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