CG – Mainz (2008)

Here is my tournament report (which only knows RR structures, but I now have routines that do Swiss, KO (via compound round numbers) and Scheveningen that could be added in):

65065 - Chess Classic Mainz (2008) -- Chess Classic Mainz // Mainz GER (2008.08.01)

Player list (4 players):

   Anand, Viswanathan             12088    5.5
   Carlsen, Magnus                52948    5.5
   Morozevich, Alexander          11719    5.5
   Polgar, Judit                  12190    5.5

N_games =  20

Tournament is assumed to be RR4   (4 missing)   # good guess, considering!

Round counts:

    R1  :  4    R2  :  4    R3  :  4    R4  :  4    R5  :  2
    R6  :  2


Missing pairings:

    Anand, Viswanathan       12088    5.5    ()    //    Carlsen, Magnus          52948    5.5    ()
    Anand, Viswanathan       12088    5.5    ()    //    Morozevich, Alexander    11719    5.5    ()
    Anand, Viswanathan       12088    5.5    ()    //    Polgar, Judit            12190    5.5    ()
    Carlsen, Magnus          52948    5.5    ()    //    Morozevich, Alexander    11719    5.5    ()
    Carlsen, Magnus          52948    5.5    ()    //    Polgar, Judit            12190    5.5    ()
    Morozevich, Alexander    11719    5.5    ()    //    Polgar, Judit            12190    5.5    ()

These numbers don’t make sense. Nor do they when other single tournament schedules are tired. What is going on? Let’s print out the entire 20 games by hand:

>>> G = TG[t]
>>> G.sort( lambda x, y: cmp( int(x.Round), int(y.Round) ) or 
                         cmp( x.White, y.White ) )
>>> for g in G: print "%6d %8d %6d %6d" % g.id, `g`

 65065  1499553  12088  52948      2008.08.01   B77  31  (R1)   =    Anand -- Carlsen
 65065  1499642  12088  52948      2008.08.03   B77  50  (R1)  1-0   Anand -- Carlsen
 65065  1499638  11719  12190      2008.08.03   A70  49  (R1)   =    Morozevich -- Polgar, J.
 65065  1499552  12190  11719      2008.08.01   C92  71  (R1)  0-1   Polgar, J. -- Morozevich
 65065  1499555  12088  12190      2008.08.01   B46  61  (R2)   =    Anand -- Polgar, J.
 65065  1499554  52948  11719      2008.08.01   B45  48  (R2)   =    Carlsen -- Morozevich
 65065  1499643  52948  12088      2008.08.03   E06  50  (R2)  0-1   Carlsen -- Anand
 65065  1499639  12190  11719      2008.08.03   C92 146  (R2)   =    Polgar, J. -- Morozevich
 65065  1499644  12088  52948      2008.08.03   B52  56  (R3)   =    Anand -- Carlsen
 65065  1499557  11719  12088      2008.08.01   B90  48  (R3)  0-1   Morozevich -- Anand
 65065  1499640  11719  12190      2008.08.03   A70  67  (R3)   =    Morozevich -- Polgar, J.
 65065  1499556  12190  52948      2008.08.01   B78  44  (R3)  0-1   Polgar, J. -- Carlsen
 65065  1499560  52948  12088      2008.08.02   E15  33  (R4)   =    Carlsen -- Anand
 65065  1499645  52948  12088      2008.08.03   E06  11  (R4)   =    Carlsen -- Anand
 65065  1499561  11719  12190      2008.08.02   E17  29  (R4)  1-0   Morozevich -- Polgar, J.
 65065  1499641  12190  11719      2008.08.03   C92  71  (R4)  0-1   Polgar, J. -- Morozevich
 65065  1499584  11719  52948      2008.08.02   E17  32  (R5)   =    Morozevich -- Carlsen
 65065  1499583  12190  12088      2008.08.02   B92  33  (R5)   =    Polgar, J. -- Anand
 65065  1499593  12088  11719      2008.08.02   C92  47  (R6)  1-0   Anand -- Morozevich
 65065  1499585  52948  12190      2008.08.02   E10  33  (R6)   =    Carlsen -- Polgar, J.
>>>

Normally, printing out the games isn’t so revealing. But normally there aren’t so many multiple pairings when the tournament clearly isn’t a RRn (i.e. n-round Round Robin aka all-play-all). These multiple pairings stick out like a sore thumb when the games are properly sorted.

The problem is that this really isn’t one tournament exactly, it’s three. The tournament was structured as 4-player RR, followed by a two-player 4-round final, and a 4-round tiebreak for 3th & 4th place. Did I mention that these were all rapid games?

Let’s copy over the event schedule, thanks to <ChessBase>:

GRENKELEASING Rapid World Championship – 1-3 August 2008

Rapid Chess, 20min/game + 5s/move.

Course of events:
Fri,    1   Aug: first rounds 1, 2 and 3;
Sat,   2  Aug: second rounds 4, 5 and 6, possible tiebreak;
Sun, 3  Aug: four-game matches, big and small final,
possible tiebreak, award ceremony.

Start time of rounds: 18:30h, 19:30h, 20:30h, final additionally: 21:30h.

Participants:

Player Nation Title
Rating
WRnk
Viswanathan Anand India  GM
2798
1
Alexander Morozevich Russia  GM
2788
2
Magnus Carlsen Norway  GM
2775
6
Judit Polgar Hungary  GM
2711
22

Note: world rankings and ratings according to the official FIDE rating list of July 2008

When downloading the tournament files from <ChessBase> there are two downloads, and three different PGN Event headers (as there should be!). Here are the three Event tags:

13th GrenkeLeasing Rapid WCh
13th GrenkeLeasing Rapid WCh Final

13th GrenkeLeasing Rapid WCh 3rd-4th

The first download, is the 12-game, 4-RR2, with Event tag “13th GrenkeLeasing Rapid WCh”:

http://en.chessbase.com/portals/4/files/news/2008/mainz/games/mainz01.pgn (PGN download)

http://en.chessbase.com/post/mainz-2008-anand-to-face-carlsen-in-grenkeleasing-final

Then, <ChessBase> provides a 8-game download, of the two m-4 playoffs, with Event tags “13th GrenkeLeasing Rapid WCh Final” and13th GrenkeLeasing Rapid WCh 3rd-4th”:

http://en.chessbase.com/portals/4/files/news/2008/mainz/games/mainz02.pgn (PGN download)

http://en.chessbase.com/post/mainz-2008-anand-punishes-carlsen-in-grenkeleasing-final

If <CG> wants to be a premier online chess database, it must properly normalize the super-set of the tournament games (and Mainz 2008 consists of many more sections than just the Rapid Wch, fwiw). And it must also preserve and publish the relevant biographical details, even if only the terse excerpt from <ChessBase>. That, my chess friends, is the minimum required.

As it stands now, without any introductory material, and with all the games from the three phrases mixed together, the tournament is in a jumbled state of confusion, at least for this weary user:

http://www.chessgames.com/perl/chess.pl?tid=65065

zz

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