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