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