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