Chess puzzle (Crushing)
Opening: Indian_Defense, Indian_Defense_West_Indian_Defense
Moves: 1. d4 Nf6 2. c4 g6 3. e3 Bg7 4. Nf3 O-O 5. Be2 d6 6. O-O Bf5 7. Nbd2 c5 8. a3
Nc6 9. d5 Na5 10. Re1 Qb6 11. Bf1 Ne4 12. Bd3 Nxd2 13. Qxd2 *
Position (FEN): r4rk1/pp2ppbp/1q1p2p1/n1pP1b2/2P5/P2BPN2/1P1Q1PPP/R1B1R1K1 b - - 0 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1264
Best move: Nb3