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