Chess puzzle (Crushing)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. cxd5 Qxd5 4. Nc3 Qa5 5. Bd2 Qb4 6. Qa4+ Qxa4 7. Nxa4 Nc6
8. Nf3 Bd7 9. Nc5 Bc8 10. Ne5 Nxd4 11. Rc1 b6 12. e3 Ne6 *
Position (FEN): r1b1kb1r/p1p1pppp/1p2nn2/2N1N3/8/4P3/PP1B1PPP/2R1KB1R w Kkq - 1 13
White to move.
Themes:  Opening  
Puzzle rating: 1292
Best move: Bb5+