Hard Sudoku

by Frank Longo

Overview

Increase your sudoku skills, one terrific puzzle at a time, till you’re a puzzle master!

Have you mastered beginning-level sudoku and want something just a little harder? These 246 puzzles provide the terrific mental workout you’re looking for. This collection will get you into peak cognitive fitness, as you work your way through increasingly challenging conundrums.  By the time you’re finished, you’ll be a sudoku expert!

Reissue of Easy-to-Hard Mensa Sudoku

Product Details

ISBN-13:	9781454937265
Publisher:	Puzzlewright
Publication date:	08/06/2019
Pages:	160
Sales rank:	422,425
Product dimensions:	5.90(w) x 8.80(h) x 0.40(d)
Age Range:	14 - 18 Years

About the Author

Frank Longo is a freelance puzzle creator living in Hoboken, NJ. He has had over 2,000 puzzles published since 1993. Longo has written many books for Sterling, such as Sit & Solve® No-Sweat Sudoku, 10×10 Sudoku, Sudoku U, and Way Beyond Black Belt Sudoku, as well as many crossword books. His books have combined sales of more than five million copies.