Your goal is to find the secret four-color code. The following colors are possible: brown, pink, blue, yellow, white, purple.
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: ['pink', 'blue', 'white', 'purple']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['brown', 'pink', 'pink', 'blue']. Hint: two colors are in the correct positions.
Guess: ['yellow', 'pink', 'purple', 'blue']. Hint: two colors are in the correct positions.
Guess: ['brown', 'pink', 'purple', 'white']. Hint: two colors are in the correct positions and one color is in the secret code but in the wrong positions.
A B C D
brown, white, purple, blue purple, blue, yellow, yellow purple, blue, yellow, brown blue, blue, blue, blue