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