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