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