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