The title of the book has now been changed to "Discover: Find the Hidden Code". A free sample book is available for download. The puzzles in the book are now checked to have unique answers. You can place an order for the book now.
http://tankinlian.com/Admin/File.aspx?ID=711&Frame=1
The benefit from the book - develop your skill in logic and problem solving. This is a skill that Singaporeans are weak at, especially the young ones, and should be strengthened.
http://tankinlian.com/Admin/File.aspx?ID=711&Frame=1
The benefit from the book - develop your skill in logic and problem solving. This is a skill that Singaporeans are weak at, especially the young ones, and should be strengthened.
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