Killer Sudoku

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This is a PDF ebook only, and a download link will be shared by email upon purchase.

To those that consider arithmetic to be a challenge, Killer Sudoku is an apt name for this variation on Sudoku that includes addition rules. From puzzlemaster Serkan Yürekli, this collection of 27 Killer Sudoku (including 4 past competition puzzles) contains a lot of brain-bending challenges with the hand-crafted artistry expected one of the world's best logic puzzle constructors. Can you crack all of these tough Killers?

(Originally published in December, 2020.)