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