Hole-Free Magic 45-Ominoes

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

It is possible to construct connected configurations of cells (i.e. polyominoes) in a 9×9 square where each row, column, and main diagonal contains five cells within the configuration and each 3×3 block contains a number of squares corresponding to a number in the magic square containing all the digits between 1 and 9. Only 12 of the solutions to this problem are free of holes, where a hole is a set of cells outside the polyomino disconnected from the outside of the 9×9 square.

Contributed by: Alexandre Muñiz (March 2011)
Open content licensed under CC BY-NC-SA


Snapshots


Details

detailSectionParagraph


Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.
Send