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