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