Calcudoku puzzle forum - View topic - Killer Sudoku solving strategies
New to Killer Sudoku and excited to learn. Every now and then I have trouble getting going. Here's an example. What are some techniques I can use on difficult-to-start puzzles? : r/sudoku
The Basics of Killer Sudoku - by James Sinclair
Solved: Tips and tricks on how to beat every Killer Sudoku puzzle eBook : Charger, Michael: Amazon.in: Kindle Store
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Extreme difficulty (maybe unsolvable?) killer sudoku : r/sudoku
