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