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