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