1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... b8c6 The Classical Variation of the Sicilian is very popular again and, if we think about it, it is one of the most reliable, taking into account the opening principles of chess such as prioritizing development, starting with the knights. That said, following these principles is no guarantee of not getting mated in the Sicilian, as we shall see. 6. c1g5 The Richter-Rauzer Variation is the best and most popular option against the Classical Sicilian. 6... e7e6 