What is the solution in th book havtches?

The solution in the book Hatchet is that Brian Robeson, the main character, survives his plane crash in the Canadian wilderness by using his creativity, resourcefulness, and determination. He learns how to build shelter, find food, and start a fire. He also learns how to deal with the psychological challenges of being alone and stranded in the wilderness. Throughout the story, Brian grows as a person and learns valuable life lessons.