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