PLAY GUIDES
One Sudoku offers a variety of puzzle types. In this guide you will learn how to solve all these Sudokus.
Classic
Classic Sudokus with evenly shaped boxes available in different sizes.
Chaos
A playing field with oddly shaped boxes and other mean things.
Stair Steps
The boxes have a stair-step shape. This provides an interesting challenge.
Kendoku
In this variant, the result and the operator of an arithmetic problem are given as solution aids.
Window
Additional windows with the same rules as regular boxes to help solve the Sudoku.
Jigsaw
The boxes of these Sudokus feature geometrical patterns.
Kropki
To help solve this variant, there are markings between the cells that symbolise their relationship.
Comparsion
Instead of given numbers, a cell is marked to be greater or less than the neighbouring cells.
Killer
Instead of given numbers, only the sum for a random group of cells is shown.
X-Sudoku
Two diagonals on the playing field will help you solve these Sudokus.
Even & Odd
Some marked cells only allow even or odd numbers.
One Sudoku. A Sudoku App for your iPhone, iPad, and Mac.
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