Chess puzzle (Advantage)
Opening: Indian_Defense, Indian_Defense_Anti-Grunfeld
Moves: 1. d4 Nf6 2. c4 g6 3. d5 Bg7 4. Nc3 d6 5. e4 O-O 6. Bd3 e6 7. Bg5 e5 8. h3 c6
9. Rc1 cxd5 10. cxd5 h6 11. Bd2 Qb6 12. Qc2 Nbd7 13. Nge2 Nc5 14. O-O Nxd3 15.
Qxd3 Qxb2 *
Position (FEN): r1b2rk1/pp3pb1/3p1npp/3Pp3/4P3/2NQ3P/Pq1BNPP1/2R2RK1 w - - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 2175
Best move: Na4