Did a little summary from my notes at my favorite nun place, battlegrounds:
Goal is to get to get to round 21 and last 6 tries:
-3 times round 20 (1 time ran out, 1 grapple, 1 dcrit2 tora tora tora)
-1 round 19 (spawned in pile of 6 an pile of 4 in next room)
-1 round 17 (got flipped without any scrolls with me)
-1 round 16 (curse and no time for restore potion)

Lets see this again when have again time to spend 8h in there! :)