Game Rank 5
Twist the three rings apart and then back into the solid shape.
Cast Square - Game Rank 6
This puzzle can be assembled into three different color combinations. Beware this puzzle is complicated by internal mechanics.
Cast Quartet - Game Rank 6
The most challenging of the cast puzzles, this unique puzzle has two different solutions once all the pieces are taken apart.
Perfect gift for a puzzle fan who love challenge!
Cast Spiral - Game Rank 5
The five pieces slides past each other vertically, keep in mind some are identical and some are not.
Game Rank 6 - Nutcase
Four pieces with a fifth piece locked inside. Unscrew the bolts to separate the puzzle and free the locked nut.