Logic Masters Deutschland e.V.

Quadnity

(Eingestellt am 12. November 2021, 06:41 Uhr von bigger)

Standard sudoku rules applies. Fill in each of the 4 grid with numbers from 1 to 4 so each digit occurs exactly once in every row, column and 2x2 box.

Clues shows the sum between 1.

Clues shows the difference between the first x digits on each side, where x is the first digit the clue sees on one side. The clue can see two different x.

Clues shows the sum of the x-th digit on each side, where x is the first digit the clue sees on one side. The clue can see two different x.

These ones should be easy. Also, join wspc. There’re some Chinese setters who set puzzles for this convention. I see a lot of dejavu CSOC puzzles.

I actually notice people only rate shorter length puzzles. Well, I just have to make sure my puzzle is long enough. The first puzzle was originally made for 11.11, which is singles day in China, which is just a discount day in disguise. So I want to make something special with 1 or 11. Now comes a very big problem. I don’t want to make a landmark kind of puzzle, I mean hand craft a fix position clues of given digits is hard. I need a rule with 1. However, it seems every rule that surround 1 has been done. Before or after 1 sum or skyscraper, no knight or bishop, no single, sum of the neighbor. Notice one thing, these rules are kind of stale, I need something else, something different. Then I think of the first puzzle I post, what if 1 connects two puzzles. Then I thought, the 1 in each puzzle is only use once, just not enough to secure the one solution rule. Well, 4X4 it is. Here comes the idea of sum between 1. however Old Miles said he can’t make one, I guess I’ll have to do it myself.

Then I found I just can’t grantee double 11 clues on each side. It’s theoretically impossible. You can try to prove me wrong. But I still don’t know if double any clue on each side is possible. Theory for some other day. I need to find some other rule that can make a double 11 on each side. 1-4 to make 11 has to be a sum. Product too few combo. My best shot is x sum. But 11 is kind of in the middle of 2-20, which is bad. The middle sum is always bad. I thought if I’m creating a hell for myself, why not make it even harder. Make it difference. I might show you how I know on my next puzzle or the one after.

Then some guy say they are confused whether it’s difference between x sum or x-th. Fine, I’ll make one for the sake of variety. To be honest, I hate the x-th, it’s so much harder than x sum. I can number every trick I can use. And guess what, the trick I found for the difference of the x-th is none. It’s only 0-3, and it can have a row of 3 or 0. it’s 4X4 hell. Well I guess it just have to be a sum. Why can’t I just have some normal ideas.

Comment October: oh yeah, this is the pre-PS era. i used a lot of salvage empty grid. this does leads to interesting conclusion. i was suppose to made the clues at the top and left of the whole grid. but after i use a 9X9 grid, i found maybe the clues in the gap is more fitting and intuitive. this also lead up to the cube construction. i guess limit tools can also be helpful. as an old Chinese saying goes(or somebody), one will not hold back his pee until he's dead, one will more likely to pee in a creative way.

Lösungscode: row 5 of each puzzle(24 digits)

Zuletzt geändert am 16. Oktober 2022, 13:29 Uhr

Gelöst von marcmees
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am 27. November 2021, 23:00 Uhr von uvo_mod
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