indian_Defense, Old_Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. c4 d6 3. g3 g6 4. Bg2 Bg7 5. Bf4 O-O 6. Qd2 Nc6 7. Bh6 Bxh6 8.
Qxh6 Nxd4 9. Na3 c6 10. Rd1 Nf5 11. Qg5 Qa5+ 12. Rd2 d5 13. cxd5 cxd5 14. g4
Nd6 15. Nf3 Nde4 16. Nc4 dxc4 *
Position (FEN): r1b2rk1/pp2pp1p/5np1/q5Q1/2p1n1P1/5N2/PP1RPPBP/4K2R w K - 0 17
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1039
Best move: Qxa5