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