magic square

noun
1.
a square containing integers arranged in an equal number of rows and columns so that the sum of the integers in any row, column, or diagonal is the same.
Origin of magic square
1695-1705
1695-1705
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for magic square
Historical Examples
• The magic circle is a modification of the magic square, one form of which was devised by Franklin.

Benjamin Franklin
• An infinite variety of puzzles may be made introducing new conditions into the magic square.

Henry Ernest Dudeney
• But, finally, he was brought to reason, and immediately on the display of the magic square the Boers ceased fire.

Louis Creswicke
• Make a magic square with nine consecutive composite numbers—the smallest possible.

Henry Ernest Dudeney
• I believe such a magic square cannot be constructed in the case of any order lower than 8.

Henry Ernest Dudeney
• There are eight ways of forming the magic square—all merely different aspects of one fundamental arrangement.

Henry Ernest Dudeney
• Our puzzle, therefore, resolves itself into forming a magic square with nine different prime numbers.

Henry Ernest Dudeney
• In Diagram A we have a magic square in prime numbers, and it is the one giving the smallest constant sum that is possible.

Henry Ernest Dudeney
• Taking up the magic square I asked Betty to repeat the formula for uncoding.

Van Tassel Sutphen
British Dictionary definitions for magic square

magic square

noun
1.
a square array of rows of integers arranged so that the sum of the integers is the same when taken vertically, horizontally, or diagonally
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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magic square in Science
 magic square   A square that contains numbers arranged in equal rows and columns such that the sum of each row, column, and sometimes diagonal is the same.
The American Heritage® Science Dictionary
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Difficulty index for magic square

Few English speakers likely know this word

Word Value for magic

10
13
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