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