There are magic, antimagic, multimagic or satanic, and even alphamagic squares. There are also squares within squares, squares made by prime numbers and square made up by pandigital numbers like that achieved by Rodolfo Kurchan
The latter is unique, being made by Pandigital numbers, if you count the number of occurrences of each digit, we see that obviously is the same for all, that is, around the square there are exactly sixteen zeros, sixteen ones, etc. .
Based on this square I started to look for magic squares of order three in which all digits appear the same number of times.
So I found these magic squares:
a) Magic square in that each digit appears twice
109 32 87
54 76 98
65 120 43
b) Magic squares in which each digit appears exactly three times
Also in this squares each column and row each digit appears only once
1645 203 987
287 945 1603
903 1687 245
1542 306 978
378 942 1506
906 1578 342
1560 342 978
378 960 1542
942 1578 360
1560 348 972
372 960 1548
948 1572 360
1572 360 984
384 972 1560
960 1584 372
The last magic square that I've found is the only one such in each column and row are digits that appears twice, but is the only one that in one diagonal each digit appears only once.
1329 276 996
534 867 1200
738 1458 405
c) Magic squares in which each digit appears exactly four times
22950 204 18156
8976 13770 18564
9384 27336 4590
14399 2244 10285
4862 8976 13090
7667 15708 3553
Numbers and math
martes, 4 de mayo de 2021
martes, 27 de abril de 2021
Search: author:meller
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miércoles, 21 de abril de 2021
sábado, 29 de junio de 2019
Almost Square, Magics
The other day I was trying to solve a magic square, by hand, when suddenly I was wrong and I had to cross out a cell of the square, keeping a drawing like the following:
Upon seeing this drawing, I forgot the original problem and began to think if it was possible to fill the remaining cells with non-repeated numbers in such a way that the sum of the rows, columns and diagonals give the same sum, that is, form an almost square that be magical
After trying and trying I came to a solution.
And as always happens, one wants more, then I changed the black square of position and returned to look for a solution.
Once found the solutions, I thought if I could find solutions for 3 x 3 squares.
Here are the solutions found:
For 3x3 :
We see that only the middle one has all positive numbers
The magic sums of this almost square, magic are 9, 21 and 0 respectively.
For 4x4
In this case, all values are positive numbers.
and the magic sums are 56, 65 and 83 respectively
Some questions that came up:
a) For the 3x3 almost square, can you obtain almost squares with all positive numbers for all the models?
b) What is the smallest possible magic sum (using only positive numbers), for each model of almost square, 3x3 and 4x4?
martes, 21 de agosto de 2018
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