Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Other_variations
Moves: 1. d4 c6 2. Nf3 d5 3. e3 Bf5 4. c4 e6 5. Nc3 Bb4 6. cxd5 cxd5 7. Qa4+ Nc6 8.
Bb5 Ne7 *
Position (FEN): r2qk2r/pp2nppp/2n1p3/1B1p1b2/Qb1P4/2N1PN2/PP3PPP/R1B1K2R w KQkq - 4 9
White to move.
Themes: Pin Middlegame  
Puzzle rating: 1833
Best move: Qxb4