This is an organiser’s format, not an online tournament feature. Sudoku Arena does not claim brackets, cloud scoring or global matchmaking. Bluetooth or Wi-Fi must remain enabled throughout nearby play, even though mobile data and internet access are not required.
1. Define the field and rounds
Use one room for up to eight players. For a larger gathering, divide people into separate heats and appoint one host per room. Decide whether the event uses a fixed number of rounds, qualifying heats followed by a final, or a simple round-robin Duel format.
2. Publish the same house rules
- Choose 6×6 for shorter rounds or 9×9 for a longer test.
- Set one of the three difficulty levels for the whole round.
- Choose Classic or Blitz pacing.
- State whether notes, hints, undo, pause and optional variants are allowed.
- Use the same display convention—or allow digits, colours and shapes as an accessibility preference.
3. Start each nearby room carefully
Have each host create a fresh room and display its QR invitation. Players can scan it or enter the room code. Confirm the intended participants have joined before the host starts the round. Keep devices nearby with Bluetooth or Wi-Fi enabled.
4. Record results outside the app
Use a paper sheet or organiser-owned spreadsheet to record each round’s result. This avoids implying that Sudoku Arena provides an online tournament service. Decide tie-break rules in advance—for example, a Duel rematch on the same chosen settings.
5. Keep the event fair
Charge devices, minimise interruptions, give everyone the same start signal and avoid changing settings mid-round. If a local connection fails, pause the event decision and replay only under the rule announced before the tournament.