Solitary Sudoku (New Number and Logic Puzzles)

Solitary Sodukus are giant grids where many of the options are given—your task is to work out how to start a Chain Reaction to solve the grid. Les Page has devised some ingenious and challenging new puzzles for anyone who enjoys Sudoku, KenKen, Train Tracks, and similar puzzles. Sometimes difficult, sometimes easier—but always interesting. A puzzling breath of fresh air!