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