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