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