[vyqbccbx] No two-square initial pawn move

Consider a chess variant in which the two-square initial pawn move is eliminated.  More moves happen before pieces start interacting with each other.  Openings become less sharp: less often will a move force a narrow set of good responses.  This allows opening theory to become more varied, seeking a similar goal as Chess960: prevent opening theory from causing the death of the game through book draws.

Of course, we could still also additionally shuffle pieces, as Chess960 does, behind our slower-moving pawns.

Previously: random placement of pawns as an alternative to Chess960, and hypermodern openings.