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