This is a deduction game that was published in The Games Journal. The rules are available at:http://www.thegamesjournal.com/rules/DeduceOrDie.shtmlYou will need 3 decks of cards and the deduction sheets to play. Here is the game description from the website:'If you're a fan of deduction games such as Code 777, Clue, Sleuth or Black Vienna, here's an original design you may want to check out. I actually find it more challenging than any of the games I've listed, a statement that will be greeted with delight by some and with horror by others. If you're still with me, be prepared to sharpen both your pencils and your little gray cells. The game is afoot!' -The Games Journal - BoardGameGeek