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