Logic Masters Deutschland e.V.

This idea came from RockyRoer

Standard sudoku rules applies. Fill the grid with numbers from 1 to 9 so no repeated digit in every row, column and 3x3 box.

The digit outside is the mean of the first x digits in that direction where x is the first digit.

All integer clues are given.

Statistics review:

• The arithmetic mean is the 'average' of the numbers - add them up and divide by the number of numbers.
  • For 3, 4, 4, 9 the mean is 5.

  (yep, I just copy and paste it. It's clearer than what I might say)

This puzzle is made by Old Miles from China. I was going to post it, but um, the puzzles followed by the previous one is kind of breaky, or I’m not in the right solving mood, which is more possible. Thank god recent puzzles don’t have that interesting ruleset, so I just need to emp up my standard to save my time.

As for this puzzle, it’s just a rush of ideas. I’ve been doing a lot of puzzle sorting these days. I found every variant has a close kin, like killer and little killer, introducing repeated digits. So is there another pair of variants only has a repeated digit difference. Arrows, of course. Arrow with no repeated digits, that’s outside clues, or more specifically x-sum, which has a length. And that means every x-sum variant can be an arrow variant. This also opens a new gate. The outside clues and inside clues variant, if one is possible then the other side should also be possible.

Also, I’m been setting puzzles recently. The next series is not hard, because I use the old solution-begin tricks, it’s just hard to find one without multiple solution. Now here’s a question for you, would you like an insanely easy puzzle? I can grantee it’s not something you see everyday and it might boost a false confidence over the whole similar type, which would be really frustrating in the future. I just want to know if anyone would appreciate an easy puzzle from me without any story cover.

Anyway here’s the puzzle I found interesting between mine. The others, either I’ve seen those before or just not satisfy enough for me to recall.

straight sum arrow(manushand), the first one is easier to understand, the latter ones, do I have to describe those?

nonogram sum(panthchesh)I break it way too many times, I gave up.

hmmm(jneen)It’s been a long time since I see a rule showed like this. The last one I remember was around Christmas

cobra(Godrick)It’s a snake variant. Good luck finding one in recent puzzles.

Hidden black dot(jwsinclair)Good old hidden dot. Dejavu. I think black dot is more enjoyable than white.

Greater arrow(toadunloader)Familiar, right. And still, no solution code. Will he come back?

connon(PrimeWeasel)Minesweeper. Just saying, I’m still waiting for the circuit board idea to come back.

longest ascending subsequence(DVFrank)highly underrated puzzle. I don’t know why there’s only 2 solve. It’s really really weird. Especially compared with similar puzzle. Has new variant already loose it’s charm?

imaginary grid(kolot), some experience, once you get the rhythm, it’s really smooth.

not precise sum(ymhsbmbesitwf), killer variant, miss those days, and probably the easiest killer I’ve seen here.

circles between sum(zetamath), look at the grid, that’s clean.

knight tour region drawing(filuta), good old region drawing. Still I’m very not on board with the term, chaos construction. It sound really stupid in Chinese, very Cyunibyou. We just called it region drawing.

Also please leave a comment telling whether I should post an insanely easy puzzle or not.

comment 2022:i think around this time, i push myself too hard to solve puzzles. checking my prevoius comment is kind of funny.there's defintely something to improve in those puzzles, and i didn't mention any of it, which is probably i get scared when people notice my comment. probably the reason why i didn't do it afterwards. but i guess at that time, i feel all puzzles are boring, some attempt is better than none. still remember some people in China doubt I know how hard in his puzzle. it's actually simple, if i see it and know i not only think of it but also can do it, that puzzle fails. in the past, i probably only end at if i can think of it. now, it's a lot systemize than i expected. but thereš a high chance i'm the only one using the system. letš see if i'll change my hubris after a year.