Numerical Brain Teasers by Erica Sadun

Author:Erica Sadun
Language: eng
Format: epub
Tags: Pragmatic Bookshelf
Publisher: Pragmatic Bookshelf

Write a number into each space. Each number is that cell’s group size. For example, the number 3 means that three cells connect together along flat edges to form a group. Diagonals don’t count when building groups.

Groups of the same size must never touch along flat edges. If a 2 group touches another 2 group that way, it becomes a 4 group.

As you fill out the puzzle, it may help to outline each group with lines. This helps you see each group better.

For more information about this puzzle and its solution, turn the page. When you’re ready for more puzzles like this one, see ​Having Fun with More Puzzles​.

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