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