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