A moment to play.

Swap the points. Follow the lines. Find a little clarity in the crossings.

• Logic
• No time limit
• 11 boards

Tap or use your keyboard. Undo any move.

Choose a puzzle in Untangle

Give every number its own place in each row, column and box, one quiet step at a time.

• Numbers
• No time limit
• 11 boards

Make pencil notes. Change your mind.

Choose a puzzle in Sudoku

Tap one lantern and the ones beside it answer. Find the order that leaves the room quiet.

• Logic
• No time limit
• 12 boards

Tap or use your keyboard. Undo any move.

Choose a puzzle in Lanterns

The numbers beside each row and column say how the filled squares run. Follow them and a small picture appears.

• Logic
• No time limit
• 12 boards

Fill, cross out, change your mind.

Choose a puzzle in Picture Logic

Every domino in the set is somewhere in the rectangle, exactly once. Draw the boundaries, or lay the pieces so every region makes its sum.

• Logic
• No time limit
• 20 boards

Join two neighbours, or lay a piece. Change your mind.

Choose a puzzle in Dominoes

Each number has a partner somewhere on the grid. Draw a thread between them, and let no two threads share a square.

• Logic
• No time limit
• 12 boards

Draw a thread. Draw it back to undo it.

Choose a puzzle in Threads

Each number counts the sides of its own cell that the line uses. Draw until a single loop closes, with no branches and no crossings.

• Logic
• No time limit
• 12 boards

Draw a side. Draw it again to take it back.

Choose a puzzle in Loops

Every piece belongs somewhere in the frame, with no gaps and nothing left over. Turn them until they sit.

• Spatial
• No time limit
• 12 boards

Choose a piece, turn it, choose a square.

Choose a puzzle in Shapes

Pour a run of tokens onto a jar whose top matches, or into an empty one, until every jar holds a single kind.

• Tidying
• No time limit
• 12 boards

Pick a jar, pour it into another. Undo any pour.

Choose a puzzle in Colour Jars

Everyone has to reach the far bank, and some of them cannot be left alone together. Find the order that gets them all across.

• Logic
• No time limit
• 9 boards

Choose who travels, then cross. Undo any crossing.

Choose a puzzle in Ferry

Coins that all look the same, a pair of pans, and very few questions. Choose what to put on each side before you know what it will tell you.

• Logic
• No time limit
• 13 boards

Load the pans, then weigh. Undo any weighing.

Choose a puzzle in Weighings