Logic Masters Deutschland e.V.

Foggy Knight

(Eingestellt am 28. Juli 2023, 11:02 Uhr von Die Hard)

Normal Sudoku rules apply. The grid is covered by fog and correctly placing digits may reveal additional digits.

Each digit (except the digit in the very centre of the grid) satisfies only one of the following conditions:

  1. It can see the same digit (at least once) with a knight's move.
  2. It is in its own box (eg: 9 in box 9)
  3. It is the digit 5.

The digit in the very centre of the grid satisfies two conditions.

No guessing is required or allowed.

Play on CTC

Please leave comments.

Cracking the Cryptic Solve

This puzzle was solved on CtC:

Watch the Solve

Lösungscode: All 9 digits from row 9.

Zuletzt geändert am 8. Januar 2024, 08:07 Uhr

Gelöst von Chelo, Asphodel, by81996672, jalebc, sanabas, h5663454, SKORP17, Jagga, sandrokv, aholst, hoopsie, tweak42, bansalsaab, lianarox, gynu, galgamer, Julianl, SeveNateNine, emmi123, lvdoutang, Shrouded, ... fstilus, Kcafecalb, Sewerin, alodark, saskia-daniela, michaal94, Uskok, Hyun, tess, mmhhhh, Wyrdsister, lovely, Mr. Happy, cornuto, PippoForte, SudokuHero, rares495, Quidrex, PrinnyDidi, WeezerFan
Komplette Liste

Kommentare

am 8. Januar 2024, 08:07 Uhr von Die Hard
Added link to CtC solve.

am 6. September 2023, 20:00 Uhr von OGRussHood
Another mad puzzle that forces the solver to ask mad questions.

am 6. September 2023, 06:09 Uhr von Fisherman
Thanks mse326 for your comment. Mark and Simon at CTC were also surprised by the rating. Gentlemen, control your emotions. To err is sudoku.

am 6. September 2023, 02:49 Uhr von mse326
I just want to let future solvers know, this puzzle is amazing. The rating seems to be about bugs in the software, not the logic or enjoyment of the puzzle itself. It seems the bugs are fixed so don't let the rating put you off

am 6. September 2023, 00:44 Uhr von antiknight
Cool puzzle with a nice second step!

am 5. September 2023, 23:20 Uhr von Fool on Hill
This is a well conceived, well executed and enjoyable puzzle to solve.

am 3. September 2023, 04:53 Uhr von Die Hard
Updated link now that Sudokupad bugs have been fixed.

am 4. August 2023, 06:08 Uhr von Die Hard
I have re-tested both links and on successful completion they both say "The solution is correct".

am 3. August 2023, 15:29 Uhr von Superdamicobros
Felt the frustration with the CTC app on this one. Was happy that the link to the alpha version was included. I was worried when I made it to the end and it said my solution was incorrect. Might be worth putting a note to let others know that it doesn’t check for the correct solution. Otherwise a fun ruleset, thanks for the puzzle.

am 3. August 2023, 02:26 Uhr von wenchang
Nice Foggy! Spoiler alert!
https://youtu.be/A7MdpaKxX-0

am 2. August 2023, 00:56 Uhr von Ragna
All this is quite confusing to me. Sorry.

am 1. August 2023, 14:42 Uhr von Die Hard
Added link to alpha App with bug fixes.

Zuletzt geändert am 31. Juli 2023, 04:38 Uhr

am 31. Juli 2023, 04:37 Uhr von thoughtbyte
Fun puzzle, but some of the issues with the puzzle in SudokuPad make the solve a bit frustrating. In addition to not being able to pencil mark some cells, I also couldnt place the digit in a cell once I deduced what it was since there was a given digit underneath the fog. Additionally it seems that the puzzle has an anti-knight so i had to turn off the conflict checker.

I understand the app will release an update that fixes this but perhaps using single cell cages until then would be helpful.

am 30. Juli 2023, 12:28 Uhr von Baklin
This was a fun one to solve. Even with the quirks in CTC with this puzzle. Working without pencil marks gave it another challenge for me. Really fun to solve one I got my head around the limits with these rules. Thanks for setting this.

am 29. Juli 2023, 19:00 Uhr von TempFxD
really wanted to give it a try because it started off quite enjoyable. sadly enough I cant correctly make pencil marks that dont actually reveal the solution

am 29. Juli 2023, 00:03 Uhr von bansalsaab
Very nice ruleset.

Zuletzt geändert am 28. Juli 2023, 13:12 Uhr

am 28. Juli 2023, 13:12 Uhr von by81996672
Fun rules, but not difficult, more people can give it a try

am 28. Juli 2023, 12:39 Uhr von GorgeousNicko
Interesting puzzle, on which I am still working. Two funny issues with the CTC version. One is that some cells (probably those with underlying pre-specified content)will not permit entering of pencil marks. The other is that the anti-knight constraint seems to be active (which, of course, it ought not to be).

am 28. Juli 2023, 12:26 Uhr von Die Hard
A can assure everyone the 2nd deduction is possible through logic (and it does not require any multi-step look-aheads). Happy hunting.

am 28. Juli 2023, 12:21 Uhr von Chelo
This foggy "Miracle" puzzle is one of my favorites, thank you @Die Hard for setting it!..

am 28. Juli 2023, 11:38 Uhr von 28righthand
Thats an interesting quirk I hadnt noticed before - you cant pencil mark a cell if it contains a number that I presume would be uncovered by fog.

Schwierigkeit:4
Bewertung:84 %
Gelöst:106 mal
Beobachtet:3 mal
ID:000EMM

Lösung abgeben

Lösungscode:

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