There's still time! Find the perfect Father's Day gift with store pickup | Shop NowThere's still time! Find the perfect Father's Day gift with store pickup | Shop Now
Add Item to wish listAdd Item to wish list

Diagonal Sudoku Compendium: 160 puzzles with an X

By Djape
Paperback
$11.99
By Djape
Promotion message icon
Premium Members save an extra 10% and all Members collect stamps to save with Rewards. 10 stamps = $5.Learn More
Formats
In stock
This item is currently out of stock online.
Free standard shipping on orders over $60
Select a store to view item availability.
The Power of the X: 160 Diagonal Sudoku Challenges

A comprehensive collection of Diagonal Sudoku puzzles. Also known as Sudoku X, this format adds one critical rule to the standard game: both main diagonals running corner-to-corner must contain the digits 1 through 9.

In the harder grids, this diagonal constraint is absolutely mandatory to break the logic lock. The introduction teaches you how to leverage this constraint to spot powerful new patterns. Verified unique solutions.

Categories

Activity & Game BooksSudokuSudoku puzzles->Variations