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