Chess puzzle (Advantage)
Opening: Nimzo-Indian_Defense, Nimzo-Indian_Defense_Samisch_Variation
Moves: 1. d4 e6 2. c4 Bb4+ 3. Nc3 Nf6 4. a3 Bxc3+ 5. bxc3 b6 6. f3 Nh5 7. e4 Qh4+ 8.
Ke2 Bb7 9. Nh3 Nc6 10. Bg5 Nf4+ 11. Bxf4 d6 12. Qa4 O-O 13. d5 exd5 14. cxd5
Na5 15. Nf2 *
Position (FEN): r4rk1/pbp2ppp/1p1p4/n2P4/Q3PB1q/P1P2P2/4KNPP/R4B1R b - - 2 15
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1316
Best move: Qxf4