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