Blokus for Scratch CREDITS TO FFRED You don't play against the machine, you need others players. "Each player chooses a color and takes a set of 21 blocks" Click on the color arrow in the color square to see the blocks one by one. Click on the name Blokus to see all the set (21 pieces). BLUE begins and places his first block on the first square of his corner, then BLUE clicks on the big blue arrow. YELLOW do the same thing, then RED, and GREEN. "Each new piece must touch at least one other piece of the same color, BUT ONLY AT THE CORNERS! The goal is for players to fit as many of their pieces on the board as possible.