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