Killer Sudoku Solving Methods

Strategy tips for solving killer sudoku puzzles from Puzzle Magazines: the rule of 45 and more rules discussed to help solve this puzzle

Intermediate Sudoku Solving Techniques – Part 2: Three Rows at a Time

Killer Sudoku Tips and Strategies

How to solve Killer Sudoku puzzles

Killer Sudoku - Sudopedia

Duncan's Killer SuDoku Solver

What is the 45 Rule in Sudoku? - Mastering Sudoku

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Killer Sudoku Tips and Strategies

Intermediate Sudoku Solving Techniques – Part 4: More Multi-Direction Solutions

Killer Solving Guide

Killer Sudoku Tips and Strategies