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