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