D. J. APE Books

Hidoku: The Next Puzzle Craze - 150 Puzzles
Hidoku: The Next Puzzle Craze - 150 Puzzles

By D. J. APE, Dj Ape

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Hidoku is not Sudoku. It's a brand new puzzle game, played on a square or rectangle of any size. Your goal is to fill in the missing numbers from 1 to the maximum number (which is circled)...

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Jigsaw Sudoku Vol 2: 160 Very Twisted Puzzles
Jigsaw Sudoku Vol 2: 160 Very Twisted Puzzles

By D. J. APE, DJ Ape

Average: 0.00, 0 Ratings

This book contains 160 brand NEW, previously UNPUBLISHED Jigsaw Sudoku puzzles.Jigsaw (or irregularly shaped) Sudoku puzzles share the same rules with classic Sudoku. The only difference is that th...

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What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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