SuDoku has been a craze since 2005 and nearly each newspaper is publishing daily SuDoku puzzles. But a large number of people, though interested, have not yet solved their first SuDoku... reason being no guidance received.
The SuDoku Solvers available on net are mostly based on backtracking method which a human being is not capable of following, and the steps taken for solution are not shown by such solvers.

SuDoku Tutor 3i is software that runs on Internet Explorer 5 and above and is capable of showing step by step solution of a user-given SuDoku Puzzle. This software also supports Jigsaw SuDoku puzzles.

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