Irregular Killer Sudoku — Knight Features

The normal rules of Killer Sudoku apply, except, the usual 3x3 blocks have been replaced by irregularly shaped, coloured blocks (which must contain all the digits from 1-9).

Sudoku Odd-Even — Knight Features

Sudoku - Wikipedia

Sudoku, Logic Puzzle Wiki

How to Solve Anti-Knight Sudoku Puzzles

Logic Wiz Sudoku & Variations App Review 2022

Simon & Mark Solve Sudokus Live: Our 500k Special Puzzles Part 6

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

How to Solve Anti-Knight Sudoku Puzzles

Daily Killer Sudoku

Killer Sudoku Rules - How to play Killer Sudoku

Godoku - Killer Sudoku Solving Techniques and Tips

Killer Sudoku Rules - How to play Killer Sudoku

Logic Wiz Sudoku & Variations App Review 2022

Chat 06 January 2022 (Digital)

Logic Wiz - Logic Wiz: Phistomefel's Ring practice