Professor Hill Presents the World's Greatest Number Puzzles!
by
James D. Hill
Language: English
Release Date: January 7, 2014
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...