Click a tile and it will change colour along with a tile adjacent to it. Try to get the numbers 4 7 0 and 1 all in yellow. If you get stuck, press the flag to reset. Red/Blue tile puzzle: https://scratch.mit.edu/projects/302688730/
Jonochrome for the Riddle School series. Update 1: Added screenshots for reference. Update 2: Fixed positioning of tiles.
