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