Colour Killer Sudoku — Knight Features

The normal rules of Killer Sudoku apply. In addition, the grid is divided into coloured cells. Cells of the same colour must also contain all the digits from 1-9.

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Colour Killer Sudoku — Knight Features

Killer Sudoku Rules - How to play Killer Sudoku

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What is Killer Sudoku? How to Play Killer Sudoku - Mastering Sudoku

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Killer Sudoku — Knight Features

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Puzzle Maker Pro - More Clues Add-On for Sudoku Other Grid Sizes

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