by Conceptis Puzzles (Author)

When just having a black belt in kakuro isnt enough, step up to the next level! These tricky puzzles require the very best skills-and give top solvers the complete mental workout they want.

Author Biography

Conceptis Ltd. is the leading number-logic and picture-logic puzzle supplier to magazine, newspaper, book, mobile, game console, and board game providers all over the world. Every day, over 10 million pages with Conceptis puzzles are printed in 40 countries worldwide.