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