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