Logic Masters Deutschland e.V.

Limitations Bonus Puzzle 3: One Lonely Digit

(Published on 30. July 2025, 20:41 by Md88keys)

Limitations Bonus Puzzle 3: One Lonely Digit

by Md88keys

 

Here is a 10x10 sudoku that combines limitations, missing digits, and irregular sudoku with dynamic fog. I hope you enjoy!

Play in Sudokupad

 

 

Fill the grid with the digits 0-9 without repeating a digit in any row, column, or marked region. There are eleven regions of nine cells, and one lonely digit left in a cell by itself.

Limitations: A digit does not repeat on the thermometer or any same colored line or any same colored dot. (For each constraint, there are no repeated digits--rules 1-7 below.)

1. The gray line is a thermometer, but the bulb is not given. Digits increase from one end to the other.

2. Digits on a purple Renban line form a set of consecutive digits in any order.

3. Adjacent digits on a green German Whisper line have a difference of five or more.

4. Adjacent digits on an orange Dutch Whisper line have a difference of four or more.

5. Region borders dived the blue line into segments with equal value. The value of each segment is the sum of its digits.

6. Black dots connect cells in a 2:1 ratio. (0 cannot appear on a black dot).

7. White dots connect consecutive digits.

The grid is partially covered in fog. Placing correct digits may clear fog somewhere in the grid.

Solution code: Row 2 (10 digits)


Solved by SKORP17, milxqueen, saiifh, raaaaa, Sauroman_The_Stinky, Exigus, trashghost, rameshsrivats, Nexys6969, Elliott810, Snookerfan, Cryccu, jkuo7, Sarhik, Aeon, 3ColorTheorem, pfox, abihummel, MalkoMann2, ... MaxSmartable, luca200799k, Fisherman, Nagesh, Ratzfaz, paranoid, Voidslime, moss1312, QuiltyAsCharged, softie, Shmartus, MattJones, aaronmanderson3, pepe74287, galium_odoratum, Atoro, kowareta
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Comments

on 11. August 2025, 16:09 by Voidslime
I adore the irregular regions in this one

on 3. August 2025, 11:30 by davidz32z
Love this series, always a fun added constraint and always very well done!

on 2. August 2025, 19:44 by ghostmary
Loving the limitations series. Thank you for sharing!

on 1. August 2025, 12:04 by s1mn
Love this puzzle! I had lots of fun solving it. Thank you!

on 31. July 2025, 15:05 by VitP
needs only basic sudoku, and basic reasoning.
--> level 1

on 31. July 2025, 12:30 by pfox
My first comment having only just created an account. I loved this! Some of my favourite constraints and beautiful logic. Thanks!

on 31. July 2025, 02:11 by rameshsrivats
Fantastic puzzle. Beautifully set.

Last changed on 31. July 2025, 00:48

on 31. July 2025, 00:48 by Exigus
This had some original logic (for me at least). Very cool. Thanks!

Difficulty:2
Rating:98 %
Solved:106 times
Observed:2 times
ID:000OGJ

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Solution code:

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