Sherlock Holmes games should be played using his own method. Before to play any of these games it’s important the players learn how to use Sherlock Holmes method. The important elements can be found on the cards. In order to understand if two or more cards belong to the same story you need to look for visual and textual clues.
If you see the same names repeated on two cards, you found an important clue, from this you can deduce that the cards belong to the same story.
Read the cards and look for important clues, once you think you found all the 6 cards that form a story you are the winner.