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