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