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