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