Sudoku Fundamentals

## Description

There are four puzzle library levels corresponding to the four levels of strategies described in the Fundamentals. Within each level, "stars" are used to indicate difficulty.

Puzzles can also be imported or created.
In all cases, a Grader optionally displays abbreviations beneath the puzzle indicating the strategies needed to solve that puzzle, along with other statistics

A toolkit of visual aids is available at each of the four levels, ranging from none at the Basic level to several at the Extreme level.

If you don't like looking at puzzles where all empty cells are filled with possible solutions, then pick Newspaper Mode. In this mode, puzzles given to you are the ones best suited for this solution mode. You will find that the visual aids provided make even higher level puzzles very solvable in this mode.

The Grader Statistics give you a good idea of whether you are going to like solving a puzzle or not.

You can create a puzzle having a particular library and star level. Several puzzles are created and graded each second. The Grader statistics are displayed for what is considered to be the best of a batch for your selection, and you can be looking at them while the next batch is being created.

A protected area can be specified which Create avoids, producing a puzzle having a specific pattern. You can do this when creating a puzzle for a specific target level, but the "no target" option is more likely to be successful for restrictive patterns.