pdca

The problem is that after claiming the clock still runs and if opponents do not respond to the claim quickly enough (might as well be intentionally), the claiming player can and will be kicked out of the tourney. I have seen it couple of times happening to my partners and since then have learned to avoid it. That is, when opps do not respond after 5 seconds or so, I have to cancel the claim and start playing again.

I'm not sure, happened in robot tournament.

Here's how it went When there were 4 tricks to go, GIB somehow "forgot" about the last trump and went down 2 instead of pulling it and going -1.