Puzzles

The complete resource for free math puzzles. Start challenging yourself with this collection of challenging math puzzles. Chessboard, Greek Cross Puzzles, Magic Squares, Money Puzzles, Patchwork Puzzles, route problems and dissection puzzles.

Lots of free Sudoku puzzles in different degrees of difficulty. The puzzles can be played online, printed out and even exported as PDF-File.

The game of Soduko explained in detail with free puzzles and links.

How to play Sudoku. If you have never played Sudoku this site will give you a basic overview of how one can go about solving a Sudoku puzzle and some rudimentary Sudoku strategies. Free sudoku puzzle also available.

Forum community about online thinking games. Covers brain teasers, jigsaw and crossword puzzles, Supaplex, Klotski, Lemmings, and other critical thinking games