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