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