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 ..3......4......2..8.12...6.........2...6...7...8.7.31.1.64.9..6.5..8...9.83...4.

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

Enter a sudoku string (see example):