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