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