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