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