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