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