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