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