Your goal is to find the secret four-color code. The following colors are possible: brown, yellow, pink, purple, blue, white.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['white', 'yellow', 'pink', 'purple']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['brown', 'yellow', 'yellow', 'white']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['white', 'brown', 'yellow', 'pink']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['pink', 'yellow', 'white', 'yellow']. Hint: two colors are in the correct positions.
A B C D
white, purple, blue, white blue, blue, brown, yellow yellow, yellow, white, brown purple, yellow, white, brown