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