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