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