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