B20
Chicago Defense, Smith-Morra Accepted, Sicilian
1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Bc4 e6 6. Nf3 Nf6 7. O-O a6 Opening moves: 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Bc4 e6 6. Nf3 Nf6 7. O-O a6. This position is classified under ECO code B20.
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