Sudoku Communities

A thriving Reddit community with 150,000+ members and 5,000+ daily active users. Features expert-level discussions on advanced solving techniques, daily puzzle sharing, beginner help, and competition updates.

Community for Sudoku enthusiasts of all skill levels. Provides help for stuck players, features content from Sudoku.coach, and offers co-op supervised game events.

A broad puzzle-solving community that harbors a rich collection of Sudoku-related content and discussions alongside other puzzle types.

One of the largest Sudoku Discord servers with 29,500+ members. Members solve puzzles daily, share strategies, and compete in friendly challenges.

Fan-created community of CTC and puzzling enthusiasts with 3,000+ members. Members discuss puzzle solving, setting, theory, programming, and CTC content.

Community run by BremSter (YouTube puzzle solver); discussion of solves, technique sharing, puzzle submissions.

3,262 members; community for the sudoku.coach web app — learning techniques, sharing puzzles, discussing strategies.

One of the oldest and most active Sudoku forums. Has 1,364+ topics in General discussion, 5,622+ topics in the Puzzles section, and dedicated sub-forums for advanced solving techniques.

Responsible for selecting Indian teams for World Puzzle and Sudoku Championships. Maintains an active forum with puzzle discussions and organizes numerous puzzle contests.

Forum companion to the Daily Sudoku website where members discuss daily puzzles and solving strategies.

Community forum covering puzzle solving, strategies, specific puzzles, and the Sudoku Dragon software.

Discussion forum for UK puzzlers; UK representative of the World Puzzle Federation. Includes sudoku discussion and competition coordination.

Part of the Puzzle Baron network (6M+ users/year since 2006); monthly competitions with leaderboards.

Discussion forum for the SudokuPad app (used by Cracking the Cryptic); puzzle sharing and variant discussion.

Main Sudoku channel on Telegram for puzzle sharing and discussion.

Friendly puzzle group; solve, chat, and grow with players from around the world, beginners and pros.

The largest Sudoku YouTube channel (690,000+ subscribers), run by Simon Anthony and Mark Goodliffe. The surrounding community spans YouTube, Discord, Patreon, and a Fandom wiki.

A major puzzle community with 34,236+ puzzles in the portal. Forum hosts discussions about puzzles, competitions, tips, and tricks. A key hub for competitive puzzle enthusiasts worldwide.

Hosts the annual Sudoku Grand Prix competition open to international participants. Central hub for competitive Sudoku at the world level.

A platform for playing Sudoku together socially with other people in real time.

Built-in community feature on the Daily Killer Sudoku website for discussing daily puzzles.

Grandmaster Puzzles community by Thomas Snyder (3x World Sudoku Champion); daily logic puzzles and competition-grade content.

Ad-free platform for solving and sharing Sudoku puzzles with a hint system explaining the logic behind each step.

Active streaming category with 26K+ hours watched; live solvers, speedruns, and interactive puzzle streams.

WPF Australian affiliate promoting competitive sudoku at state, national, and international levels.

US team selection for World Puzzle/Sudoku Championships; annual USPC and qualifying competitions.

Live battles against real players with instant matchmaking, tournaments, and rankings.