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