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