Below, you see a square with fifteen numbered movable tiles and an empty space in the bottom right corner. The tiles are arranged in the correct order, except for the numbers 14 and 15, which have been swapped.

The question: How should the tiles be moved so that all tiles are in the correct order, with the empty space back in the bottom right corner?

A hint : By clicking on a tile that is next to the empty space, the tile will slide into the empty space. By clicking on a tile that is in the same row or column as the empty space, you can move multiple tiles at once.

The answer: Click here!

Another question: How should the tiles be moved so that all tiles are in the correct order, with the empty space in the top left corner (see below)?

Another answer: Click here!