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