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