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