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