I'm wondering what people tend to do when they spot a mistake has been made. Do you attempt to rewind to the point where the mistake was made, or do you say that if a mistake isn't spotted then it's fair game?

For example, in our last melee game we were going through the Challenge phase and noticed that player A was attacking player B whilst he was supporting that player via the titles, and therefore shouldn't have attacked him. We tried to 'rewind' to the start of that player's challenge phase to correct the oversight. But it occurs to me that this isn't without it's own problems. For example, player B now knows that player A had the intent to challenge him and may be more inclined to dish out some retribution than might otherwise have been the case. Or perhaps some events have been played so now everybody knows what's in somebody's hand, etc.

So I'm thinking it might be easier to just say "what is done, is done" and carry on after acknowledging the mistake.

How do others address this situation?

Generally - if its a passive efefct that occurs whether or not the player wnats it to (like all chacrters get -1 or somehting) we try and rewidn as best as possible. similarly with teh titels - if you Support someone and you attack them - go back and attack someone else if you catch it in the same phase

If player B is then inclined to dish out some preemptive hurt - oh well: pay attenton to teh titels next time. If this error isn;t spotted until later in the turn, when other players are actviely doing challenges - it get sticky. Depends on how far along you are. If it is after the phase - too late. Don't back it up and re-do everything.

Responses that are forgotten shoud never be re-wound to. You learn better that way.

I tend to agree with Stag.

If you're in the middle of a mistake, correct it. If Player A has declared an attack on Player B, and he supports Player B, if the challenge hasn't resolved yet, "rewind" to the start of the challenge. If, however, Player A attacked Player B, and he supports Player B, and no one realizes the error until the Dominance phase - or the following Challenge phase - I'm thinking "too late now."

If it were a competitive game with prizes and trophies on the line, I'd say don't back up if anything revealing information has been done (playing events, declaring further challenges, etc.). Rewinding gets kind of messy and subjective which is not where I want to go when the outcome of the game has some further implications. If that's not the case, I'd be in favor of rewinding in whatever fashion all parties involved agree on (pretty much anything that doesn't end up being more disruptive to the flow of the game than the original misplay).

I'm still not sure I've played a complete melee game with the titles without overlooking one of their implications at some point in the game (whether it's one player attacking someone he supports or not claiming a power for defeating an opposed title or forgetting about the strength bonus...). The other one that comes up somewhat often is satisfying claim as though it were 1 when it's really 0 or 2. Usually, I am in favor of just adjusting the claim right when this is noticed, though sometimes that can be more disruptive than just letting the incorrect claim resolution stand.

In your example, I'd have rewound back to the start of the challenge. That's what we do when we discover this kind of msitake while there is still time to fix it. OFten, after the fact (like a later phase, or even challenge) the damage is done and we can't go back.

In general, our group is willing to let something be rewound if no other action has been taken after it. Say I passed on Marshalling and forgot to play a 0-cost location and I catch it before we've brought anything out of Shadows in the Challenge Phase, we're all pretty good down here about letting it be played. If anything else has happened though, there is usually a loud chorus of "We don't go back that far!" heard from the other player(s) in the game, and echoed by any other AGOTers in the area. It's become something of a catchphrase of ours. Who knows, maybe we'll put it on some Valar Midwestous shirts in time for GenCon this year.... hey... that's not a half bad idea.....

In a major tournament setting though, there's no going back unless it's a passive as ktom mentioned. And even then, the implications and trickledown effect can be pretty tricky.