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