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