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