We're giving you the second degree in brown-belt kakuro training! Go from good to great with these tough puzzles. Complete them all, and you'll be ready to earn your black belt.
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.