Caro-Kann Defense: Panov-Botvinnik, Herzog Defense

The Caro-Kann Defense: Panov-Botvinnik, Herzog Defense is a chess opening classified under ECO code B13 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 7 moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 dxc4 7. d5 Na5. The resulting position leaves white to move.