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