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