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