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