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