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