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