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