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