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