Terms & Fair Play

A puzzle game, not a money game

Sudoku Mates offers local Solo/Practice, local Daily puzzles in the mobile app, server-saved browser Daily attempts and live multiplayer races. Match results, rankings and achievements are game records. Optional advertising and native store purchases depend on the platform, service configuration and launch checks. Website advertising is limited to Sudoku gameplay; the corporate vircit.com website remains ad-free.

No account, email address or password is required in Nobody mode. A secret credential on your device identifies that profile; losing it may prevent recovery. When configured and enabled, optional Apple, Google or email-link sign-in saves your profile across devices. The first save preserves its player ID. If a saved account already exists, you choose whether to use it or explicitly merge your current Nobody profile into it. Keep credentials private.

Play fairly and respect other players

• Use an appropriate display name. Do not impersonate another person or include hateful, threatening, harassing or personal-contact content.
• Do not use bots, external solvers, exploits or manipulated clients to gain an unfair advantage in a multiplayer race.
• Do not disrupt rooms, spam invitations, bypass service limits or attempt to access another player's profile or account.
• Respect a player's decision not to share filled-cell positions or accept a friend request.

You can block a player from the in-game player list or contact support@kono.dev to report a problem. Include relevant room details, not credentials or session tokens. The service uses validation and rate limits to protect play.

How multiplayer races work

The server creates one puzzle and a shared start time. A host can start when at least two connected players are ready. Room rules determine difficulty, mistake limits, free hints, note assistance and whether late joining or cell sharing is available.

• Invalid placements cost mistakes. Reaching the room's mistake limit loses the race, although you may continue solving.
• Undo does not refund mistakes or change a declared winner.
• The first correct board wins. If all rivals are eliminated, the last remaining player wins.
• Late joining keeps the original start time. A connection problem does not pause everyone else's game.
• Paid hints, extra lives and revival are unavailable. Optional videos, where enabled, are outside active races. No purchase changes a race.

Your answers and notes are private from other players. Progress, mistakes and results are visible as explained in the Privacy Policy. Local Solo and native Daily results are separate from server-verified race results. Browser Daily attempts and their results are saved with the server profile.

Availability and saved progress

Live play needs an internet connection. Connections, devices and service maintenance can interrupt play. Optional sign-in, purchases and social notifications depend on enabled, configured providers. We do not promise uninterrupted access.

Rooms and Nobody profiles expire under the published retention rules. Saved account profiles are retained until deletion, independently of account device sessions expiring 30 days after issue unless renewed. Each profile keeps at most 50 archived matches. Local progress depends on the storage available on your device or browser. Clearing that storage can remove it; signing out does not delete a saved account.

Deleting a server profile leaves active rooms and removes that profile's server data. Other players retain their own match records, with deleted-player labels where applicable. See Delete data for the exact scope.

Optional purchases and credits

The native Shop shows the store's current product and price only when purchases are enabled. Apple or Google handles payment. A purchase or video reward is confirmed after server verification; a completed client animation does not confirm a credit grant. Test ads do not award credits.

Credits are game-only units with no cash value, withdrawal or player-to-player transfer feature. Credit spending is currently unavailable. Banner removal applies to menu banners for the verified profile, including an explicitly linked saved account, and leaves optional rewarded videos available. Store availability and the enabled product selection can differ by platform.

Keep access to your Nobody profile, or save it through an available sign-in method. Purchases and balances do not automatically move to an unrelated profile. A confirmed merge links verified balances and entitlements to your account without rewriting original purchase ownership. Store restore does not recover consumed credit products or an unsaved Nobody credential. A saved account may be recovered through its linked sign-in method. Deleting the profile or account removes its balances and banner entitlements; deletion does not request a store refund. Unlinked receipt digests and refund state remain to prevent duplicate grants. A verified refund reverses the related grant and can leave a negative balance if credits have been spent.

For purchase support contact support@kono.dev. Refund requests follow the applicable Apple or Google Play process and statutory rights. Do not send session tokens or payment credentials.

Software and notices

Third-party fonts and software are used under their respective licenses. Their notices are available on the Licenses page. Those licenses apply to the components they cover; they do not automatically grant rights to every part of Sudoku Mates or its branding.

Changes and contact

The game and these terms may change as features are added or removed. This page identifies its latest update date. These terms do not limit rights that applicable law does not allow to be limited.

Operator: VIRCIT OU
Questions or reports: support@kono.dev