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