Bob Newell

The World's Most Widely Read Checkers and Draughts Publication
Bob Newell, Editor-in-Chief


Published every Saturday morning in Honolulu, Hawai`i

Noticing missing images? An explanation is here.



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What's New

A new seven-part serial Marvin J Mavin: Corruption is underway at the Checker Maven site.

12/18/22
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Welcome to BOBNEWELL.NET

About Us

Based in Honolulu, Hawai`i, the BobNewell.Net website offers a variety of entertaining and educational material on a range of subjects, from checkers to Emacs to Talmud. Comments, questions, and suggestions are welcome; just contact the Webmaster.

Read The Checker Maven

Don't miss The Checker Maven, a weekly checker webzine now in its 22nd year, and which by any measure is the world's most widely read periodical checkers publication specializing in the version of the game as typically played in the UK and America. A major emphasis of The Checker Maven is on unique checker fiction, typically featuring two new stories every month and occasional multi-part serials. Other features include Checker School, Speed Problems, and much more.

01/20/06
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What's New

Scrambler, a word board game with similarities to that proprietary game we all know so well, is a rewrite of a 1992 Linux-only, ASCII-only text mode game. I've added tons of new features, including GCG output, position analysis, save/restore, and more. Get it here:

http://www.bobnewell.net/filez/scrambler.zip

Now available, the simplest text mode database ever. Get Cheebu here:

http://www.bobnewell.net/filez/cheebu.

My second novel, Hanai has been released in both print and ebook form. It's Jane Austen's Mansfield Park retold in contemporary Hawai`i. What happens when a poor native girl from the Wai`anae Coast is adopted by a wealthy movie-star couple in Kahala? The novel is as much a commentary on class and racial divides as it is a contemporary romance.

I've got a new Jimmy Chan story in the fine anthology Dark Paradise: Mysteries in the Land of Aloha, available from Amazon. This time Jimmy gets in way over his head in a case of international espionage.

My book of checker stories is out and available on CreateSpace and Amazon! Mr. Darcy Plays Draughts, and Other Stories: The Checker Fiction of Bob Newell is a collection of nine novelettes and short stories culled from the pages of The Checker Maven webzine, as well as the all-new title story and an introductory poem. The book would make a great gift for checker fans, Jane Austen buffs, and anyone with an interest in fiction with a unique and unusual theme. This is the world's first and only collection of checker fiction and is sure to please.

Courting Jane, a time-travel romance and my first novel, is available on Amazon in both print and ebook formats. Join Jonathan Kinsey as he crosses two oceans and two centuries in the search for the love of his life, none other than Jane Austen herself.

If you have an interest in Emacs, check out my latest and ongoing series of postings under the title 35 Years of Emacs as linked in the sidebar.

Our scoresheet package, found here, now has Skat scoresheets in addition to the chess, checkers, and go scoresheets.

01/20/06
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Winning Probabilities from ELO Ratings

This form calculates the theoretical probability of winning a game based on ELO ratings. This generally applies to chess but also works for any game with ratings based on the USCF implementation of the ELO system.

DISCONTINUED

04/27/05
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Single-Game ELO Calculations with Exact USCF Formula

This form calculates the estimated changes in an ELO rating, for a single game, using the exact, not the approximate, USCF formulas. The rating is still estimated, though, because the USCF calculations consider an entire tournament at once, is done in two passes and
requires the complete tournament cross-table.

If an event is half-K, check the appropriate box; likewise if all of your prior tournament games were wins or losses, check the matching box.

Prior rating
Prior number of rated games
Opponent's rating
Half-K event?
All losses in prior rated games?
All wins in prior rated games?

04/04/05
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Exact Formula Post-Tournament ELO Rating Calculations

This form calculates estimated post-tournament ELO ratings using the exact, not the approximate, USCF formulas. The rating is still estimated, though, because the USCF calculation is done in two passes and requires the complete tournament cross-table.

In the results box, enter your tournament results, game by game, using 'w' for win, "l" for loss, and "d" for draw, and then giving the opponent's rating. Leave a space between each game. So if you won a game against a 1313 player followed by a loss to a 2090 player and a draw with a 1589 player, enter

w1313 l2090 d1589

If the event is half-K, or you played the same opponent more than once, check the appropriate box; likewise if all of your prior tournament games were wins or losses, check the matching box.

Prior rating
Prior number of rated games
Results
Half-K event?
Played any opponent more than once?
All losses in prior rated games?
All wins in prior rated games?

04/03/05
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Mr. Fred Investments

Mr. Fred Investments has ceased operations, although the name and its copyright have been retained. Avi Gobbler Publishing, the successor to Avi Gobbler Productions, now operates independently.

All other divisions of Mr. Fred Investments, including Avi Gobbler Consulting and Futrezo Software Solutions, have been closed. The online publications Bungerting Baloner, Waikiki Wanderer, and O`ahu Dining Information, have all been discontinued.

The Checker Maven continues to be published by Avi Gobbler Publishing. Books and other materials previously published by Avi Gobbler Productions or Mr. Fred Investments are now under the aegis of Avi Gobbler Publishing.

04/01/05
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Mr. Fred Properties

Mr. Fred Properties is an internal division of Mr. Fred Investments formed to provide real estate trading and rental management services to the parent company. Mr. Fred Properties is not licensed for service to the public and is not a licensed realty company.

10/05/04
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Avi Gobbler Consulting

Avi Gobbler Consulting is a division of Mr. Fred Investments. Avi Gobbler Consulting provides high-end information management consulting services on an hourly or engagement basis. Engagements with strategic content are preferred but limited-term tactical engagements will be considered on a case-by-case basis.

The company's principal has more than 30 years of information management and technology experience, including over 20 years at the senior level, and brings an extensive and deep knowledge and background to each consulting engagement.

For further information please write to avigobblerconsulting@bobnewell.net. Serious inquiries only, please.

10/05/04
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Mr. Fred Financials

Mr. Fred Financials is an internal subsidiary of Mr. Fred Investments formed to provide internal financial services to the parent company. No services to the public are provided at this time. Mr. Fred Financials is not a licensed financial services provider or trader.

10/05/04
You can email the Webmaster with your comments on this article.

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The Checker Maven is produced at editorial offices in Honolulu, Hawai`i, as a completely non-commercial public service from which no income is obtained or sought. Original material is Copyright © 2004-2026 Avi Gobbler Publishing. Other material is public domain, AI generated, as attributed, or licensed under CC1, CC2, CC3 or CC4 and the various CC options. Information presented on this site is offered as-is, at no cost, and bears no express or implied warranty as to accuracy or usability. You agree that you use such information entirely at your own risk. No liabilities of any kind under any legal theory whatsoever are accepted. The Checker Maven is dedicated to the memory of Mr. Bob Newell, Sr.

MAVEN, n.:

An expert or connoisseur, often self-proclaimed.


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A Mind Sport for the Common Man

Learning Checkers

The Unknown Derek Oldbury

Rediscovering Checkers

Regulation Checker Sets

Marvin's World

Downloads


Richard Pask Publications

Reisman: Checkers Made Easy

Clapham Common Draughts Book

Grover/Wiswell: Let's Play Checkers

Bob Murray's School Presentation

Jim Loy Publications

PDN collections

Oldbury: MoveOver

Reinfeld: How to Win

Ginsberg: Principles of Strategy

Draughts Books of the 20th Century

3-Move-Deck