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