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