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How to produce 10x10 magic squares?
You can produce 10x10 magic squares by using the Medjig method, the method to produce bordered
squares, or the method of Strachey.
On this webpage I present the improved method of Strachey and the Medjig method without puzzling
(= LUX method) to produce a magic 10x10 square.
Improved method of Strachey
A 10x10 magic square produced with the ordinary method of Strachey consists of a 2x2 carpet of a
magic 5x5 square. You need to swap a lot of digits to get a correct magic square. A 10x10 magic
square produced with the improved method of Strachey consists of 4 panmagic 5x5 squares. The
5x5 squares are more proportional and you need to swap less digits to get a correct magic square.
Produce 4 panmagic 5x5 squares by using method 3 on page 3x extra magic 15x15 square. Take as
row coordinates each time the digits 0 up to 4 and take as column coordinates the digits 0 up to
(5 x 4 -/- 1 = ) 19.
5x column coordinate + 1x row coordinate + 1 = panmagic 5x5 square
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Put the 4 panmagic 5x5 squares together.
magic 10x10 square to be corrected
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Swap the 2x five (not-diagonal) digits, to get a correct 10x10 magic square.
10x10 magic square
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This method can be also used to produce a magic 14x14 square (consisting of 4 as proportional as
possible panmagic 7x7 squares).
Medjig method without puzzling (= LUX method)
You can use the Medjig method without puzzling, better known as the LUX method. The three cha-
racters concern three different Medjig tiles. If you draw straight lines between the digits 1, 2, 3 [and 4]
on the tiles, you get the characters L (see red marked), U (see yellow marked) and X (see blue marked).
Take a digit from the LUX grid and add 4x [digit minus 1] from the same cell of the second grid with the
2x2 'blown up' 5x5 magic square.
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1x digit from grid with Medjig tiles LUX
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+4x [digit minus 1] from grid with 2x2 'blown up' 5x5 magic square
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= 10x10 magic square
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