---
title: 'Sudoku on Cosmos Video'
description: 'A solo Sudoku game with easy, medium, and hard difficulty, hints, notes, and shareable scores. Built-in to every Cosmos Video space for solo focus breaks.'
url: '/product/team-building-games/sudoku.md'
lastModified: '2026-04-21'
contentType: 'Team Building Game'
keywords: ['sudoku', 'team building', 'remote team games', 'virtual office game', 'solo puzzle game']
target_audience: 'remote teams, distributed workforces, team leads, HR / people ops'
---

# Sudoku on Cosmos Video

Sudoku on Cosmos Video is a solo number puzzle where the player fills a 9x9 grid so every row, column, and 3x3 section contains the digits 1 through 9. Cosmos Video ships it as a built-in single-player game with easy, medium, and hard difficulty levels, hints, note-taking, and wrong-number detection. It is on the team-building list because the final score is shareable with teammates, creating light friendly competition even when no one else is playing at the same time.

Sudoku runs inside a Cosmos Video space with no external app or install. A player opens a game room, picks a difficulty, and starts solving with the built-in hint, notes, and validation tools. Because the puzzle lives inside the same space where meetings and focus rooms happen, it works as a quick mental reset between calls without switching tabs. Sharing scores in a team chat turns the solo activity into an async competition for distributed workforces.

## How to Play

1. Open a Cosmos Video game room and select Sudoku.
2. Choose a difficulty: easy, medium, or hard.
3. Fill each cell so every row, column, and 3x3 box contains 1 through 9.
4. Use the notes feature to pencil in candidates. Wrong placements are flagged.
5. Finish the board, see your time and score, and share the result with your team.

## Good For

- Team sizes: Solo — shareable async with the whole team
- Mental reset breaks between meetings
- Post-sprint or post-release decompression
- Friendly async competition through shared scores
- Students studying remotely who need a focus break between sessions

## Frequently Asked Questions

### How many players do you need?

Sudoku is a solo game — one player per puzzle. The team-building angle comes from the shareable score: post results in a team channel and colleagues can run the same difficulty and compare times. No live multiplayer session is required.

### Does it require any preparation?

No. Difficulty selection, hint system, notes, validation, timer, and score tracking are all built into Cosmos Video. A player opens a game room, picks a difficulty, and starts solving — nothing to install or configure.

### Can remote teams play it?

Yes. Sudoku works for remote teams precisely because it is async — teammates in different time zones can run the same difficulty and compare scores later. For live sessions, multiple teammates can start the same difficulty at once and race to finish with video on.

### What difficulty levels are available?

Three: easy, medium, and hard. Each difficulty supports hints, notes, and wrong-number detection. Hard mode still allows hints for players who want a challenge without getting permanently stuck, so the game adapts to both casual and serious solvers.

## Related Pages

- [How to Play Sudoku](/product/team-building-games/how-to-play-sudoku.md) — detailed rules and facilitation tips
- [Team Building Games catalog](/product/team-building-games.md) — all built-in multiplayer games
- [Game Rooms for Team Building](/product/features/game-rooms-for-team-building.md) — how game rooms work inside a Cosmos Video space