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