George Duke wrote on Wed, Feb 12, 2014 06:50 PM UTC:
Apply the four-move Mutator to Melee, a random CV not in the Multi-move list, http://www.chessvariants.org/large.dir/melee.html, as one example which has mostly short-range pieces. There should be 5000 or 20000 alternatives per ply, in the same range of choices as arimaa. In Melee for this purpose, special design must limit power of the three long-range pieces, or substitute mid-rangers having the same radials. Would three or four movements per turn, "elevate complexity of [the CV] to a higher level without affecting the theoretical size of the game tree?" Or is it necessary always to add condition other than extra move per turn, to get complexification?
That quotation above, http://en.chessbase.com/post/a-new-challenging-chess-variant, is wording at the Chess Base article on Switch Side Chain -- the Chain there is excellent new Mutator in spirit of Variantism not exactly seen before (although here was another Chain worth re-looking at as a Win Condition: http://www.chessvariants.org/other.dir/fools.html.)