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