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