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Sudoku Corner
Ranked 1v1 sudoku with Elo, a monthly league and no ads
Race a real player on the same sudoku, or relax with solo puzzles. You see your opponent's live progress (never their digits); mistakes and hints add time and the lower total wins. Separate Elo ratings for Beginner, Intermediate and Expert, a monthly SC League with champion badges, daily challenges, match replays and a free technique academy from hidden singles to X-Wing. Web + Android, free, no ads.
Hi Product Hunt! I built Sudoku Corner because I wanted what chess players have: a rating that means something and a real opponent on the other side.
The hardest part was making a race fair over flaky mobile connections. Time is measured on the server, and when one player finishes, the other gets exactly the time they still need to catch up (their penalty difference plus a few seconds for the network), so a slow phone never decides a match.
Puzzles are graded with Sudoku Explainer, so a division is a real difficulty band, and the Expert puzzles need techniques like X-Wing and XY-Wing.
You can try a solo puzzle without an account. I'd love feedback on the ranked rules, the Expert puzzles and the first five minutes of onboarding!
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About Sudoku Corner on Product Hunt
“Ranked 1v1 sudoku with Elo, a monthly league and no ads”
Sudoku Corner was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #161 on the daily leaderboard. Race a real player on the same sudoku, or relax with solo puzzles. You see your opponent's live progress (never their digits); mistakes and hints add time and the lower total wins. Separate Elo ratings for Beginner, Intermediate and Expert, a monthly SC League with champion badges, daily challenges, match replays and a free technique academy from hidden singles to X-Wing. Web + Android, free, no ads.
Sudoku Corner was featured in Android (57.7k followers), Puzzle Games (4.3k followers) and Free Games (9k followers) on Product Hunt. Together, these topics include over 62.2k products, making this a competitive space to launch in.
Who hunted Sudoku Corner?
Sudoku Corner was hunted by Michal Řepásek. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Michal Řepásek