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