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