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