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