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