Chess puzzle (Advantage)
Opening: Nimzowitsch_Defense, Nimzowitsch_Defense_Pseudo-Spanish_Variation
Moves: 1. e4 Nc6 2. Bb5 a6 3. Bxc6 bxc6 4. Nc3 e5 5. Nf3 f6 6. O-O d5 7. exd5 cxd5 8.
d4 Bb4 9. a3 Bxc3 10. bxc3 e4 11. Nd2 Ne7 12. Nb3 O-O 13. Na5 c5 14. dxc5 *
Position (FEN): r1bq1rk1/4n1pp/p4p2/N1Pp4/4p3/P1P5/2P2PPP/R1BQ1RK1 b - - 0 14
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1070
Best move: Qxa5