In the book The Westing game why did Sam Westing fake his death?

In the book "The Westing Game," Sam Westing faked his death as part of an elaborate plan to bring together a group of diverse individuals and test their problem-solving skills. By creating a mystery surrounding his supposed murder, Westing hoped to challenge the heirs to his fortune to uncover the truth and ultimately reveal the true heir to his estate. This plot device serves as the central mystery of the novel and drives the characters to work together to solve the puzzle.