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