Chess puzzle (Crushing)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 Nf6 2. c4 d5 3. cxd5 Nxd5 4. e4 Nb6 5. Nc3 e6 6. Nf3 c5 7. Bd3 Nc6 8. Be3
cxd4 9. Nxd4 Nxd4 10. Bxd4 a6 11. O-O Nd7 12. f4 Nf6 13. f5 *
Position (FEN): r1bqkb1r/1p3ppp/p3pn2/5P2/3BP3/2NB4/PP4PP/R2Q1RK1 b kq - 0 13
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1024
Best move: Qxd4+