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