Games and Puzzles

Interactive logical and mathematical puzzles with feedback and detailed solutions.

Celebrates math puzzles and mathematical recreations.

Collection of Java-based educational puzzles.

Fun, interactive brain teasers you can play anywhere.

A large and varied collection of puzzles by logicsmith Grant Fikes.

Educational software presents advanced mathematics to K-12 students in a game-oriented approach, using coloring and drawing techniques to illustrate concepts from graph theory and computer science.

Weekly math challenge with past problem archives and solutions.