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