13 October 2021

2021 World Cup Wrapup

In the previous post -- see the last entry in the table below, 'Player Indices', for a link and see that post for links to the two World Cup pages under discussion -- I promised to add PGN files to both pages. Done & done.

Before adding the PGN, I cleaned up some name mismatches. The discussion after the table provides some details. The table summarizes the effort required to document a World Cup on my site, where I always build a page from the PGN game scores for the event. The table covers two recent World Cup events held concurrently: (1) unrestricted by gender, and (2) women only.

Post U W
2021-08-04: TWIC Documents Chess History Y Y
2021-08-11: A New Cycle Is Evolving Y Y
2021-08-18: 2021 World Cup Tiebreak Y -
2021-08-25: 2021 World Cup [Name] Mismatches Y -
2021-09-15: 2021 World Cup Crosstables Y -
2021-09-22: 2021 Women's World Cup Preparation - Y
2021-09-29: 2021 Women's World Cup Crosstables - Y
2021-10-06: 2021 World Cup Player Indices Y Y

In brief, here are the steps required for each event:-

  • Collect the PGN for an event
  • Prepare the PGN according to my preferences
  • Create a text file with the structure for the event
  • Convert the text file to HTML
  • Add the players to the index of of players
  • Add the PGN to the page for the event

While the steps are largely automated, they require constant supervision because of various booby traps at each step. As for name mismatches between the official site and the PGN delivered for the event, I discovered a half-dozen:-

Unrestricted event
- Ali / Salih
- Elarbi/ Elarabi
- Gareev / Gareyev
- Iyti / Eiti

Women only
- Bhakti Kulkarni / Kulkarni Bhakti
- Medina / Aulia

I've incorporated my decision for each name on the pages holding the player indices. I hope I've been consistent with previous decisions.

06 October 2021

2021 World Cup Player Indices

In last week's post, 2021 Women's World Cup Crosstables (September 2021), I ended with an action:-
As for the PGN and the 'Index of Players', the same task needs to be done for the concurrent event already documented in '2021 World Cup Crosstables' (September 2021).

The two events were:-

I updated the respective indices that cover all World Chess Championship (WCC) events since the 19th century:-

The unrestricted event included 200 players, of which 122 were veterans of other WCC events, and 78 were competing for the first time in a WCC event. In an earlier post on Sochi, 2021 World Cup Tiebreak (August 2021), I noted that the regulations specified 206 players: 156 players in round 1, joined by 50 top seeds in round 2. The same post explained that 'The difference of six players stems from six first round matches that were not played.'

The women's event included 101 players, of which 57 were veterans of women's events and 44 were competing for the first time. How does this compare with the regulations? Here I ran into a problem. I had regulations for 'Women’s World Cup 2020' and for 'Women’s World Cup 2022', both downloaded February 2020, which was pre-covid pandemic.

Digging deeper, I discovered that FIDE released 'Regulations for the FIDE Women’s World Cup 2021' in June 2021, a month before the event took place. That document specified that 78 players in round 1 were to be joined by 25 top seeds in round 2, for a total of 103 players. The difference of two players (103 in the regulations vs. 101 who actually played) was again accounted by two first round matches that were not played.

I spent so much time researching those numeric mismatches that I was unable to tackle the PGN. I'll do that for my next post, along with a second look at 2021 World Cup Name Mismatches (August 2021), where I wrote,

Other mismatches had to do with the spelling of player's names on TWIC and on the official site. Although I resolved the name mismatches, I ran out of time to go further. I'll document the mismatches at the appropriate place.

In retrospect, I think I made a mistake trying to document both Sochi events at the same time. The result has been a process that has dragged out for too long, with neither event fully documented. The upcoming Grand Swiss will also have concurrent tournaments. I'll try a different approach for those.

***

Later: Re 'two first round matches that were not played', the players who forfeited those matches are listed here:-

Ovezdurdiyeva (Badelka)
Paramzina (Bhakti)

Their opponents, whose names are listed in parentheses, advanced to the second round.

29 September 2021

2021 Women's World Cup Crosstables

In last week's post, 2021 Women's World Cup Preparation (September 2021), I wrote,
I'll need some more time to finish the 2021 FIDE Women's World Cup crosstables. After that I'll add the PGN files to the page and update the Index of Women Players.

I added the crosstables to the page for 2021 FIDE Women's World Cup. The Fide.com server error that I mentioned in the 'Preparation' post has disappeared, so I am more confident that my data is correct.

As for the PGN and the Index of Players, the same task needs to be done for the concurrent event already documented in 2021 World Cup Crosstables (September 2021). After that, I'll catch up with the latest news for two upcoming events:-

For those in-between weeks with nothing special to report, I'll document the zonals for the current cycle, C30. Here are a few corresponding references for the previous cycle, C29:-

All that will keep me busy well into next year.

22 September 2021

2021 Women's World Cup Preparation

In the previous post, 2021 World Cup Crosstables (September 2021), I noted,
Still to be done: [...] prepare the crosstables for the concurrent event 2021 FIDE Women's World Cup.

