Your goal is to find the secret four-color code. The following colors are possible: green, yellow, black, white, pink, 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: ['white', 'green', 'black', 'pink']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['green', 'yellow', 'yellow', 'black']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['pink', 'black', 'green', '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', 'brown', 'white']. 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
black, pink, yellow, white black, white, yellow, green pink, green, pink, green yellow, brown, green, white