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