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