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