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