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