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