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