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