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