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