Johnny Luken wrote on Sun, May 10, 2015 09:58 PM UTC:
Regression to predetermined strategy would be countteracted by Blacks freedom to choose an answering array.
This gives 921,600 starting positions.
Depending on how much of a counteradvantage Black gains, moves could be staggered-White places a piece, Black answers.
A constructive phase would add to Chesses itinerary, though how much genuine extra depth is added by such pregame metastrategy and how much real nuance these premoves would have I'm not sure.