Soduku Solver solves 6x6 soduku of easy and medium level.
A butterfly adventure -very basic- game made with javascript
API for all possible cellular automata that work same at all angles
Python implementation of the Dual N-Back mental exercise
Puzzle game demonstrating whats so hard about binary integer factoring
Fifteen puzzle, with its own goal-seeking to find the best solution
Constraint Logic can solve word logic puzzles.