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