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