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