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