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