Logic Masters Deutschland e.V.

Stay Cool!

(Eingestellt am 28. Juli 2026, 04:00 Uhr von The Pi Guy)

A puzzle set during my first time taking part in a speed setting competition. The theme was ‘3D’, so naturally I came up with an ice cube! ;) Enjoy!


Sudoku: Put the digits 1 to 9 once each into every row, column & 3 by 3 box.

Region sum lines: Each blue line (normal) is split into sections by the 3 by 3 boxes. The sections on each individual line must have the same sum.

Ten lines: Each grey line (hollow) must either contain digits adding to 10 or divide into sections that contain digits adding to 10.

Puzzle link (SudokuPad)

Lösungscode: The digits in the 3 by 3 area with centre row 7 column 4, read left to right.

Zuletzt geändert am 28. Juli 2026, 04:14 Uhr

Gelöst von Onyoubi, SincereEngineer, lina_hyena, Bjd, jacksongriggs, Reisen, wuc, StazStazStaz, Krisonium, baltoguy, SKORP17, palpot, idanz, ofsmul, gdc, anotherpaulistring, Nagesh, teuthida, ... Don_Huan, Crul, uhu170, pmatos, BorisTheSnake, arauwer, Myreque, blackjackfitz, mezkur7, achim-t, pepe74287, pazqo, M8tyw31, sarabtx, Tompzini, doodManBro, Dr Logic, Megalobrainiac, abadx
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Kommentare

am 1. August 2026, 19:39 Uhr von Dr Logic
cool interactions, well set :)

am 30. Juli 2026, 19:29 Uhr von The Pi Guy
Wow, I definitely wasn’t expecting anyone to have an issue with the solution code! I thought it was a simple but fun twist. Glad you liked the rest though.

am 30. Juli 2026, 03:44 Uhr von blackjackfitz
Huzzah! I actually quite liked the ending and thought the way the 10 lines interacted with region sum lines was quite good.

My only gripe is the solution code, I don't think you need to do that. Just one row or column is fine, thanks.

Zuletzt geändert am 29. Juli 2026, 15:28 Uhr

am 29. Juli 2026, 15:04 Uhr von highonlife
Im not sure if there was a correct way of doing the ending. I basically had to bifurcate to find the last 7-8 digits.

Edit: The Pi Guy here. Nope no bifurcating involved. The last step was intended and isn’t really difficult, you just have to have the right thought (I’d highly recommend going back to that point and seeing if you can spot it).

Zuletzt geändert am 28. Juli 2026, 18:35 Uhr

am 28. Juli 2026, 18:34 Uhr von The Pi Guy
Well, that’s one way of describing it. : P

am 28. Juli 2026, 16:28 Uhr von baltoguy
Nice flow.
Thought I was almost done, then I wasn't.

am 28. Juli 2026, 14:25 Uhr von The Pi Guy
:)

am 28. Juli 2026, 12:38 Uhr von wuc
Great break in. Tricky steps near end. Great fun thx.

am 28. Juli 2026, 12:01 Uhr von Reisen
It's really an interesting ad smooth one!

am 28. Juli 2026, 04:14 Uhr von The Pi Guy
Spacing (ok, now it should work, sorry about that!)

am 28. Juli 2026, 04:11 Uhr von The Pi Guy
Spacing (3rd attempt - hopefully it works this time!)

am 28. Juli 2026, 04:10 Uhr von The Pi Guy
Spacing (2nd attempt)

am 28. Juli 2026, 04:08 Uhr von The Pi Guy
Spaced things out a bit

am 28. Juli 2026, 04:07 Uhr von The Pi Guy
Added a bit of background to the puzzle.

Schwierigkeit:2
Bewertung:92 %
Gelöst:51 mal
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ID:000U2S

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