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