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