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