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