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