Chess puzzle (Advantage)
Opening: Horwitz_Defense, Horwitz_Defense_Other_variations
Moves: 1. d4 e6 2. Nc3 Be7 3. Bd2 Nf6 4. Be3 O-O 5. Qd2 d6 6. O-O-O e5 7. dxe5 dxe5 8.
f3 Bd6 9. Bf2 Bf5 10. e3 Nc6 11. Bd3 Bxd3 12. cxd3 Nb4 13. Nge2 Nxa2+ *
Position (FEN): r2q1rk1/ppp2ppp/3b1n2/4p3/8/2NPPP2/nP1QNBPP/2KR3R w - - 0 14
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 875
Best move: Nxa2