2010 World Championship

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The 2010 World Championship began with the Open Classic on Thursday, 7 January 2010:

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For other events see Event Reports

Contents

Participants

Tournament participants with pre-tournament information & history.

  • WHR = Human vs. Human Arimaa.com Rating
  • WCh W-L = Cumulative Win-Loss record in all previous World Championships [# of previous tournaments]
  • 1st, 2nd, 3rd = Number of all-time 1st, 2nd and 3rd place finishes
Seed Participant Name Country WHR WCh W-L 1st 2nd 3rd
1 Fritzlein Karl Juhnke United States 2568 32-8 [5] 2 1 1
2 chessandgo Jean Daligault France 2561 23-5 [3] 2 1
3 Adanac Greg Magne Canada 2319 20-11 [4] 1 2
4 99of9 Toby Hudson Australia 2227 18-14 [6]
5 Tuks Louis-Daniel Scott Germany 2199 3-4 [1]
6 ChrisB Christopher Bovee United States 2095 2-4 [1]
7 omar Omar Syed United States 2012 16-13 [6] 2
8 PMertens Paul Mertens Germany 2004 12-6 [3] 1 1
9 The_Jeh John Herr United States 1987 4-4 [1]
10 naveed Naveed Siddiqui United States 1859 12-16 [6] 1
11 woh Hervé D’Hondt Belgium 1851 7-8 [3]
12 Simon Simon Lambert Canada 1799
13 Nevermind Antti Laine Finland 1756
14 Nombril Eric Momsen United States 1753
15 fritzlforpresident John Hoody United States 1658 3-5 [2]
16 Hippo Vladan Majerech Czech Republic 1581

Tournament Information

The 2010 World Championship, the 7th annual championship, will begin on Thursday, 7 January 2010 and continue for approximately 12 weeks (depending upon whether byes or a third place game are necessary). Similar to the previous two World Championships, there will an Open Classic Swiss System tournament to determine the top eight finalists for the double-elimination knockout World Championship Finals. Games will continue thereafter until one survivor remains. Open Classic games will use a time control of 60s/5m/75/0/4h/4m with an extra 30 seconds per move allotted in the Finals: 90s/5m/75/0/6h/5m. Only 75% of unused time is added to the reserve up to a limit of 4 or 5 minutes, respectively, to encourage moves at a steady pace rather than many quick moves followed by a long think.

Players are seeded #1-16 in the Open Classic based upon their WHR Rating, precluding the possibility of obtaining a high seed based upon formulaic bot-bashing. Players will be re-seeded #1-8 in the Finals based upon order of finish in the Open Classic. A higher seed in the Finals should provide for a slightly easier schedule, of course, but also higher priority for a bye in later rounds. Standings will be updated each round in this Wiki. To read the crosstables, “S 7 L” & “G 14 W”, after 2 rounds for example, means the player in that row Lost with the Silver pieces against player #7 in round 1 and then Won with the Gold pieces against player #14 in round 2. The opponent # can either be an initial seed or current rank, depending upon the table, but in both cases the player # will always correspond with the left-most column in the table.

Registration for the event closed on 1 January 2010 with 16 participants. This is the second straight year in which the number of participants has decreased from the previous championship, but this is the strongest field ever with an average rating of 2014. This year’s games should be much more competitive than ever before, especially in the early rounds of the Open Classic. Karl Juhnke (Fritzlein) and Jean Daligault (chessandgo) are both hoping to win their 3rd World Championship title while the other 14 players will all be competing for their first. Of the 61 players that had competed in any of the previous six World Championships, 12 have returned in 2010 plus we have 4 new players: Simon Lambert (Simon), Antti Laine (Nevermind), Eric Momsen (Nombril) and Vladan Majerech (Hippo). Interestingly, no player had ever before returned to the World Championship after missing a previous tournament. But this year, we have three returning players that did not participate in the 2009 World Championship: Paul Mertens (PMertens), Christopher Bovee (ChrisB) and John Hoody (fritzlforpresident).

Open Classic Results

Players are sorted below by their original seed with current rank shown in the second column. Current rank is determined first by number of wins, second by SoS = Strength of Schedule (explained below) and finally, any remaining ties are broken by higher WHR (or equivalently, by original seeding).

  • T = 1/(1+10^(2.885*(P-O)/(N+1))
  • where P=Player Number of Wins, O=Opponent Number of Wins, N=Round#
  • SoS = Sum of all values of T.
Seed Rank Participant Name WHR Rd. 1 Rd. 2 Rd. 3 Rd. 4 Rd. 5 Wins SoS
1 2 Fritzlein Karl Juhnke 2568 G 9 W S 7 W G 2 L G 14 W S 3 W 4 1.4453
2 3 chessandgo Jean Daligault 2561 G 10 W S 8 W S 1 W G 3 L S 9 W 4 1.4453
3 1 Adanac Greg Magne 2319 G 11 W S 12 W S 5 W S 2 W G 1 L 4 1.5953
4 4 99of9 Toby Hudson 2227 G 12 L S 11 W G 7 W S 5 W G 13 W 4 0.7922
5 5 Tuks Louis-Daniel Scott 2199 S 13 W S 14 W G 3 L G 4 L S 8 W 3 2.2484
6 15 ChrisB Christopher Bovee 2095 G 14 L G 13 L S 10 L G 15 W S 7 L 1 3.2548
7 13 omar Omar Syed 2012 S 15 W G 1 L S 4 L G 12 L G 6 W 2 2.6499
8 9 PMertens Paul Mertens 2004 S 16 W G 2 L S 13 L G 10 W G 5 L 2 3.1531
9 6 The_Jeh John Herr 1987 S 1 L G 15 W S 16 W G 13 W G 2 L 3 2.0348
10 14 naveed Naveed Siddiqui 1859 S 2 L G 16 L G 6 W S 8 L S 15 W 2 2.2484
11 7 woh Hervé D’Hondt 1851 S 3 L G 4 L S 15 W G 16 W S 12 W 3 2.0348
12 8 Simon Simon Lambert 1799 S 4 W G 3 L S 14 L S 7 W G 11 L 2 3.5547
13 10 Nevermind Antti Laine 1756 G 5 L S 6 W G 8 W S 9 L S 4 L 2 3.1531
14 12 Nombril Eric Momsen 1753 S 6 W G 5 L G 12 W S 1 L S 16 L 2 2.9015
15 16 fritzlforpresident John Hoody 1658 G 7 L S 9 L G 11 L S 6 L G 10 L 0 4.4850
16 11 Hippo Vladan Majerech 1581 G 8 L S 10 W G 9 L S 11 L G 14 W 2 3.0032

World Championship Results

Seed Participant Name Rd. 1 Rd. 2 Rd. 3 Rd. 4 Rd. 5 Rd. 6 W-L Finish
1 Adanac Greg Magne G 8 W S 4 W S 2 L G 3 L G 4 W 3-2 3rd
2 Fritzlein Karl Juhnke S 7 W S 3 W G 1 W S 4 W S 3 L G 3 L 4-2 2nd
3 chessandgo Jean Daligault G 6 W G 2 L S 5 W S 1 W G 2 W S 2 W 5-1 1st
4 99of9 Toby Hudson S 5 W G 1 L S 6 W G 2 L S 1 L 2-3 4th
5 Tuks Louis-Daniel Scott G 4 L S 8 W G 3 L 1-2 joint 5th
6 The_Jeh John Herr S 3 L G 7 W G 4 L 1-2 joint 5th
7 woh Hervé D’Hondt G 2 L S 6 L 0-2 joint 7th
8 Simon Simon Lambert S 1 L G 5 L 0-2 joint 7th
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