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