Chess Opening Theory/1. Nf3/1...Nf6/2. c4/2...c5/3. Nc3/3...e6

= English, Symmetrical =

Theory table
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1.Nf3 Nf6 2.c4 c5 3.Nc3 e6 also 1.Nf3 Nf6 2.c4 e6 3.Nc3 c5