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