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