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