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