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