Problems by Bill Liu

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Buried Treasure0.0071519116084%4.4Mediumen
Gym Leader's Territory0.0517821817781%3.4Mediumen
Mahjong Madness0.00846665786%3.5Mediumen
Tricky Triangulation0.00613875867%7.2Harden