The Semi-Slav Defense: Noteboom Variation is a chess opening classified under ECO code D31 in the Closed & Semi-Closed Games family, arising from 1.d4 d5, including the Queen's Gambit, Slav Defense, and related systems. It is reached after 4 moves: 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4. The resulting position leaves white to move.
Resulting Position
1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4
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