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