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