Codo, on 2013-March-18, 06:59, said:
Why does a statement like: I think you are fighting for the 5. down be a consession?
He did not show his cards, nor did he stated a line of play, nor did he say: I am, 4 down or I make 7 tricks.
You can't say to the ops "it doesn't matter what you do" when actually it does, I hope you accept that. In general statements that do amount to "it doesn't matter what you do" are likely to be interpreted as claims.
Let's look at what L68 actually says to see why.
L68A Any statement to the effect that a contestant will win a specific number of
tricks is a claim of those tricks. A contestant also claims when he suggests
that play be curtailed, or when he shows his cards.
L68B1 Any statement to the effect that a contestant will lose a specific number
of tricks is a concession of those tricks; a claim of some number of
tricks is a concession of the remainder, if any. A player concedes all the
remaining tricks when he abandons his hand.
So whilst showing your cards can be a claim, it is not required to show your cards in a claim. Stating a line of play isn't even part of the definition of what a claim is, and we have all had many claims without lines of play. Sometimes players don't even mention the number of tricks, they just expect you to see the obvious. So none of these things is a necessary part of a claim, though there presence would make it easier to say it was one.
Statements to the effect "it doesn't matter what you do" are likely to be interpreted as claims because of the wording on "suggests that play be curtailed". But to my mind, what makes this one quite clealy a claim is that it did mention a precise number of tricks, albeit in a wrapped up way.
In mentioning worrying about the 5th (impossible) undertrick, E made it clear that he was expecting to go 4 off, which is what will happen against best defence. If E had said "you are worrying about the 27th undertrick", or some other number that had no relation to the cards in front of us, that would obviously be a joke, not a claim of a precise number of tricks. But precisely because E has implied just the 4-off result he sees as likely, and 4-off is indeed the likely outcome against best defence, we can and should interpret it as a claim of 4-off. 5-off can't happen unless E deliberately plays Misere, because E now has 7 easy tricks regardless of the defence.
If it had less clearly been a jokey number like "27th undertrick", and maybe I'd say it was a statement of the kind "it doesn't matter" suggesting play be curtailed. And if not quite clear enough for that, I'd find it an offence against the proprieties (as it clearly is) and then adjust under Law 23. Fortunately on this occasion it is fairly straightforward to interpret as a claim.