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