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Evaluate Sudoku Puzzle Difficulty - How easy or hard is it?

A sudoku puzzle can be very easy, extremely hard, or somewhere in between, depending on the techniques required to solve it. This page estimates the difficulty level of a given puzzle based on the difficulty of the strategies that must be used to solve it. Enter a puzzle string below (see the main sudoku page and look above the puzzle for an example) and click Grade Puzzle to find out the estimated difficulty level.

Sudoku Difficulty Estimator

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Estimated Difficulty Level: Very Easy (Difficulty Score: 1 out of 6)

Enter a sudoku string (see example):

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