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