====== If you cannot solve sudokus, this calculator will help you. It also can help you, if you create your own sudokus.
- Find "single" - The only value possible.
- Find "hidden single" - One of the possible values is in this cell only.
- "Open pair" - Two cells with identical pair. The values can be removed from the other cells in the group.
- "Candidate lines" - If you look within a box, and find that all of the places where you can put a particular number lie along a single line, then you can be sure that wherever you put the number in that box, it has to be on the line.
- 5x3x3 - Samurai
You can make your own fields and add them into app.js.
Demo here: http://pico.zz.mu/sudoku/index.html