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