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