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