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