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