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