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Puzzled over Sudoku? He can help

Eraser-free Sudoku guru Merl Reagle uses all logic and his quirky sense of humor to help create one of the world's most popular games.

By CURTIS KRUEGER
Published January 18, 2007


Merl Reagle's Eraser-free Sudoku game, which is a number-based puzzle, is published in newspapers across the country. He is pictured with one of his many crossword puzzles displayed in his Carrollwood home.
  • Interactive Eraser-free Sudoku strategies
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    [Times file photo (2005): Chris Zuppa]
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    Merl Reagle has a head full of letters and words, and a mind that loves to play with them.

    He made his first crossword puzzle at age 6, using the names of first-grade classmates, and never stopped.

    He has created at least one crossword each week for the past 21 years and published them in The New York Times and many other newspapers.

    Reagle, 56, lives in Carrollwood and was featured in last year’s crossword puzzle feature-length documentary Wordplay.

    Which raises a question: How did a word wizard turn into a numbers guy?

    “It doesn’t make sense does it?’’

    Reagle has become a lover of sudoku, a game that uses only numbers, because, “I find them incredibly interesting... it’s a test of your ability to do something with no mistakes.’’

    In fact, he creates sudokus with a colleague, and sells them to several newspapers including the St. Petersburg Times.

    So now Reagle has another job: sudoku sage. He will appear at 9 a.m. Saturday at the St. Pete Beach Library, 365 73rd Ave., to discuss how to solve sudoku puzzles.

    He also offers more advice on his web site, www.sundaycrosswords.com/sudokushop. By letting people in on some simple sudoku strategies, he hopes to create even more interest in the game.

    Sudoku is a numbers game which was invented in the United States, became popular in Japan and Europe, and in the past couple years has won thousands of fans in the United States. You can find sudokus in newspapers, on web sites and even on hand-held computer games.

    Sudoku offers none of the opportunity for wordplay that crosswords do. And Reagle is the kind of person who loves esoteric properties of words, like the fact that  “level’’ and “radar’’ are spelled the same way forwards and backwards.

    And because his sense of humor is almost as quirky as the English language, Reagle even makes wordplay about wordplay: “Race car’’ is spelled the same way in forward and reverse.

    All kinds of knowledge go into good crossword puzzles -- geography, history, trivia, vocabulary, and humor.
    But sudoku is pure logic.

    Sudoku is played on a grid of 81 squares, divided into nine boxes of nine squares each. The player makes sure that each row, each column and each box of nine squares contain the numbers 1 through 9 once and only once.

    Each sudoku has only one solution, and one single mistake will throw the whole page out of whack.

    “It’s a unique answer, no guessing, no math involved, no guessing, just logic,’’ Reagle said. And each puzzle inherently asks the same question: “Can I do this and do it without any mistakes? Because... it’s suicide if you do make mistakes. It’s unforgiving.’’

    Ask Reagle about making crossword puzzles, and he sounds like a stained-glass artist proud of the creativity he fits into a rigidly defined frame. But this is another difference with sudokus.

    Reagle’s sudokus are generated by computer, thanks to a program developed by his friend and neighbor, Dennis Aramanda.

    Instead of lovingly constructing them, Reagle’s main work with sudokus has been to design his “eraser-free’’ format and also to test them to make sure they are really easy, medium or hard, as advertised.

    [Last modified January 18, 2007, 19:40:51]


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    Comments on this article
    by Anna 02/19/08 01:48 PM
    Last year I started playing sudoku and I love it,can't wait until the Times comes in the morning.
    by chuck 08/23/07 03:13 PM
    I find medium puzzles harder than hard ones. Why?
    by BOBIS 02/21/07 08:26 PM
    I NEEEEEEEEEEEED TO FINISH HARD SUDOKUS
    by Evelyn 02/09/07 08:39 PM
    I have never played the game how do I start give a clue what I need to do.
    by harriet 01/26/07 07:50 PM
    thanks for he audio.I wil tackle them again. I even find truth tables difficult. this will help.
    by Shirley 01/24/07 03:53 PM
    Just as he was getting to the twins and triplets, the video stopped. That is the part I am interested in.
    by john 01/23/07 12:52 PM
    I am sorry I could not participate in last weeks workshop. Is there any site that will give me more strategy in figuring hard sadokus. tough to get started
    by Walter 01/20/07 01:11 PM
    This was good but..... it didn't seem to have a finish???
    by Joe 01/20/07 10:48 AM
    I have not found a sudoku puzzle I have not been able to solve. Any chance at coming out with a "very hard" rating?
    by Sam 01/19/07 06:22 PM
    good, BUT only for easy. how about harder ones where 3 numbers can be used to complete puzzle in 3 places. what is the logic besides guessing?
    by Ann 01/19/07 04:02 PM
    Difficulty rating for Sudoku are NOT logical. Why?
    by Michael 01/19/07 01:18 PM
    Very informative about the author, but wish there was at least one hint at strategy to solve. I also feel some puzzles are rated unfair.
    by joyce 01/19/07 01:15 PM
    I agree with Elinor. Sometimes when they say "hard" they're actually very easy and visa versa.
    by Joan 01/19/07 09:41 AM
    I, too, would have liked one secret strategy. I cannot get to your talk on Saturday.
    by tom 01/19/07 07:08 AM
    Good story. Well written. Could have given a hint of at least one sudoku secret strategy.
    by Elinor 01/19/07 12:26 AM
    I do the Sudoku every day. But I find that your ratings of easy, medium, and hard are sometimes wrong. Are the ratings that reliable?
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