The rising opening
This is the whole variant. The first lay-down of the round must total at least 51 points; each subsequent player has to open above whatever the last opener managed. Open early and cheap and you set a low bar for everyone behind you — open late and you may need a very large meld to get in at all.
In partners the threshold is per team: the first team opens at 51 or more, and the second team must beat the first team’s total by at least one point.

