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