Sudoku. Lesson 23. Review. The swordfish pattern 

#sudokuguy #sudoku #learnsudoku
For FAQ go to my web site www.sudokuguy.com
The swordfish is difficult to spot. It requires you to put all possible numbers in empty cells, which is a lot of work.
Watch for monthly tutorials When you subscribe you will be notified when a new tutorial is uploaded.
This puzzle can be solved without the swordfish. Look at this video as a demonstration of the swordfish. It is possible to solve this puzzle without using the swordfish technique. I used this puzzle to demonstrate how to spot a swordfish pattern.
It has been pointed out that ta 2.30 I could have eliiminated the 6 at the top due to a 6 being below.. Thanks to "reconllc" for letting me know. I should have explained the blocks 1 2 and 3 and left out the rest of the numbers below. Also you will probably see that I put 2 ones in block 8. My mistake. It doesn't change the secenario however. the ones could have easily be left out of the scenario.
NEW you can now go to my web site and see an INDEX OF VIDEOS under strategy headings. Clcik on the number and it will take you to the video of interest. www.sudokuguy.com
For all lessons and tutorials go to: / sudokuguy
*ATTENTION TEACHERS: A great resource. PowerPoint lessons, activities, and videos available in a teaching format on Teachers Pay Teachers. www.teacherspa...
Facebook: Sudoku Guy / sudoku-guy-66958434978...