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