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