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