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