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