r/sudoku is a subreddit with 60k members. The community frequently discusses sudoku, help, puzzles, stuck, and techniques, and the most common flair used is request puzzle help, homemade puzzles, strategies, just for fun, and misc.
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
: "Is trial and error the only option here?"
62 posts
#2
Homemade Puzzles
: "VariantDoku Daily Puzzle: July 26"
9 posts
#3
Strategies
: "how do you find hidden pairs/triples?"
6 posts
#4
Just For Fun
: "sudoku dot coach got me like"
4 posts
#5
Misc
: "Looking for a sudoku book written by an MIT professor"
4 posts
#6
ELI5
: "XY wing"
3 posts
#7
Solved
: "Sometimes it just flows"
2 posts
#8
Mildly Interesting
: "I fear I'm addicted"
2 posts
#9
No Notes
: "How do I do it on paper?"
2 posts
Member Growth in r/sudoku
Yearly
+19k members(48.0%)
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About
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Last updated: July 30, 2026