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