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