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