♟
D12

Pin Defense, Slav

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4

Opening moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4. This position is classified under ECO code D12.

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