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