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