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