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