door Inazuma » 14 aug 2023, 00:33
It can't be white
White has to yield to red, coming from the right
Blue has to yield to white
So it can't be blue either
Red doesn't have to yield to anyone coming from the right, so red can go first
It can't be white
White has to yield to red, coming from the right
Blue has to yield to white
So it can't be blue either
Red doesn't have to yield to anyone coming from the right, so red can go first