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