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