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