Liste der neuen Beiträge vom 12. Dezember 2013
- NEW RECORD! New smallest known
order of magic square
of 7th powers
- 144x144 magic square of
7th powers by Toshihiro Shirakawa, with magic sum 3141592653589793238462643383279502884197169399375105.
Yes, amazing, all the digits of
its magic sum are exactly the 52 first digits of
!!!
- Look also at the updated
table of smallest known squares of powers
- New biographical info
- We didn't have any info on the inventors of two families of magic
squares having surprising characterics never seen before. They were full
mysteries, we only knew their names, but now:
- Supplemented biography of Andrew H. Frost
(in English), with new
photos of
Firth's 6x6x6 magic cube dedicated to Frost, photos by John Williamson
- New best known multiplicative
magic cubes
- Es verbleiben noch
zehn Rätsel mit Preisen von insgesamt 6.900 € und
zehn Flaschen Champagner!
Hier sind die interessantesten Ergebnisse
zu diesen Rätseln, die aber trotzdem ungelöst bleiben:
- #1 (3x3 magisches Quadrat mindestens 7 paarweise verschiedenen Quadratzahlen), another astonishing remark
from Tim S. Roberts
- #2 (5x5 bimagisches Quadrat), above discovery of who Pfeffermann
was,
the inventor of this kind of square (8x8 and 9x9)... BUT this
much smaller square is still unknown...
- #4b (6x6 magisches Quadrat aus Kubikzahlen), no
solution with magic sum < 1843900, by Toshihiro Shirakawa
- #4c (7x7 magisches Quadrat aus Kubikzahlen), no
solution with magic sum < 490000, and other interesting results, by Toshihiro Shirakawa,
and by Dmitry Kamenetsky
- #6, #6a, #6b (5x5, 6x6, 7x7 add-mult magisches Quadrat), above discovery of who
Horner was, the inventor of this kind of square (8x8 and 9x9)... BUT these smaller squares are still unknown...
- New studies on old
construction methods of 8x8 bimagic squares
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