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