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