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