One Gram Software
Shamrock
FreeUnique Jigsaw Puzzle: Assemble Shapes Without a Picture
Windows
Amorphous Maze
Trial versionExplore Challenges with Amorphous Maze
WindowsRobot University
FreeRobot University: A Challenging Block Fitting Puzzle
Windows
KarnaughMap
Trial versionKarnaughMap: Interactive Boolean Algebra Tool
Windows