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