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