Chess puzzle (Crushing)
Opening: Richter-Veresov_Attack, Richter-Veresov_Attack_Other_variations
Moves: 1. d4 d5 2. Nc3 Nf6 3. Bg5 e6 4. f3 Be7 5. e4 c6 6. Bd3 h6 7. Bxf6 Bxf6 8. e5
Bh4+ 9. g3 Be7 10. Nge2 Qc7 11. Qd2 Nd7 12. O-O-O b6 13. f4 Bb7 14. g4 O-O-O
15. f5 exf5 16. gxf5 Bg5 17. Nf4 c5 *
Position (FEN): 2kr3r/pbqn1pp1/1p5p/2ppPPb1/3P1N2/2NB4/PPPQ3P/2KR3R w - - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1688
Best move: Nb5