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