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