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