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