These puzzles are more difficult than other “hard” puzzles in newspapers or in most other Sudoku books. You will need to solve these puzzles using advanced logic techniques for:

Keep this large-print 8.5” x 11” book next to your favorite thinking chair or tear out a page and take it with you.

• 200 Puzzles require the use of one advanced logic technique. Trial and error is NOT required.
• Two big puzzles on each page give you plenty of space to note candidates and sturdy paper holds up well to erasing.
• Extra wide center margins make it easier to solve the puzzles when you fold the book back.
• Large print on white paper is very easy to read (even in dim light).
• Each puzzle has one solution provided at the back of the book. Feel free to peek if you get stuck or want to verify your answer.