Puzzle

Sudoku Touch offers billions free sudoku puzzles online. It has a no keyboard feature that you do not need a keyboard to play the game. Such feature is particularlly good for touch screen devices as no pop-up on screen keyboard will distract you while playing.

Play numerous free Sudoku puzzles online at 5 skill levels. The playing grid features mouse only, pencil marking and coloring options. Also provides free printable version of Sudoku puzzles, solver, blank grid and a tutorial of solving techniques.

Offers a new brain teaser each Thursday, plus archive of past puzzles.

Online puzzle game in which the player must form lines of five or more color marbles to score points and enter the top 20 players list.

Java game in which the player tries to score points by filling up 3 by 3 squares on a grid using tetris style pieces.

Determine the shape that doesn't fit in this series of ten visual logic puzzles.

Find contests and quizzes to play as well as create yourself.

Arrange the chain links in alphabetical order to solve this Java puzzle.

Rearrange rows, columns, and quadrants in a 4x4 array of 2color squares to solve the puzzle and to make a variety of symmetric designs.

Remove all of the black squares by toggling colors with each click.