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