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