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