Your goal is to find the secret four-color code. The following colors are possible: red, yellow, pink, black, orange, 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: ['red', 'pink', 'orange', 'green']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['yellow', 'red', 'yellow', 'orange']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['orange', 'black', 'red', 'pink']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['black', 'yellow', 'green', 'red']. 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, orange, green, yellow black, orange, green, orange orange, orange, pink, yellow red, green, red, green