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