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