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