TKL Sudoku - Challenging Puzzles

I have printed a book of 128 challenging Sudoku puzzles. It contains tips on how to solve Sudoku puzzles, explains how the puzzles are generated and also gives a history of Sudoku. The book is available for $7.90 from www.easyapps.sg/ishop. Other books on the intelligence (Einstein) quiz and shape quiz (T puzzles) are also available. Watch this video.

Please help to promote these books to your friends or buy them as gifts for your family or friends.

http://www.google.com/search?q=cheyenne+shape+quiz&rls=com.microsoft:en-sg:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7ADBR