Colour Killer X Sudoku — Knight Features

The normal rules of Killer Sudoku apply. In addition, both main diagonals (marked) and all cells of the same colour must also contain all the digits from 1-9.

Sudoku - Wikipedia

Chess Sudoku on the App Store

X-Factor Killer Sudoku — Knight Features

Xbox Downloads, Auto Installer Deluxe, Softmods, Dashboards, Tutorials, Roms, Bios and Forums on

Sudoku - Free Classic Sudoku Puzzles Game Group

Chess Sudoku - Apps on Google Play

How to Solve Anti-Knight Sudoku Puzzles

Extra Region Killer Sudoku — Knight Features

Killer Sudoku Rules - How to play Killer Sudoku

Pin on letras

Killer sudoku - Wikipedia

X-Factor Killer Sudoku — Knight Features

Sudoku - Wikipedia