Slide Puzzle is a classic sliding-tile game. The picture is broken into numbered tiles with one empty space, and your job is to slide them back into order. Tap or click any tile next to the empty square to slide it across. A small target picture on the side shows the finished layout to aim for. Keep sliding until every tile is in place.
Working out which tile to move next builds spatial reasoning, planning and patience. You can choose 3×3, 4×4 or 5×5 grids and switch between animal, fruit and sports themes, so the difficulty scales from a quick win to a proper brain-teaser and stays fresh across many plays.
It's built by a UK SEND tutor with QTS: calm, ad-free and with no third-party tracking. Every shuffle is always solvable and there's no timer pressure, so learners can experiment without fear of getting stuck. It plays in any browser on a tablet, laptop or whiteboard, which makes it handy for 1:1 tutoring and screen-share therapy sessions. Slide Puzzle is free to play with no signup.