Logic Masters Deutschland e.V.

am 11. März 2026, 18:13 Uhr von Anthony
I didn't understand what the 3x3 window sums meant at first, but reading other comments helped me figure it out. After that it became pretty easy, although I think I'd say figuring out the trick is probably 2 stars difficulty.

am 10. März 2026, 18:48 Uhr von SanFranSam
I understood what the 3x3 boxes were. I knew what i needed to achieve in terms of the cells that needed to add up right to make the increasing order work. but it took some trial and error to get there. Took about 15 minutes. But then there are some 1* i can't solve.

am 10. März 2026, 12:10 Uhr von Rab3aron
Clarification:
The sum of the 3x3 box that starts at r1c1 < the sum of the 3x3 box that starts at r1c2 < the sum of the 3x3 box that starts at r2c1 < the sum of the 3x3 box that starts at r2c2

am 10. März 2026, 11:35 Uhr von AlSina
I believe this part of the rule, “The four 3×3 window sums increase in reading order,” needs clarification. The sum of 1, 2, 3 and 4 in any other arrangement is always 10. It’s confusing how we can differentiate these sums.

am 10. März 2026, 07:26 Uhr von JVA
You should probably clarify in the rules what the 3x3 windows are

am 9. März 2026, 23:35 Uhr von Rab3aron
It means that The first 3x3 box (starts at r1c1) has the smallest sum, then the second 3x3 box (starts at r1c2) has the second smallest sum, and so on..

am 9. März 2026, 21:29 Uhr von Plok
I don't understand this rule:
"The four 3×3 window sums increase in reading order". Can you give an example. What sum? Reading order in the box or over the boxes?

am 9. März 2026, 20:12 Uhr von frollark
Good one!

am 9. März 2026, 15:11 Uhr von Vionix
Very fun snack

am 9. März 2026, 14:07 Uhr von sfield
Took a little time to figure out the trick. Then obviously it went fast because it's so small. But the trick was very satisfying to find and a really nice little mathematical idea.