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