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