A little space. A little possibility.
Number Slide
One empty square.
A whole new way through.
Slide into the space. Find the order.
A quiet puzzle. Ready when you are.

01 / A world with room to move
Possibility
begins with
a space.
One empty square changes the board.
Move into it, and another way opens.
02 / The quiet little cast
Everyone has
their place.
A few familiar numbers.
And the little space
that brings them together.
The first in line
A beginning to build around.
The next neighbour
One small slide from belonging.
The possibility
Empty, but never doing nothing.
03 / That last little slide
From almost.
To in order.
The rows line up. The route becomes clear.
One last neighbour moves into the space.
There it is.
04 / Let your thinking wander
Start small.
Think a little bigger.
Slide neighbouring tiles into the empty space until every number is in order. Grow from gentle first moves to larger, more demanding puzzles.
A different kind of company
The same board.
A friend on the other side.
Take your time alone, race a friend on the same board, or enter a ranked head-to-head match. Private races welcome guests; ranked matches need a signed-in account. Both players need to be online.
Verified solo attempts need sign-in. Open a puzzle, then choose “Ranked play & scores” to start a fresh ranked run. Monthly ratings and legends are public.
Your pocket guide
Find the gap.
Find your way.
- The rule
- Slide a neighbour into the gap. No diagonals. Finish in reading order, with the gap at bottom right.
- Your move
- Tap or drag a tile. With a tile focused, press the arrow key toward the space.
- A little help
- Undo a move or ask for a route hint whenever you need one.
Solo progress is saved on this device when browser storage is available. Pick up where you left off.

Your next little satisfying thing
Make a
little space.
One space. Room for possibility.
Play Number Slide