The participants must solve a series of different types of chess problem in a set amount of time. Points are awarded for correct solutions in the least amount of time. The highest score at the end of the competition is proclaimed the winner.
Team Championship – To qualify as an official team world championship, there must be at least seven teams from seven countries present. This section has grown from nine teams in 1977 to now averaging 20.
Individual – Likewise, for an official individual world championship to take place, 30 solvers from at least 10 countries must participate. This number too has grown from 18 in 1977 to well over 70 in the past six years (as of 2007).
Women and Juniors (up to 23 years old) – This event only requires 10 solvers from at least seven countries.
Ratingedit
Formulasedit
We assume that the tournament has n solvers, with ratings (i = 1, ..., n) and in the tournament their scores are (i = 1, ..., n).
For players who didn't already have a rating, a preliminary rating is calculated. This rating is determined at the end of the first tournament in which the solver has participated. The formula that is used to calculate this rating is:
preliminary rating =
For players who already have a rating, the new rating is calculated as follows.
Rat = most recent rating of the solver
ExpSco =
TC = tournament coefficient, a number between 1 and 4; when the tournament is stronger, the TC is higher
ChangeRat =
NewRat = new rating =
These formulas are the defaults. If parameters fall outside a predetermined range, correction calculations are being carried out. These can be found in the reference.[1]
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The World Chess Solving Championship WCSC is an annual competition in the solving of chess problems also known as chess puzzles organized by the World Federation for Chess Composition WFCC previously by FIDE via the Permanent Commission of the FIDE for Chess Compositions PCCC The participants must solve a series of different types of chess problem in a set amount of time Points are awarded for correct solutions in the least amount of time The highest score at the end of the competition is proclaimed the winner Contents 1 Format 2 Sections 3 Rating 3 1 Formulas 3 2 Rating list in 2015 3 3 Rating list in 2023 4 Winners 4 1 Team competition 4 2 Individual competition 5 ReferencesFormat editThe Tournament consists of six rounds over two days with three rounds each day according to the following table Round 1 3 twomovers 20 minutes solving time Round 2 3 threemovers 60 minutes solving time Round 3 3 endgame studies 100 minutes solving time Round 4 3 helpmates 50 minutes solving time Round 5 3 moremovers 80 minutes solving time Round 6 3 selfmates 50 minutes solving timeSections editTeam Championship To qualify as an official team world championship there must be at least seven teams from seven countries present This section has grown from nine teams in 1977 to now averaging 20 Individual Likewise for an official individual world championship to take place 30 solvers from at least 10 countries must participate This number too has grown from 18 in 1977 to well over 70 in the past six years as of 2007 Women and Juniors up to 23 years old This event only requires 10 solvers from at least seven countries Rating editFormulas edit We assume that the tournament has n solvers with ratings R i displaystyle R i nbsp i 1 n and in the tournament their scores are S i displaystyle S i nbsp i 1 n AveRat average rating of the solvers AveSco average score of the solvers VarRat 1 n i 1 n R i AveRat 2 displaystyle frac 1 n sum i 1 n R i mbox AveRat 2 nbsp Covar covariance between ratings and scores 1 n i 1 n R i S i AveRat AveSco displaystyle frac 1 n sum i 1 n R i S i mbox AveRat cdot mbox AveSco nbsp Slope Covar VarRat displaystyle frac mbox Covar mbox VarRat nbsp Intercept AveSco Slope AveRat displaystyle mbox AveSco mbox Slope cdot mbox AveRat nbsp For players who didn t already have a rating a preliminary rating is