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