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