Logic Masters Deutschland e.V.

One one, four one, one to four

(Published on 30. April 2025, 11:07 by alhobj)

Note: This puzzle has four solutions, you need to select a starting digit to solve it

Selection: Choose either R1C1 or R4C1. Place 1, 2, 3 or 4 in that cell.

Normal 4x4 sudoku rules apply: Each row, column and 2x2 box must contain the digits 1 to 4.

Black kropki dots: Digits separated by a black kropki dot have a 1:2 ratio (ie one is double the other).

White kropki dots: Digits separated by a white kropki dot are consecutive.

Skyscrapers: Digits outside the grid indicate the number of digits “seen” from that vantage point with the higher numbers blocking lower numbers.

CTC Link: Click the image above.

Difficulty selection:

Select R1C1 and fill it with 1 or 2 for a very very easy puzzle.

Select R1C1 and fill it with 3 or 4 for a very easy puzzle.

Select R4C1 and fill it with 2, 3 or 4 for a very easy puzzle

Select R4C1 and fill it with 1 for an easy puzzle.

Or see if you can solve it all eight different ways. Enjoy!

Solution code: The sum of the digits in the first row

Last changed on on 30. April 2025, 15:20

Solved by maglia, xrrx, RockyRoer, rcg, MattYDdraig, Hajuhn, Merovius, tiuhto, Tarbs, marcmees, SeptaCube, raaaaa, Leaving Leaves, sandcu225, maoming4396, ludvigr04, Adaki, chameleon, DiMono, Garizon, micjo, ... Jett, bittchill, dielilla, Eraelan_2, Saskia11, firespire, Enterprize1, Onyx, digital_lighting, SigmaArf, Baconator, cornuto, 3ColorTheorem, r0the, Kekes, hirassy, bloodhovnds, mattnburris
Full list

Comments

on 9. January 2026, 18:10 by drinfernus
sum of digits is not the best idea for code, because it will be always ten :D

on 24. May 2025, 07:35 by PhoenixAki
Rated low due to the absolute joke of a solution code that literally requires no solving effort to do

on 23. May 2025, 23:57 by Incurrsion
Fix the solution code so you have to actually solve it and you’ll have a higher rated puzzle.

Last changed on 5. May 2025, 10:18

on 2. May 2025, 05:42 by mellowrobinson
Rating should be higher. It's a good set of snacks I enjoyed them all

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Thank you!

on 1. May 2025, 22:13 by Rollo
Nette Idee, aber der trotzige Lösungscode ist doof.

Last changed on 30. April 2025, 22:28

on 30. April 2025, 19:15 by Fisherman
Dear Alhoby, You have my vote for any office you decide to run for. The trusting shall inherit the Galaxy.

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Haha! Right now I am apparently running for worst sudoku on LMD. Do I have your vote?

on 30. April 2025, 15:20 by alhobj
Spelling mistake fixed

on 30. April 2025, 13:08 by alhobj
Updated the link to fix a mistake in the text in sudokupad

Last changed on 30. April 2025, 13:12

on 30. April 2025, 12:32 by marcmees
???

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Was the problem that you used R1C4 instead of R4C1 as a starting point? I fixed the text now.

Last changed on 30. April 2025, 13:05

on 30. April 2025, 11:49 by Merovius
In any 4x4 Sudoku, the sum of the digits in a row is always the same…

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I know. Last time I posted I got some comments on how people did not like having to solve more than one puzzle to get the solution code, so this time I made it so you do not have to solve a single puzzle.

on 30. April 2025, 11:25 by alhobj
Fixed numbering mistake in the difficulty selection section

Difficulty:1
Rating:56 %
Solved:211 times
Observed:8 times
ID:000N4V

Standard puzzle

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Solution code:

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