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