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