Chess puzzle (Advantage)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Other_variations
Moves: 1. e4 c6 2. d4 h6 3. c4 d6 4. f4 g5 5. fxg5 hxg5 6. Bxg5 Qa5+ 7. Bd2 Qb6 8. Bc3
Bg7 9. Nf3 Nf6 10. Bd3 Ng4 11. h3 Nd7 12. Qe2 Nf8 13. Nbd2 Ne6 14. O-O-O *
Position (FEN): r1b1k2r/pp2ppb1/1qppn3/8/2PPP1n1/2BB1N1P/PP1NQ1P1/2KR3R b kq - 6 14
Black to move.
Themes:  Middlegame  
Puzzle rating: 1900
Best move: Nf4