Famous Frog Sudoku 800 Hard Puzzles With Solutions - Prijzen

The Big Book of Logic Puzzles

In Killer Sudoku, sub-regions have specified sums, and no number can be repeated within a region. This variant also called “Sums Sudoku”, “Sums Number Place”, “Samunamupure”, “Kikagaku Nampure”.

Mega Sudoku 16x16

Sudoku is a fun and addicting logic puzzle game that has taken the world by storm. This book is ideal for you if you love to solve difficult Mega Sudoku 16x16 puzzles. You do not need to wade through...

Sudoku Puzzles for Adults: Brain Twisting Fun Volume 4

Heyawake 400 Hard

Heyawake (from Japanese, “divided rooms”) is played on a rectangular grid. The grid is divided into rectangular “rooms”. Some rooms may contain a single number. These rooms must have the designated nu...