Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Kings_English_Variation
Moves: 1. c4 e5 2. Nc3 Nc6 3. Nf3 Bb4 4. Nd5 d6 5. Qa4 Nf6 *
Position (FEN): r1bqk2r/ppp2ppp/2np1n2/3Np3/QbP5/5N2/PP1PPPPP/R1B1KB1R w KQkq - 2 6
White to move.
Themes:  Opening  
Puzzle rating: 1523
Best move: Nxb4