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