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