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