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