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