Killer Sudoku Combinations: The Complete Cage Guide
Plus Killer sudoku combinations are the sets of unique digits (1–9, never repeating inside a cage) that add up to a cage's printed sum. Learn them and every puzzle gets faster:…
cage combinations
Killer Sudoku Cheat Sheet: Cage Combinations and the 45 Rule
A Killer Sudoku cheat sheet is a reference of every valid digit combination for each cage size and sum. Because no digit may repeat inside a cage, the number of…