Counting Down From Five
(Published on 5. May 2025, 07:47 by oskode)
This was my first attempt at a FOW puzzle and was set a few months back, hence the classic fog reveal instead of the more popular dynamic fog. I still think it's a sweet puzzle, with an estimated difficulty at around 2 stars. Hope you enjoy!
Rules:
- Sudoku: Fill all cells with a digit from 1-9 such that no digit is repeated in any row, column or 3x3 region.
- Fog of War: The grid is covered in fog. Placing logically deduced digits into the correct cells will clear the surrounding cells of fog.
- Upon revealing the fog, you will find a total of
- 5 Killer Cages: Within a dotted cage, digits may not repeat and sum to the clue in the upper left corner of the cages top row. This sum is given for all cages.
- 4 Dutch Whispers lines: Adjacent digit along these orange lines have a minimum difference of 4.
- 3 Region Sum lines: Box borders divide each of these blue lines into segments with the same sum in every box it enters. Different lines may have different sums.
- 2 Same Sum diamonds: These yellow diamonds separate two pairs of digits which sum to the same total in both instances.
- 1 German Whisper line: Adjacent digits along this green line have a minimum difference of 5.
- All lines are at least 3 cells long and only move orthogonally (they don’t move diagonally).
Click here to play online!
Ratings and comments are very much appreciated. Thank you for playing!
Solution code: The digits in row 4, from left to right
Comments
on 13. June 2025, 06:07 by QuiltyAsCharged
Fantastic and fun puzzle! I hope the classic fog style doesn't go away completely, but can continue on alongside dynamic fog.
on 11. May 2025, 11:45 by thecbp
this puzzle is the one that finally got me to create an account here just so I could say I really liked this puzzle.
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What an honor, welcome!
on 9. May 2025, 17:44 by samuelsamjo
that was so smooth and fun!
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Happy to hear that!
on 9. May 2025, 03:18 by fishsaltyak
This is a masterpiece of a puzzle!
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Those are some big words! (That mean a lot to me, thank you)
on 8. May 2025, 11:24 by ACK
Loved the ruleset, brilliant puzzle.
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Thank you ACK!
on 8. May 2025, 06:49 by adelaide
loved loved loved the ruleset !
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Thank you so much, glad you enjoyed!
on 7. May 2025, 21:46 by dzamie
That same sum diamond rule was mean :P
Very useful, very clever, but kept me in so much suspense...
Thank goodness all lines are at least 3 cells long and only move orthogonally.
on 6. May 2025, 23:48 by fragglerock1981
Oh I liked that! A lesson in "Read. The. Rules."
34 mins for me. Thank you for sharing.
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Thanks for playing (and reading the rules)!
on 6. May 2025, 21:32 by firespire
Fun challenge, I recommend.
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Thank you so much!
on 6. May 2025, 04:46 by gamlesvarten
Loved this one!
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Glad to hear it!
on 5. May 2025, 20:59 by tubahat
let's say it once more for the people in the back:
all lines are at least 3 cells long!!
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I'll say it again: "All lines are at least 3 cells long"
on 5. May 2025, 19:47 by Adrian71
That's a very enjoyable puzzle indeed! Thanks for sharing
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Thank you for your kind comment!
on 5. May 2025, 12:31 by Ragna
Fun puzzle! Smooth and elegant. Thank you. :-)
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Glad you enjoyed it!
