Chess puzzle (Crushing)
Opening: Kings_Indian_Attack, Kings_Indian_Attack_French_Variation
Moves: 1. Nf3 c5 2. g3 d5 3. Bg2 Nc6 4. O-O e5 5. c4 d4 6. e3 h5 7. exd4 cxd4 8. Qa4
Bd7 9. Qb5 Qc7 10. Re1 f6 11. d3 *
Position (FEN): r3kbnr/ppqb2p1/2n2p2/1Q2p2p/2Pp4/3P1NP1/PP3PBP/RNB1R1K1 b kq - 0 11
Black to move.
Themes:  Middlegame  
Puzzle rating: 1764
Best move: Nb4