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