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