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Online Sudoku Puzzle - Medium

Sudoku (so͞o dōko͞o') puzzles, despite their Japanese name, were not actually invented in Japan. According to the history note in Wikipedia, they first appeared in France, and then popularized in America. To wit: "The modern Sudoku was most likely designed anonymously by Howard Garns, a 74-year-old retired architect and freelance puzzle constructor from Connersville, Indiana, and first published in 1979 by Dell Magazines as Number Place (the earliest known examples of modern Sudoku)." The word in Japanese, 数独, means "digit-single." Regardless of its origins, Sudoku is an immensely popular game today. My older sister, Gayle, is a Sudoku fanatic (the full version of the word "fan," meaning enthusiast; i.e., she's a fan of Sudoku).


Reproduction of this puzzle without the express permission of RF Cafe is prohibited. Merci to Live Sudoku for providing this.

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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright:
1996 - 2024

Webmaster:

Kirt Blattenberger,

BSEE | KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

Copyright  1996 - 2026

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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RF Cascade Workbook 2018 by RF Cafe

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