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