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