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