Vincible: I don't get scoring algorithm - this problem is 4d/90 XP. For example, Kanzufu 67 is 2k/144XP. I'm not doing tsumego for points so I don't really care, however it seems a little bit odd in many cases.
caranthir: d4rkm4tter stated previously that the points depend also on the respective collection.
d4rkm4tter stated previously that the points depend also on the respective collection.