That harks back to an earlier post, A New Cycle Is Evolving (August 2021). There I wrote,

The two World Cups finished this past week, so I used the TWIC files to prepare the PGN files for both events [...] and created 2021 FIDE Women's World Cup.

I'll need some more time to finish the 2021 FIDE Women's World Cup crosstables. After that I'll add the PGN files to the page and update the Index of Women Players.

NB: The official site from Fide.com is currently returning the message 'Oops! An Error Occurred; The server returned a "500 Internal Server Error"', so I wasn't able to check the TWIC player names against FIDE's, or verify that the individual match results were correct. I hope to be able to do both when I add the crosstables.

15 September 2021

2021 World Cup Crosstables

After pausing a few weeks, I continued with 2021 World Cup Mismatches (August 2021). In that post I wrote,
The third and last step is to convert the text file [crosstables] to web page format by adding HTML markup tags. I wasn't able to do this for the current post, because I ran into a number of mismatches that had to be resolved.

Markup tags in place, I uploaded the result to 2021 World Cup; Sochi (Russia), VII-VIII, 2021. Still to be done:-

Before doing that, I'll prepare the crosstables for the concurrent event 2021 FIDE Women's World Cup.

25 August 2021

2021 World Cup [Name] Mismatches

In the previous post, 2021 World Cup Tiebreak (August 2021), I documented the first step in converting a TWIC PGN file for a World Cup to a page like 2021 World Cup, Sochi (Russia):-
TWIC delivers the files sorted by game and round : all of the PGN game scores for the first game of the first round, followed by all of the PGNs for the second game, etc. I prefer to have all of the games for each mini-match together.

The second step is to create a text file using my standard structure for a World Cup page. I've been using the same structure since the first FIDE knockout tournament, 1997 FIDE Knockout Matches, Groningen (Netherlands). It's not elegant, but it serves my purpose well enough. While I'm creating the text file, I also compare my results against the official site.

The third and last step is to convert the text file to web page format by adding HTML markup tags. I wasn't able to do this for the current post, because I ran into a number of mismatches that had to be resolved.

One mismatch was an error I made in that 'Tiebreak' post. The other mismatches had to do with the spelling of player's names on TWIC and on the official site. Although I resolved the name mismatches, I ran out of time to go further. I'll document the mismatches at the appropriate place.

***

Later: After I wrote this post, I realized that the title '2021 World Cup Mismatches' might easily be misunderstood to mean mismatches in playing strength. While there were certainly plenty of those in the event, I corrected the title to describe the content of the post more accurately.

18 August 2021

2021 World Cup Tiebreak

In last week's post, A New Cycle Is Evolving (August 2021), I wrote,
Two World Cups finished this past week, so I used the TWIC files to prepare the PGN files for both events.

That was just the initial preparation. TWIC delivers the files sorted by game and round : all of the PGN game scores for the first game of the first round, followed by all of the PGNs for the second game, etc. I prefer to have all of the games for each mini-match together, e.g. for the second round of the unrestricted World Cup (open to both men and women), I prefer to see both games of the Carlsen - Martinovic match, followed by both games of the Caruana - Megaranto match, and so on (using the top two boards in the second round as an example).

That sort takes some effort, but I like being able to get a bird's eye view of each match without any additional work. Since that's not much info for this current post, I'll add a count of the games played in each round of the unrestricted event.

For example, there were 144 players competing in the first round -- 72 mini-matches total for the first and second games of the round -- of which 19 matches went into tiebreak. One of those matches reached the third tiebreak.

The 72 winners of the first round joined 56 seeded players to contest 64 mini-matches in the second round. One of those matches reached the 'Armageddon' tiebreak.

For an explanation of a similar chart and the tiebreaks used in a previous World Cup, see 2015 World Cup Tiebreak (October 2015), on my main blog. NB: I haven't compared the details for the tiebreaks used in the 2015 World Cup with those of the 2021 event, but I suppose they were similar. For the details of the recent event, see 2021 World Cup, Sochi (Russia).

***

Later: In the next post for this series, 2021 World Cup [Name] Mismatches (August 2021), I wrote,

I ran into a number of mismatches that had to be resolved. One mismatch was an error I made in that 'Tiebreak' post.

That error stems from the sentence above that says,

The 72 winners of the first round joined 56 seeded players to contest 64 mini-matches in the second round.

That statement doesn't square with the official rules, copied on my page about the Sochi event, that said,

Round 1: 156 players
Round 2 (78 winners of Round 1 + 50 top seeds): 128 players

The difference of six players (78 winners - 72 winners) stems from six first round matches that were not played. The players who forfeited those matches are listed here:-

Atabayev (Erdos)
Fan (Lupulescu)
Rodriguez (Ivanisevic)
Wynn (Mikhalevski)
Zaibi (Deac)
Ziska (Moradiabadi)

Their opponents, whose names are listed in parentheses, advanced to the second round.