Category: Tutorials

Sudoku Marathon is a sudoku variation with four overlapping sudoku grids. Sometimes also called gattai-4. Here's an example: Sudoku Marathon Example Understanding Sudoku Marathon In this article we'll help you...

Sudoku Gattai is a sudoku variation with three overlapping sudoku grids. Here's an example: Sudoku Gattai Example Note: In Japanese, Gattai is a generic name for different types of overlapping...

Sudoku Flower is a sudoku variation with four overlapping sudoku grids. Here's an example: Sudoku Flower Example Understanding Sudoku Flower In this article we'll help you mastering sudoku flower puzzles....

Sudoku Cross is a lesser known sudoku variation with five (!) overlapping sudoku grids: Sudokus with overlapping grids may be confusing at first. Once you understand how they are constructed,...

Sudoku Sensei is a sudoku variation with two overlapping sudoku grids. In this article we'll show you the basic Sudoku Sensei solving methods. We assume you understand the beginner sudoku...