Insane Killer Sudoku

Ok, a few regular readers have requested an INSANE Killer Sudoku puzzle so I had to respond. This puzzle should be very difficult to solve. In fact, it might require some trial&error attempts …

Star Sudoku 2017 Edition eBook by Ted Summerfield - EPUB Book

Insane Sudoku Puzzles, Book 41 - KrazyDad

500 Insane Sudoku Puzzles Book: Sudoku Puzzle Books for Adults with 500 Unique Puzzles (Paperback)

Killer Sudoku online - Solve daily killer sudoku puzzles

Killer Sudoku Puzzle, Volume 1 eBook by YobiTech Consulting - EPUB Book

Killer Sudoku for Experts Book 4 by Robert Macmillan

Killer Sudoku with all operators in TwoDoku format

Insane Killer Sudoku

Krazydad Psycho Killer Sudoku Volume 1: 360 Tough to Insane Puzzles (Large Print / Paperback)