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