About this opening
Sicilian Defense: Richter-Rauzer Variation, Classical Variation is an opening in the Encyclopedia of Chess Openings,
classified under code B63. ECO group B (B00–B99)
covers semi-open games (1.e4 with Black playing anything other than 1…e5), with the Sicilian, French, Caro-Kann and Pirc/Modern at its heart. This particular variation is reached
after 14 half-moves from the
starting position, with the move sequence 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7.
It belongs to the Sicilian Defense family.
Within that family this is a level-2 branch (the Richter-Rauzer Variation → Classical Variation line). The immediate parent line is Sicilian Defense: Richter-Rauzer Variation, transitioned via 7…Be7.
The opening sequence in prose form: 1.e4 c5, 2.Nf3 d6, 3.d4 cxd4, 4.Nxd4 Nf6, 5.Nc3 Nc6, 6.Bg5 e6. From this position exactly one named continuation is recorded in the encyclopaedia.