calculated This rating is determined at the end of the first tournament in which the solver has participated The formula that is used to calculate this rating is preliminary rating Score of player Intercept Slope displaystyle frac mbox Score of player mbox Intercept mbox Slope nbsp For players who already have a rating the new rating is calculated as follows Rat most recent rating of the solver ExpSco Slope Rat Intercept displaystyle mbox Slope cdot mbox Rat mbox Intercept nbsp TC tournament coefficient a number between 1 and 4 when the tournament is stronger the TC is higher ChangeRat TC Score of player ExpScore displaystyle mbox TC cdot mbox Score of player mbox ExpScore nbsp NewRat new rating Rat ChangeRat displaystyle mbox Rat mbox ChangeRat nbsp These formulas are the defaults If parameters fall outside a predetermined range correction calculations are being carried out These can be found in the reference 1 Rating list in 2015 edit October 1st 2015 Top 10 2 GM Georgy Evseev Russia 2785 GM Kacper Piorun Poland 2744 GM Piotr Murdzia Poland 2742 GM John Nunn United Kingdom 2716 GM Ram Soffer Israel 2667 GM Eddy Van Beers Belgium 2632 GM Anatoly Mukoseev Russia 2631 GM Arno Zude Germany 2626 GM Jonathan Mestel United Kingdom 2595 GM Ofer Comay Israel 2594Rating list in 2023 edit July 1st 2023 Top 10 3 GM Danila Pavlov Russia 2776 GM Georgy Evseev Russia 2747 Andrei Zhuravlev Russia 2683 GM Piotr Murdzia Poland 2661 GM Kacper Piorun Poland 2645 GM Eddy Van Beers Belgium 2636 GM John Nunn United Kingdom 2630 GM Ram Soffer Israel 2604 IM Ural Khasanov Russia 2602 Kevinas Kuznekovas Lithuania 2567Winners editTeam competition edit 1977 nbsp Finland 1978 nbsp Finland 1979 nbsp West Germany 1980 nbsp Israel 1981 nbsp Finland 1982 nbsp Yugoslavia 1983 nbsp Finland 1984 nbsp Finland 1985 nbsp Finland 1986 nbsp Great Britain 1987 nbsp West Germany 1988 nbsp West Germany 1989 nbsp Soviet Union 1990 nbsp Great Britain and nbsp Soviet Union 1991 nbsp Soviet Union 1992 nbsp Russia 1993 nbsp Germany 1994 nbsp Germany 1995 nbsp Finland 1996 nbsp Israel 1997 nbsp Israel 1998 nbsp Israel 1999 nbsp Russia 2000 nbsp Germany 2001 nbsp Israel 2002 nbsp Germany 2003 nbsp Russia 2004 nbsp Israel 2005 nbsp Great Britain 2006 nbsp Great Britain 2007 nbsp Great Britain 2008 nbsp Russia 2009 nbsp Poland 2010 nbsp Poland 2011 nbsp Poland 2012 nbsp Poland 2013 nbsp Poland 2014 nbsp Poland 2015 nbsp Poland 2016 nbsp Poland 2017 nbsp Poland 2018 nbsp Poland 2019 nbsp Poland 2021 nbsp Russia 2022 nbsp PolandIndividual competition edit 1983 Roland Baier Switzerland 1984 Kari Valtonen Finland 1985 Ofer Comay Israel 1986 Pauli Perkonoja Finland 1987 Michel Caillaud France 1988 Michael Pfannkuche Germany 1989 Georgy Evseev USSR 1990 Georgy Evseev USSR 1991 Georgy Evseev USSR 1992 Pauli Perkonoja Finland 1993 Michael Pfannkuche Germany 1994 Arno Zude Germany 1995 Pauli Perkonoja Finland 1996 Noam Elkies Israel 1997 Jonathan Mestel Great Britain 1998 Georgy Evseev Russia 1999 Ofer Comay Israel 2000 Michel Caillaud France 2001 Jorma Paavilainen Finland 2002 Piotr Murdzia Poland 2003 Andrey Selivanov Russia 2004 John Nunn Great Britain 2005 Piotr Murdzia Poland 2006 Piotr Murdzia Poland 2007 John Nunn Great Britain 2008 Piotr Murdzia Poland 2009 Piotr Murdzia Poland 2010 John Nunn Great Britain 2011 Kacper Piorun Poland 2012 Piotr Murdzia Poland 4 2013 Piotr Murdzia Poland 5 2014 Kacper Piorun Poland 2015 Kacper Piorun Poland 2016 Kacper Piorun Poland 2017 Kacper Piorun Poland 2018 Piotr Murdzia Poland 2019 Piotr Gorski Poland 6 2021 Danila Pavlov Russia 2022 Danila Pavlov Russia References edit Solvers Rating www wfcc ch Solvers Rating 01 10 2015 solving wfcc ch Solvers Rating 01 07 2023 solving wfcc ch World Chess Solving Championship 2012 in Kobe 17 October 2012 37th World Chess Solving Championship WFCC 43rd World Chess Solving Championship WFCC Retrieved from https en wikipedia org w index php title World Chess Solving Championship amp oldid 1177880231, wikipedia, wiki, book, books, library,
