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