r/sudoku is a subreddit with 61k members. The community frequently discusses sudoku, help, puzzles, stuck, and techniques, and the most common flair used is request puzzle help, homemade puzzles, just for fun, daily game, and strategies.
This subreddit is for learning about and discussing the puzzle Sudoku and variants.
Popular Topics in r/sudoku
#1
Sudoku
278 posts
#2
Help
161 posts
#3
Puzzles
43 posts
#4
Stuck
43 posts
#5
Techniques
39 posts
#6
Puzzle
34 posts
#7
Struggling
19 posts
#8
Solve
16 posts
#9
App
15 posts
#10
Advanced
15 posts
Flair Used in r/sudoku
#1
Request Puzzle Help
: "What the heck am I missing here"
113 posts
#2
Homemade Puzzles
: "VariantDoku Daily Puzzle: August 21"
28 posts
#3
Just For Fun
: "Restaurant placemat in Azores"
13 posts
#4
Daily Game
: "Sudoku #20-08-2026"
9 posts
#5
Strategies
: "What this technique called?"
7 posts
#6
ELI5
: "Help understanding logic behind why this has to be a 4?"
6 posts
#7
Misc
: "Sudoku at the Mind Sports Olympiad in London"
6 posts
#8
No Notes
: "Hmmmmmmm"
4 posts
#9
Mildly Interesting
: "Board after POM :D"
3 posts
#10
TIL
: "I learned the hard way what a forcing chain is."
1 post
Member Growth in r/sudoku
Yearly
+20k members(47.4%)
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About
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Last updated: August 23, 2026