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