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