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