All ECO Codes
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B66
Sicilian Defence
Richter-Rauzer, Rauzer Attack, 7...a6
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6