Showcases 154 shogi pieces from all the old and medieval shogi variants.

Create the desired weight by balancing the given tokens.

Simulate food supply and prosperity in 'cell' colonies.

A simple adding machine.

Write your code in the more expressive preprocesor language, then run it through the preprocessor to produce your .zrf file.

Drawing tool for graphs (town-road maps); also contains a few associated brain teasers.

A 19th century logic device.