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