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