Dodoku Christmas Medium: 50 Base-12 Sudoku Puzzles (Printable PDF)

A printable Christmas puzzle book you can start tonight.

Dodoku is base-12 sudoku. Instead of nine digits you work with twelve (0 through 9, plus X for ten and E for eleven) on a 12x12 grid. This Medium Christmas Edition is for solvers who have the basics down: 50 puzzles that ask for real logical reasoning without tipping into guesswork.

What you get

• One PDF, 79 pages, ready to download as soon as you check out
• 50 unique-solution 12x12 puzzles, Medium level
• A short guide to dozenal counting, plus how-to-play instructions
• A complete answer key for every puzzle

Printing

• Pages are 5.5 x 8.5 inches. Print two to a sheet of letter paper at full size, or one to a sheet with "Fit to page" for larger grids.
• Print only the puzzles you want, as often as you like, for personal use.
• Or solve on a tablet with any PDF app that lets you write on the page.

Good for

• The slow days between Christmas and New Year
• Holiday travel, or waiting for everyone to wake up
• Anyone ready to level up from standard 9x9 sudoku

New to Dodoku? The Beginner edition is the gentler place to start.