Which one of the following could be an accurate list of the colors of the lights that decorate stores 2, 4, 6, 8, and...

Emil-Kunkin on November 22, 2023

We have a setup that looks like this

_ _ _ _ _
_ _ _ _ _

So I would treat this as multi linear

From the rules alone we know

_ _ Y _ _
_ R _ _ _

This tells us that 6 and 3 must be green, since many other color would violate the first two rules

_ G Y _ _
_ R G _ _

We also know that 1 must be red, since it cannot be yellow, and it also cannot be green

R G Y _ _
_ R G _ _

Finally, we know that since we've used up our yellows, the final two slots on the first row are one red and one green, although we don't know which order.