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