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