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