|Notes on Magic Squares and Cubes
|by Walter Trump
There are more magic squares of order 10 than elementary particles in our universe and in trillions of other universes (if they exist).
Number of magic squares
NEW 2023-07-18: Hidetoshi Mino calculated the number of magic 6x6-squares.
The results of historical and computer enumeration of magic squares
Trimagic 12x12-squares are known since 2002-06-08.
Trimagic Squares of order 12
Here some new squares with special properties are presented.
For example: a trimagic square for the 60th anniversary of LEGO.
Graphic interpretation of magic squares
Area Magic Squares
Each area size is equal to the associated entry of the magic square.
Area magic squares were first suggested by William Walkington in December 2016.
Bimagic squares are still magic when all entries are squared.
All bimagic squares of order 8
There are exactly 192·136,244 = 26,158,848 bimagic 8x8-squares.
Ultramagic squares are both pandiagonal and centrally symmetrical.
Ultramagic squares of order 7
Properties, transformations and beautiful examples of these squares.
Read how to determine all 20,190,684 different squares.
2 + 8 + 9 + 15 is a magic (trimagic) series of order 4.
For orders m≥1000 the amount of series is very huge. Nevertheless exact enumerations could be done.
Read all about these building blocks of magic objects.
How many magic squares of higher orders are there?
Estimates of the number of magic squares (cubes, hypercubes)
Magic series and probability considerations enable us to estimate the numbers of magic objects.
How many magic lines can a magic cube of small order possess?
Perfect magic cubes
The successful search for the smallest perfect magic cube in 2003.
Strategy and source code of a special approximation
Number of classical magic order-6 squares
Learn about the Monte Carlo backtracking algorithm.
Links to great sites about magic squares and cubes
Each of these sites covers the subject very completely and contains many further links.