Sudoku 500 Hard Puzzles: Geisha Series Book

Addicted to Sudoku? With 500 puzzles in this Geisha Series book by Katsumi this is the perfect book for some serious sudoku solving.

Book 14 in this series contains all hard/advanced puzzles. Four puzzles per page gives plenty of space for notes and all the solutions are printed at the end of the book.

Turn off the television and burn up some brain power instead!