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