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