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