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