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