Ludo Magic
(Eingestellt am 21. August 2025, 09:57 Uhr von ivaylagergova)
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Lösungscode: Enter the digits in Row 9 from left to right without spaces.
Kommentare
am 21. August 2025, 20:17 Uhr von ivaylagergova
Thanks a lot for your observations! :)
You are right that in the classical definition, a 3×3 magic square uses each number 1–9 exactly once. In my description, however, I was referring to the broader idea: every row, column, and both main diagonals add up to the same sum.
For example:
1 3 2
3 2 1
2 1 3
is a valid magic square, though not a classical one.
In this puzzle, my intention was for solvers to notice that the colored boxes actually form normal 3×3 magic squares, since 6 of their digits are in the same Sudoku box and therefore distinct.
Bonus points if you spotted the hidden 5th magic square in the grid!
am 21. August 2025, 15:56 Uhr von DiMono
A magic square does not repeat a number to arrive at its sums. You need to specify that here.
am 21. August 2025, 15:48 Uhr von PinkNickels
I am sure your students very much enjoy your class(es)!. Greetings from the USA. As one other person pointed out, you should indeed mention no repeated digits in each square. I just assumed that was the case. Regardless, very fun solve. Thanks for sharing.
