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