Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Zukertort_Variation
Moves: 1. d4 d5 2. Nf3 e6 3. Bf4 c5 4. e3 Nc6 5. c3 Nf6 6. Bd3 Nh5 7. Bg5 Qb6 8. Na3
Qxb2 *
Position (FEN): r1b1kb1r/pp3ppp/2n1p3/2pp2Bn/3P4/N1PBPN2/Pq3PPP/R2QK2R w KQkq - 0 9
White to move.
Themes:  Middlegame  
Puzzle rating: 1674
Best move: Nb5