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One Simple Goal: Keep Making Tens
10 is a sliding number puzzle where every level revolves around the same target. You move numbered tiles around a grid and combine their values until they add up to 10. Once all of the numbers have been successfully turned into tens, the puzzle is complete.
The game was created by IOJOE and keeps its presentation deliberately simple. There are no characters to control and no timer forcing you to rush through every move. The challenge comes from deciding which numbers should meet first.
Drag a Number and Let It Slide
10 uses the mouse. Click and drag a numbered tile toward one of the four directions. The piece slides across the grid until something stops it.
When two suitable numbers collide, their values are added together. A 6 can join a 4 to become 10. A 7 and 3 can do the same job.
Not every combination is useful. Joining two numbers too early can leave you with a value that cannot reach the number needed to finish it.
Every Ten Changes the Board
A completed 10 does not disappear. It stays where it was created and becomes a solid block that other numbered tiles cannot pass through.
This is the part that makes the game much trickier than basic addition practice.
Every successful 10 takes away some movement space. If several tens form in awkward positions, the remaining numbers can become trapped.
It helps to look at the whole grid before moving anything. Think about which numbers have only one useful route and which ones can safely wait until later.
There Is No Need to Rush
10 is a puzzle about finding the correct sequence rather than beating a short countdown. You can take time to study the layout and decide what each move will change.
A level that first looks easy can become difficult after only a few moves. The numbers themselves are small, but the position of each block matters.
Math and Sliding Work Together
10 works because it combines two very simple ideas. You need to know which numbers add up to ten, and you need to understand how the tiles move around the board.
Knowing that 8 needs 2 is easy. Getting those two tiles together without blocking a 6 and 4 somewhere else can be the real puzzle.
The game starts with an idea that children can understand quickly, then turns it into a much deeper thinking challenge through careful positioning and planning.
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