Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Mongredien_Defense
Moves: 1. e4 g6 2. Nf3 Bg7 3. d4 b6 4. Bc4 Bb7 5. Ng5 d5 6. exd5 Bxd5 7. Bxd5 Qxd5 8.
O-O Qxd4 9. Qxd4 *
Position (FEN): rn2k1nr/p1p1ppbp/1p4p1/6N1/3Q4/8/PPP2PPP/RNB2RK1 b kq - 0 9
Black to move.
Themes:  Opening  
Puzzle rating: 1040
Best move: Bxd4