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