Sicilian Defense: Modern Variations, Tartakower

The Sicilian Defense: Modern Variations, Tartakower is a chess opening classified under ECO code B50 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 4 moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. c3. The resulting position leaves black to move.