First click the board to create a random setup. A mouse, a cat, several cheeses and several blocks will appear.
You direct a mouse which is trying to eat all cheeses while avoiding being caught by the cat.
If the mouse has eaten all the cheeses it becomes invincible and you win.
If the cat captures the mouse, you lose.

The mouse slides any number of empty spaces in any orthogonal direction. To move the mouse simply click the target square.
The mouse must land on a cheese to eat it; it cannot move onto the cat or a wall.

The cat runs any number of empty spaces horizontally toward the mouse until blocked; otherwise it runs any number of empty spaces vertically toward the mouse until blocked; otherwise it MUST wait (pass the turn).
The cat must move onto the mouse to capture it.
The cat cannot move onto a cheese or a wall.

Due to randomizing not all setups might be solvable. However, these cases seem to be rare.

Variant 2: 15 random cheeses and 15 random walls
Variant 3: 20 random cheeses and 20 random walls

The game idea of 'Cat and Mouse 5' is copied from 'Angel Maze' by the same author.