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