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