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