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