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