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