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