Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Kings_English_Variation
Moves: 1. c4 e5 2. Nc3 f5 3. d4 exd4 4. Qxd4 Nc6 5. Qe3+ Nge7 6. g3 d6 7. Bg2 Bd7 8.
Nf3 h6 9. O-O b6 10. Nd4 Nxd4 11. Bxa8 Nc2 12. Qf3 *
Position (FEN): B2qkb1r/p1pbn1p1/1p1p3p/5p2/2P5/2N2QP1/PPn1PP1P/R1B2RK1 b k - 2 12
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1645
Best move: Nxa1