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