Fill in the grid using the 4 symbols I,X,S & O (and corresponding colors) until EACH CEL of the grid is covered. The symbols are always placed in an L- shape covering 3 identical cells/symbols.
GAME RULES:
Rule 1 Take the pre filled cells in account: blue on blue, green on green, etc....
Rule 2 L-tiles with the same color CANNOT TOUCH one another, not with a side nor with a corner.
Rule 3: The grid needs to be filled COMPLETELY with L-tiles.