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