TKL Sudoku Vol 2

This book of challenging puzzles is now available for sale. Vol 2 has 128 unique puzzles. It replaced Vol 1 (which had many repeated puzzles).

I did about 50 puzzles and take from 4 mins to 10 mins. Most of the puzzles were done in 6 mins. Can you beat this? Give it a try.

To order: www.easyapps.sg/ishop

You can also buy the book at 7-11 convenient stores, Popular book stores and other major bookstores.