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, eli5, 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 this 'sudoku' for kids solvable? I don't get it"
120 posts
#2
Homemade Puzzles
: "VariantDoku Daily Puzzle: August 6"
26 posts
#3
Just For Fun
: "happens every day lol"
10 posts
#4
ELI5
: "Is this a hidden triple?"
7 posts
#5
Misc
: "Omg"
7 posts
#6
Strategies
: "How does bug+1 work?"
7 posts
#7
Daily Game
: "Sudoku #09-08-2026"
6 posts
#8
Mildly Interesting
: "This was graded “Medium” in the book"
2 posts
#9
Solved
: "La sfida impossibile n. 1095"
2 posts
#10
Mod Announcement
: "Sudoku Puzzle Challenges Thread"
1 post
Member Growth in r/sudoku
Yearly
+20k members(47.7%)
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About
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Last updated: August 14, 2026