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