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