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