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