When you were in NTUC, you produced the book Logic 9. I find them to be quite fun to use, especially for me to try the game when I travel. Where can I buy the book?
REPLY
It is now out of stock. Most people now play Sudoku (which is the commonly known name of the game) on their mobile device. So the Logic 9 booklet is just history.
If you like to learn the skill of playing the game, here is an e-book that gives you the tips on how to be a Sudoku expert. And it is easy to follow. No difficult mathematics. Just simple daily practice. And enjoy.
http://c-pearl.com/cart.aspx?ID=4
This is a useful pastime for elderly people to keep their mind alert and free from dementia. And they can choose a simple level - and really enjoy the game.
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