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  1. #91
    Monster of the deep Kevin Bonham's Avatar
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    A few other things worth bearing in mind for those trying to crystal-ball possible ratings changes:

    * The ratings system uses intermediate ratings for performance calculations (I haven't done this above) so your rated opponent counts as somewhere between their previous rating and their performance rating for the period being rated. Players most likely to benefit from this include Little, Amos and Shepherd.

    * Games played against unrated opponents have relatively little impact on your rating but their internal ratings will be affected by other tournaments as well. This especially concerns Banbury who performed at >1700 in last year's Tas Open, but others with internal ratings that will be different include Keerthiratne (somewhat higher) and Ocoleanu (somewhat lower).
    Last edited by Kevin Bonham; 09-03-2021 at 06:08 PM.
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  2. #92
    CC Grandmaster Tony Dowden's Avatar
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    Quote Originally Posted by Kevin Bonham View Post
    ... Games played against unrated opponents have relatively little impact on your rating ...
    I had always thought games against unrated players had zero impact on one's rating. Or am I wrong?
    Fischer visiting Tal in hospital - Curaçao 1962

    "You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one." - Mikhail Tal
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  3. #93
    Monster of the deep Kevin Bonham's Avatar
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    Quote Originally Posted by Tony Dowden View Post
    I had always thought games against unrated players had zero impact on one's rating. Or am I wrong?
    This is not the case in the ACF's implementation of the Glicko-2 system. Unrated players do have some impact provided that some kind of performance can be calculated for them (for very weak unrated players this is sometimes impossible, eg those who have lost every rated game). The system stores an internal rating estimate but these estimates are not published as they are too unreliable to use for purposes like seedings, selections and ratings prizes.
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  4. #94
    CC Grandmaster Tony Dowden's Avatar
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    Thanks for explaining Kevin. The Glicko system never fails to surprise me!

    Congrats on another Tasmanian Championship title too Your seven titles has edged ahead of my six. You have some work to do to overtake Otto Weber's 13 titles though!
    Fischer visiting Tal in hospital - Curaçao 1962

    "You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one." - Mikhail Tal
    "Best by test" (on 1.e4) - Bobby Fischer

  5. #95
    CC Grandmaster Capablanca-Fan's Avatar
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    Quote Originally Posted by Blunderbuss View Post
    I think Addison has taught me a valuable lesson here. The short version of which is ‘Don’t Panic’.

    The longer version, having survived a crazy opening I had a platform to strike back via rooks on an open file. But after playing 23 Rxb6 I hadn’t considered the reply f5. At this crux moment my confidence collapsed thinking that I had blundered – I then proceeded to blunder by not finding Rc6.

    This is the same thing that happened to me last night. At the crucial moment thinking I don’t understand the position I panic. In both cases I had plenty of time in hand (in this game well over an hour), so why not get up from the board go for a walk and come back with a clear head.
    Hindsight is a wonderful thing.

    Chris – Addison R6

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    The only real move is 2.dxe5.
    “The history of the 20th century is full of examples of countries that set out to redistribute wealth and ended up redistributing poverty.”
    “There’s no point blaming the tragedies of socialism on the flaws or corruption of particular leaders. Any system which allows some people to exercise unbridled power over others is an open invitation to abuse, whether that system is called slavery or socialism or something else.”—Thomas Sowell

  6. #96
    CC FIDE Master Blunderbuss's Avatar
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    Quote Originally Posted by Capablanca-Fan View Post
    The only real move is 2.dxe5.
    Yes, but I recalled that Addison had a famous 8 move win with the Englund Gambit the previous year 2020-Tasmanian-Championships

    Which I think influenced me to decline the gambit. But as played it was white who gives up a pawn for nothing

  7. #97
    CC Grandmaster Capablanca-Fan's Avatar
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    Punishing the Englund Gambit: some options

    Quote Originally Posted by Blunderbuss View Post
    Yes, but I recalled that Addison had a famous 8 move win with the Englund Gambit the previous year 2020-Tasmanian-Championships

    Which I think influenced me to decline the gambit. But as played it was white who gives up a pawn for nothing
    Yes, not the best start. Here are some ideas:

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    “The history of the 20th century is full of examples of countries that set out to redistribute wealth and ended up redistributing poverty.”
    “There’s no point blaming the tragedies of socialism on the flaws or corruption of particular leaders. Any system which allows some people to exercise unbridled power over others is an open invitation to abuse, whether that system is called slavery or socialism or something else.”—Thomas Sowell

  8. #98
    CC FIDE Master Blunderbuss's Avatar
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    Thanks. As it happens, I noticed this lesson in my chess.com feed today: refuted-englund-gambit which agrees with your analysis.

    GM Eugene Perelshteyn is back with a guide to refute another gambit. The Englund Gambit is unsound, but popular in fast time controls. Take a look and never get tricked by this opening again.

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