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