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