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