r/sudoku is a subreddit with 64k members. The community frequently discusses sudoku, help, puzzles, stuck, and techniques, and the most common flair used is request puzzle help, homemade puzzles, strategies, misc, and mildly interesting.
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
: "Expert sudoku help"
42 posts
#2
Homemade Puzzles
: "VariantDoku Daily Puzzle: September 30"
14 posts
#3
Strategies
: "What are easy strategies I should know?"
7 posts
#4
Misc
: "Trying to Find App"
5 posts
#5
Mildly Interesting
: "Filthiest classic puzzle I've seen. SE 9.5/Hodoku 64199"
4 posts
#6
ELI5
: "Can somebody tell me why this cell can only be an 8?"
3 posts
#7
Daily Game
: "Sudoku #29-09-2026"
2 posts
#8
Just For Fun
: "websudoku.com puzzle Evil Puzzle 6,923,424,614 is surprisingly difficult"
1 post
Member Growth in r/sudoku
Yearly
+20k members(45.0%)
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About
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Last updated: October 1, 2026