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