[0xFEE1DEAD]

I believe a tactical move blocking strategy could evolve from these rule changes. Imagine we're in a game that's more complex than what's depicted in fig 6 but the rooks are positioned identically. Additionally, there's a white pawn at c5. Wouldn't it then be advantageous for black to make the same move as shown in fig 6? If this move results in an illegal state nothing is lost since the pawn remains blocked. Perhaps this isn't the best example as my chess knowledge is somewhat limited, but do you see what I mean? Wouldn't this tactic allow players to maintain control over two positions simultaneously in certain scenarios?