Chess puzzle (Advantage)
Opening: Vant_Kruijs_Opening, Vant_Kruijs_Opening_Other_variations
Moves: 1. e3 e6 2. Qf3 Qf6 3. Na3 Na6 4. Nc4 Nc5 5. Na5 Na4 6. Nxb7 *
Position (FEN): r1b1kbnr/pNpp1ppp/4pq2/8/n7/4PQ2/PPPP1PPP/R1B1KBNR b KQkq - 0 6
Black to move.
Themes: Capture the Defender Opening  
Puzzle rating: 1141
Best move: Qxf3