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