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