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