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