> The problem with pursuing "identity" is that these rules don't anchor the identity of pieces so far as I can tell.

Again, the identity of objects is assumed in all sets of rules or laws, as the apple/banana example was intended to show. When you write the rules for board games, you do not need to re-derive the entire foundations of metaphysics and discuss what it really means for an object to have identity. You assume these words have the normal meanings commonly associated with them.

> The only way anyone could tell which token was used in place of a normative queen shaped piece would be if there were video or photographs of the actual board at that phase of the game.

Whether people can tell that a rule was violated has no bearing on whether or not it was actually violated. I thought we were talking about what the rules say, not how easy or difficult they are to enforce. Of course if you are by yourself and there are no spectators or official arbiters then you can do whatever you want; nobody is going to stop you.

> In a formal setting it seems like an arbiter or judge or proctor or whomever should also be informed for accurate record keeping.

But if you're already pausing the clock to inform the arbiter anyway, why can't the arbiter just give you another queen? I thought the entire point of this whole rook-as-queen exercise was to avoid having to stop the game and talk to the arbiter?

> The fruit analogy raises the stakes to fraud while the use in a game, unless a player tried to cheat, is inconsequential to those players.

We're not talking about the stakes or importance. I agree that what token chess players use as the queen is less meaningful than actual crimes, but that wasn't the point of the analogy.