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