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