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