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

You submitted 7.6...5.3...7...8..2.85...91.59........6.....4....193.8.......6.7.3..8.2....2....

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

Enter a sudoku string (see example):