How will the time bonus be earned on this round?
Does it require all 4 solvers to deduce their rules and submit all 4 puzzles each and get all those 16 puzzles correct and solve the two team puzzles correctly and not open any envelopes?
the score if reduced by 15% if a team opens any number of envelopes OR is reduced by 15% PER EACH ENVELOPE which is open (potentially 45%)?
Per each envelope. I'll make this clearer. And it is potentially 60% I suppose, since a team may open all four envelopes too to see the solved examples again.