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