LogicAtlasATLAS OF LOGIC GAMES
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Puzzle of the day

Two new puzzles every day: Picture Sudoku for little ones, Lantern Grid for older kids. Solve it, grow your streak, and send your result to your family or class.

Streak: 0 days

🔷 Picture Sudoku

Ages 6–8 · 4×4

🏮 Lantern Grid

Ages 9–12 · 5×5 · rules

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Finished all the puzzles? 216 puzzles in 9 games browse or printable worksheets download.

Frequently asked questions

Does the puzzle of the day change every day?

Yes. Puzzles are picked by date; everyone sees the same one on the same day, and a new one arrives the next day.

Are my results sent anywhere?

No. Progress and streaks are stored only in this device's browser. The share button only prepares the result text; you decide where to send it.

Is time measured?

No. There's a move count and a goal, but no timer. Take your time to think.

Can the whole class solve the same puzzle?

Yes. Everyone who opens it on the same day sees the same puzzle; you can also solve it together in whiteboard mode.