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