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