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