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