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