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