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Montevideo Defense is a chess opening that arises after 1.d4 Nc6 2.d5 Nb8. It is classified A40 in the ECO system, and the position after these moves has white to move.
Each of these is a named opening reached by playing on from 1.d4 Nc6 2.d5 Nb8. Open any of them to load the position on the board.