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