Sicilian Defense: Dragon Variation, Yugoslav Attack, Sosonko Variation

The Sicilian Defense: Dragon Variation, Yugoslav Attack, Sosonko Variation is a chess opening classified under ECO code B77 in the Semi-Open Games family, where Black responds to 1.e4 with something other than 1...e5, including the Sicilian Defense, Caro-Kann, and Pirc. It is reached after 9 moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. Bc4 Nd7. The resulting position leaves white to move.