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