Sangaku #2 (Professor Hill Presents the World's Greatest Number Puzzles!)

Sangaku returns with more addictive number puzzles. Similar to the wildly popular Sudoku, the all new Sangaku requires players to fill out a pattern, shape, or grid using mathematical rules. These rules change according to the shape of the board, however, and the numbers presented in sets are also different for every puzzle. If that wasn’t enough, almost every puzzle has more than one solution, meaning that players get twice the puzzles for the price of one!

Japanese for “mathematical tablet,” Sangaku puzzles are named for ancient devotional tablets seen at Shinto shrines. Sangaku is now a hit in Japan. These tablets were not only an offering to the shrine, but a challenge to other viewers. This challenge extends into the present day, where players will be inspired to consider the mystery of numbers—the magic of which penetrates “the core of our material universe and into the heart and soul of our human understanding.” With more than two hundred puzzles, Sangaku #2 will keep you and your friends amused for hours, sharpen your math skills, and change the way you think about numbers. It’s the perfect time-killer for puzzle lovers of every age and skill level.

While major retailers like Amazon may carry Sangaku #2 (Professor Hill Presents the World's Greatest Number Puzzles!), we specialize in bulk book sales and offer personalized service from our friendly, book-smart team based in Portland, Oregon. We’re proud to offer a Price Match Guarantee and a streamlined ordering experience from people who truly care.

We’re trusted by over 75,000 customers, many of whom return time and again. Want proof? Just check out our 25,000+ customer reviews—real feedback from people who love how we do business.

Prefer to talk to a real person? Our Book Specialists are here Monday–Friday, 8 a.m. to 5 p.m. PST and ready to help with your bulk order of Sangaku #2 (Professor Hill Presents the World's Greatest Number Puzzles!).