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