Pure functions vs. in wallet code

[liam]

@alexp

So if the two RPS players had 1 round on-chain {1}* , followed by 10 rounds off-chain → {11} and the last transition was from reveal to start.
Now e.g. player B goes offline. A wants to de-fund. The transition from {1}*->{11} is (in my opinion) rated as invalid by the rps.validTransition.

How would A defund without having to provide all atomic transitions to {11}?

In this example, since it is a two player game, if {10} was signed by B then A can challenge B on-chain by calling forceMove with {10} and {11}. If, {11} was isFinal then he would call conclude.