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