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