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