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