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