A31
Two Knights Variation, English
1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 Opening moves: 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4. This position is classified under ECO code A31.
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