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