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