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