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