Problem 50897. Draw a '9' in a zero matrix!

• Created by Szász Botond
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By solving this problem, you will make progress in the following group(s)

Matrix Manipulation III

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• 25 Finishers

Tough Stuff

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• 7 Finishers

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Given a x-by-x matrix filled with zeros (x is odd and > 3). Use 9s to draw a number 9 into it! Like this:

x = 5, y =

9 9 9 9 9

9 0 0 0 9

9 9 9 9 9

0 0 0 0 9

9 9 9 9 9

x = 7, y =

9 9 9 9 9 9 9

9 0 0 0 0 0 9

9 0 0 0 0 0 9

9 9 9 9 9 9 9

0 0 0 0 0 0 9

0 0 0 0 0 0 9

9 9 9 9 9 9 9

Solve

Solution Stats

73.5% Correct | 26.5% Incorrect

• 683 Solutions
• 493 Solvers

Last Solution submitted on May 10, 2025

Last 200 Solutions

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Problem Recent Solvers493

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