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