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