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