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