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