## Thursday, December 29, 2016

Jigsaw Sudoku is also known as Irregular Sudoku. This is the Sudoku type I used to fear a lot when initial I was introduced to it. However now a days I found Irregular Sudoku as very interesting Sudoku variation. One should be aware of In=Out technique of solving Irregular Sudoku which is must for solving any tough Sudoku of this type.
Today's puzzle is milestone Sudoku for Daily Sudoku League as today I am posting my 200th contribution in this league. It was hardly any week which I missed when I started posting for this league. A big thank to Prasanna who solve all my puzzles on time and providing me valuable feedback which helped me to improve my puzzle creating skills.
Special thanks to Kishore and Ashish for today's Sudoku posting as I was having 3 puzzles for today's post. However these puzzles were not tested. Thanks to both Kishore and Ashish for testing these puzzles quickly and making sure that I don't miss my 200th post in Daily Sudoku League.
Today's Jigsaw Outside Sudoku, I am posting in  as 200th Sudoku puzzle in this series.
Rules of Jigsaw Outside Sudoku Puzzle
Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and outlined region. Each outlined region is marked by thick borders. Additionally the digits outside the grid must appear in one of the first three cells seen from that edge of the grid.

Following is solution of Jigsaw X-Sums Sudoku puzzle, which is published with title Jigsaw X-Sums Sudoku Puzzle (Fun With Sudoku 258)
 Jigsaw X-Sums Sudoku (Fun With Sudoku 258) Puzzle Solution