Calcudoku
banner
calcudoku.bsky.social
Calcudoku
@calcudoku.bsky.social
Calcudoku puzzle news from https://www.calcudoku.org, since 2009.
A bit silly that it took so long, but finally the site is available in Ukrainian (!)

calcudoku.org/ua

For Ukrainian speakers out there: please let me know if you notice any obvious language errors 🤔

The plan is to phase out Russian as an option as well.

#ukraine
#indiedev
November 29, 2025 at 4:14 PM
Version française de Calcudoku lancée ! Puzzles quotidiens gratuits.

😀🇫🇷

calcudoku.org/fr

Avis ?

#sudoku #puzzleslogiques #jeuxdelogique #calcudoku #Noël #Shein #PSG
Puzzles Calcudoku en Ligne – Résolvez des énigmes numériques amusantes et intéressantes
Jouez gratuitement à des puzzles Calcudoku de tous niveaux. Aiguisez votre logique et vos compétences en maths !
calcudoku.org
November 4, 2025 at 1:04 PM
A Calcudoku puzzle with arbitrary solution numbers (!)
Solve one online at:
calcudoku.org/user/2025-06...

no idea why #Caturday is trending, but hey, why not 😊
#wednesdayvibe #Taco Caturday Switch 2 #indiedev
June 4, 2025 at 6:03 PM
Another milestone: 34,567,890 puzzles solved at calcudoku.org 😃😃

To celebrate, a special 8x8 Calcudoku (aka Kenken) puzzle that uses the numbers 3, 4, 5, 6, 7, 8, 9, 0 !

#saturdayvibes #saturdaymorning #saturdaymotivation #CatUrDay #indiedev
May 24, 2025 at 3:11 PM
A new feature specifically for color blind people at calcudoku.org
(someone told me the "error red" was hard to make out)

#WednesdayMotivation #Wednesdayvibe #Wednesday #freeXRP #Ripple FOMC Tim Walz #puzzles #maths #indiedev
March 19, 2025 at 7:57 PM
A How to Solve video of the "best wishes for 2025" puzzle I posted a month ago 😎

www.youtube.com/watch?v=mBul...

#puzzle #puzzletime #coffeetime #saturday #indiedev #calcudoku #math #fbi #logicpuzzle #sudoku #followme
Solving the special 2025x Calcudoku puzzle
YouTube video by calcudoku
www.youtube.com
February 1, 2025 at 12:55 PM
still puzzled why there is an ever increasing flood of fake account signups from #Russia at www.calcudoku.org, since the #RussiaUkraineWar started 😒

Nothing better to do ?
January 11, 2025 at 3:00 PM
yes it was tricky to get 2025 as a clue 🤯

you can now solve this puzzle online at:

calcudoku.org/user/2024-12...

all the best for 2025 🔥🌟⛄🧨

#coffeetime #happynewyear #Top2000
#sundayvibes #vivek #h1b
#vuurwerkverbod #viaplaydarts #puzzle #puzzletime
December 29, 2024 at 4:15 PM
yes it was tricky to get 2025 as a clue 🤯

solve more Calcudoku puzzles for a 2025 IQ 😜

all the best for 2025 from calcudoku.org 🔥🌟⛄🧨

#christmas #coffeetime #fridayfeeling #happynewyear #SquidGame2 #STEM #Top2000 #LIVLEI #puzzle #puzzletime (not sure how to figure out trending topics on bluesky 😬)
December 27, 2024 at 1:27 PM
Finally a #dark mode at www.calcudoku.org 😀

🌜🌜🌜

#calcudoku #kenken #puzzle #indiedev

.. some tag surfing: #fbi #cybermonday #playstation #doj
December 2, 2024 at 4:33 PM
2nd #bluesky post 😀

A surely doable 6x6 Calcudoku 😀

Each row and column has the numbers 1-6 exactly once.
Single cells are givens,
double cells also show an operation: when applied to the 2 numbers, it should produce the shown result.

#calcudoku #kenken #sudoku #logic #math
#logicpuzzle #puzzle
November 16, 2024 at 12:01 PM
alright, first #bluesky post 😀

I'm testing a new puzzle interface at www.calcudoku.org/spa,
let me know what you think..

#gamedev #followme #indiedev #gaming
November 12, 2024 at 2:05 PM