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