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