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