TANGRAM is a well known Chinees puzzle.
The goal is to form various shapes from 7 pieces.
This program chalenges you to solve a large number of these puzzles. Puzzles range from very simple ones for small children to difficult ones for adults.
Also an editor is provided that lets you create your own collections of puzzles. You can even use different sets of pieces.
SYSTEM REQUIREMENTS
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A modern PC, running Windows95 or NT4.0 is required. The program runs best in a screen resolution of 800x600 or higher but also works in other resolutions.
You can also find further information about the program and other software I wrote on the Internet:
http://www.cs.ruu.nl/~markov/kids/