# [Surfnetkids: 29 Mar 2006] Sudoku Tips

Surfing the Net with Kids FREE Newsletter
http://www.surfnetkids.com/emailedition.htm

1. Introduction
3. Weekly Topic: Sudoku Tips
5. Note from a Printables Club Member
6. Related Games
7. Quote of the Week
9. Subscription Management

#1. March 29, 2006

Dear Barbara,

I chose today’s topic (Sudoku Tips) because it ties in with our newest Surfnetkids game, and it would give me a nice opportunity to say … Tah Dah! Drumroll please!

Daily Surfnetkids Sudoku Puzzle
http://www.surfnetkids.com/games/sudoku.htm

Our puzzle has five different levels from easy to grandmaster, five new games every single day, and can be played interactively (with or without hints) or printed out and played with a pencil.

For Premium Printables Club members, I have created a free printable download of “101 Easy Sudoku Puzzles” perfect for use in the classroom or at home.

101 Easy Sudoku Puzzles
http://www.surfnetkids.com/printables/101suduko.pdf

If you are not yet a member, you can join now, get “101 Easy Sudoku Puzzles,” and have risk-free Printables Club access for ten days before we charge you a penny.

Surnetkids Printables Club 10-day Risk-Free Trial
http://www.surfnetkids.com/printables-club.htm

See ya on the Net,
Barbara J. Feldman
"Surfing the Net with Kids"
http://www.surfnetkids.com

http://www.surfnetkids.com/printables-club.htm

#3. Sudoku Tips

by Barbara J. Feldman
http://www.surfnetkids.com/sudoku_tips.htm

Sudoku Tips Printable (** for premium members only)
http://www.surfnetkids.com/printables/sudoku_tips.pdf

Sudoku is a logic-based number puzzle that does not involve arithmetic. Although first published in an American puzzle magazine in 1979, Sudoku gained popularity in Japan in 1986 before becoming an international craze in 2005. The goal is to enter a numerical digit from 1 through 9 in each cell of a 9×9 grid, without repeating a number in any row, column, or 3×3 sub-grid. After picking up some on tips at the following sites, you can try your skills at the Surfnetkids Daily Sudoku Puzzle ( http://www.surfnetkids.com/sudoku/ ).

Paul’s Pages: How to Solve Sudoku
http://www.paulspages.co.uk/sudoku/howtosolve/

British journalist Paul Stephens explains the Sudoku-solving techniques of crosshatching (eliminating rows and columns), slicing and dicing (a different way to look at crosshatching), and penciling in. When you’ve solved as much of the puzzle as you can using these three techniques, Paul recommends that you “start finding numbers for squares instead of squares for numbers” by applying five rules. He summarizes it all by offering three keys to successful Sudoku solving: total accuracy, completeness, and maintenance.

Puzzle Japan: Keys to Solution for Sudoku
http://www.puzzle.jp/keys/sudoku_keys-e.html

Japanese puzzle magazine Nikoli divides their Sudoku lessons into twelve classes. Starting at Beginner’s Class 1, Puzzle Japan provides lots of examples of crosshatching (without labeling it as such.) Their English is rough in a few spots, but the quality and quantity of the animated illustrations make this a great site for visual learners and K-6 students. “Little by little complicated, but don’t worry.”

Solving Sudoku
http://www.sudoku.org.uk/PDF/Solving_Sudoku.pdf

This eleven-page free PDF ebook from Michael Mepham of the Daily Telegraph requires the free Adobe Reader ( http://www.adobe.com/products/acrobat/readstep2.html ). For solving really difficult puzzles, it introduces methodological analysis and bifurcation, “the technical terms for picking a likely pair of numbers, choosing one and seeing where the number you have chosen gets you.” It is an excellent resource for high-school students and adults, but does make reference to “a couple of slugs of scotch at the pub,” so it may not be appropriate for every audience.

… to continue reading, visit Surfnetkids: Sudoku Tips.

Got a website? Want the code to link directly to this week’s column? Here ya go:

For more link options (including daily content applets and RSS feeds) see:
http://www.surfnetkids.com/daily.html

#5. Note from a Printables Club Member

“Gotta tell you I am pretty impressed. I have subscribed to your newsletter via email for I’m guessing 4 years or so. I noticed improvements in the premium newsletter almost immediately. I am VERY impressed with the printables that are part of the printables website—I have printed many and am intending to have these available for parents at conferences in a few weeks! Thanks for the improvements you are making…..the printables club is a great idea!!!”
Eileen Balagna,
Thomas Jefferson Middle School,
Port Washington, WI

**Printables Club members get 6 to 9 recommended sites (instead of the 3 included in this free newsletter) and
oodles of additional educational content with the Surfnetkids
http://www.surfnetkids.com/printables-club.htm

#6. Related Games

Daily Sudoku Puzzle
http://www.surfnetkids.com/games/sudoku.htm

(Learn how to make kids games just like this with my How to Add Games to Your Site step-by-step manual.)

#7. Quote of the Week

“If we did all the things we are capable of doing, we would literally astonish ourselves.” ~~ Thomas Edison (1847 – 1931) American inventor

http://www.surfnetkids.com/related.php?t=Thomas+Edison

Daily Education Quote via Email
http://www.surfnetkids.com/quotations/

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Online games turn ordinary school assignments into interactive fun.
Show your kids how to author word searches, jigsaws and
crossword puzzles.

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http://surfnetkids.com/own_your_paycheck_again.htm

FUN GIFT IDEA: Puzzle Clonzz jigsaw paper for printing
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http://surfnetkids.com/puzzleclonzz.htm

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#9. Subscription Management

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