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