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