Chess opening · ECO A40
Mikenas Defense
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1. d4 Nc6
Mikenas Defense is catalogued under ECO code A40. It is reached after 1 move (2 half-moves): 1. d4 Nc6. After the last move it is White to play. White opens 1. d4. It is the defining line of the Mikenas Defense family, which has 4 catalogued lines in total. 2 deeper lines continue from here, listed below.