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