Number CRAZY

The Best Free Web Sudoku Puzzles Online

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About the best online sudoku puzzle game

Numbercrazy was built to satisfy a growing demand for Sudoku, a fun logic puzzle that is highly popular in the world.

Initially built as an exercise in Javascript in Apr. 2006, the current incarnation is a fully featured client game available in the latest generation browsers.

This site is built using YUI libraries and CSS/Javascript. With a keen interest in keeping the interface simple yet usable, we believe we are one of the best web based sudoku sites available.