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