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The normal rules of Killer Sudoku apply, except, the usual 3x3 blocks have been replaced by irregularly shaped, coloured blocks (which must contain all the digits from 1-9).

Irregular Killer Sudoku — Knight Features

Godoku - Killer Sudoku Solving Techniques and Tips

Sudoku and Variants 2023: 366 mixed sudoku including sandwich sudoku, arrow sudoku, thermo sudoku and many more! by Media, Clarity

Sudoku Variants

Jigsaw Sudoku – Apps on Google Play

Killer Sudoku Tips and Strategies

Logic Wiz Sudoku free App - Classic, Jigsaw, Killer, Arrow, Kropki, Thermo, Chess Sudoku and many more variations. A celebration for the mind and logic

Groza A. Modelling Puzzles in First Order Logic 2021, PDF

Killer Sudoku Rules - How to play Killer Sudoku

What's on TV 08.12.23 by muskogeephoenix - Issuu

Corresponding to case 2 shading: (a) TCT shading pattern, (b) shading