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