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