[blml] hesitation, less than 20 seconds

[Steve Willner]

> From: Laszlo Hegedus <hegelaci at cs.elte.hu>
> At this moment the tray came back after a real tempobreak (West 
> hesitated a little before the 6 diamonds), but about 10 to 15 seconds 
> only.

Just to summarize what others have already written: using screens,
10-15 s is rarely a tempo break.  If in a specific case it is a break 
and is attributable to a known player, the usual UI rules apply.  If it 
isn't a tempo break at all, then players are free to do whatever they want.

The advantage of screens (or at least one advantage) is that tempo 
breaks are much rarer than without them.