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