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