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