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