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