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