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