yellow yellow yellow blue

Purple Purple Purple Purple

Woo!

Yay! Watch out, security *wicked smile*

purple purple purple purple

Purple Red Red Red

Lee, I have a question about my current vault @_@...

1st guess = red red red red
2 color, 2 location
.
Then

red red blue blue
2 color, 1 location

yellow red red yellow
3 color, 0 location

red first = confirmed location right?

if red red red red = 2 color, 2 location and yellow red red yellow = 3 color, 0 location, then second location of red is the last one, since red second and third = 0 location.

So, if -
red yellow purple red
4 color, 2 location

those 2 locations confirmed have to be red(first and last). How then is:

red purple yellow red = 4 color, 1 location?

Red blue yellow red

blue blue blue purple