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