Plan out your December! You have the following obligations:

  • one four-day event
  • two three-day events
  • three two-day events
  • four one-day events

There must be at least one rest day between any two events.

  • A number at the end of a row indicates the number of event days for that week.
  • A number at the end of a column indicates the number of event days for that day of the week.

Given rest days are indicated with a gray symbol and border.


  • Left Click on a date to toggle an event day
  • Right Click on a date to toggle a rest day
  • Z - Undo
  • Shift-Z/Y - Redo
  • R - Reset

(You can click an event on the left to toggle graying it out as a visual aid)

⚠️⚠️ We have found rendering issues when using Firefox 93.0 . If you are using this version of Firefox, please try using another browser or an updated version. ⚠️⚠️


This puzzle was created for The Confounding Calendar! I had a lot of fun coming up with a puzzle for this project!



- Unity 2019.4.29f1

- Unity Assets: Shapes, ScriptableObjectArchitecture, NaughtyAttributes, better-minimal-webgl-template

- Fonts: Outfit, Assistant

Updated 3 days ago
Rated 4.8 out of 5 stars
(16 total ratings)
Made withUnity


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i don't get it

This might be a really silly question but does the game let you know when you've solved it?  I *think* I've solved it but I can't actually tell :D

(1 edit) (+1)

Hey folith, the game will let you know when its been solved. (Note that events can wrap around a week (for example, Friday-Saturday-Sunday-Monday is one 4-day event, not two 2-day events hahah)


Really lovely.  Harder than it looks but also no tricks involved, just pure logical deduction.  (As I discovered after failing several times with wild assumptions.)


Can be solved step by step!!!!


very fun little puzzle, had me stumped for a bit :D


This was a lot of fun! The realization that the rules aren't as constraining in the same ways as similar-looking puzzles was daunting at first, but that extra layer of things to think about was really nifty. I look forward to the rest of this month!


great puzzle! 


Really fun puzzle and a great start to the month!


Great little puzzle that was kind of like picross with a unique twist! Fun to figure out


This was great (and hard!!).


Solved! wow