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