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