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