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