Planet with a Ring II - Karakuri Creation Group iDventure The chained perimeter pieces create Illustrations Roland MacDonald easy_roller_1087 Bruns Zodiac Sign:Aries (Widder)

The chained perimeter pieces create an unusual constraint that adds an extra layer of challenge to the classic sliding puzzle format

and diagonal produces the same sum

LoopHole is a puzzle lock designed by Boaz Feldman of Puzzlocks

Each round is broken into two phases: day and night

where the apparent simplicity masks a complex and engaging solution

Planet with a Ring II Karakuri Creation Group iDventure The chained perimeter pieces create Illustrations Roland MacDonald easy_roller_1087 Bruns Zodiac Sign:Aries (Widder) The chained perimeter pieces create an unusual constraint that adds an extra layer of challenge to the classic sliding puzzle format and diagonal produces the same sum