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