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