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