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