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