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'''[[Main Page|Home]] * [[Tournaments and Matches|Tournaments]] * [[World Chess Software Championship]] * 3rd WCSC Yokohama 2013'''
'''[[WCSC 2011|< Prev]] [[WCSC 2015|Next >]]'''
[[FILE:協生館-慶應日吉2.jpg|border|right|thumb|Kyōsei-kan from athletics stadium <ref>Kyōsei-kan from athletics stadium, Image by [https://commons.wikimedia.org/wiki/User:%E5%A1%BE%E7%94%9F 塾生], 2009, [https://creativecommons.org/licenses/by-sa/3.0/deed.en CC BY-SA 3.0], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons], [https://en.wikipedia.org/wiki/Campus_of_Keio_University#Hiyoshi_campus Campus of Keio University - Kyōsei-kan - Wikipedia]</ref> ]]
'''3rd WCSC Yokohama 2013''',
From August 12, to August 18, [[Timeline#2013|2013]], [https://en.wikipedia.org/wiki/Keio_University Keio University] [https://en.wikipedia.org/wiki/Campus_of_Keio_University#Hiyoshi_campus Kyōsei-kan], the Collaboration Complex <ref>[http://www.hc.keio.ac.jp/en/kyoseikan/index.html Keio University Hiyoshi Campus | Kyosei-Kan (Collaboration Complex) | Overview]</ref> , [https://en.wikipedia.org/wiki/Yokohama Yokohama], [https://en.wikipedia.org/wiki/Japan Japan], in conjunction with the [[WCCC 2013]], the [[CG 2013|8th International Computers and Games Conference]] and the [[17th Computer Olympiad]]. Double round robin, all moves 45 minutes plus an increment of 15 seconds per move <ref>[[ICGA#Board|The Board of ICGA]] ('''2013'''). ''Rules for the 20th World Computer-Chess Championship''. [[ICGA Journal#36_1|ICGA Journal, Vol. 36, No. 1]], [https://icga.leidenuniv.nl/wp-uploads/2013/02/RULES-FOR-THE-20th-WCCC-and-other-tournaments-1.pdf pdf]</ref>. All programs payed on an [https://en.wikipedia.org/wiki/List_of_Intel_Core_i7_microprocessors#.22Ivy_Bridge_.28quad-core.29.22_.2822_nm.29 i7-3740] Laptop, 2.7Ghz with 16GiB [[Memory#RAM|RAM]] <ref>[[Eric Hallsworth]] ('''2013'''). ''Computer Chess World Championships 2013''. [[Selective Search]] 166, pp. 34, [http://www.chesscomputeruk.com/SS_166.pdf pdf] hosted by [[Mike Watters]]</ref>.
[[Hiarcs]] by [[Mark Uniacke]], operated by [[Harvey Williamson]], defended [[WCSC 2011|its title]] in a last round decision and a draw versus [[Junior]]. [[Pandix]] by [[Gyula Horváth]] started a great pursuit with 4½/5 in the second half, for a Silver medal shared with Junior.
=Final Standing=
3rd World Chess Software Championship 2013, Yokohama, JP <ref>[https://icga.leidenuniv.nl/?page_id=633 WCSC 2013] - [[ICGA]]</ref>:
{| class="wikitable"
|-
! #
! Program
! CC
! R1
! R2
! R3
! R4
! R5
! R6
! R7
! R8
! R9
! R10
! P
|-
! 1
| style="text-align:left;" | [[Hiarcs]]
! GB
| style="text-align:right;" | 4w½
| style="text-align:right;" | 6b1
| style="text-align:right;" | 5w1
| style="text-align:right;" | 2b1
| style="text-align:right;" | 3w1
| style="text-align:right;" | 4b½
| style="text-align:right;" | 6w1
| style="text-align:right;" | 5b½
| style="text-align:right;" | 2w0
| style="text-align:right;" | 3b½
! 7
|-
! 2
| style="text-align:left;" | [[Pandix]]
! HU
| style="text-align:right;" | 6w1
| style="text-align:right;" | 5b½
| style="text-align:right;" | 3w0
| style="text-align:right;" | 1w0
| style="text-align:right;" | 4b½
| style="text-align:right;" | 6b1
| style="text-align:right;" | 5w½
| style="text-align:right;" | 3b1
| style="text-align:right;" | 1b1
| style="text-align:right;" | 4w1
! 6½
|-
! 3
| style="text-align:left;" | [[Junior]]
! IL
| style="text-align:right;" | 5b1
| style="text-align:right;" | 4w½
| style="text-align:right;" | 2b1
| style="text-align:right;" | 6w1
| style="text-align:right;" | 1b0
| style="text-align:right;" | 5w½
| style="text-align:right;" | 4b1
| style="text-align:right;" | 2w0
| style="text-align:right;" | 6b1
| style="text-align:right;" | 1w½
! 6½
|-
! 4
| style="text-align:left;" | [[Jonny]]
! DE
| style="text-align:right;" | 1b½
| style="text-align:right;" | 3b½
| style="text-align:right;" | 6w1
| style="text-align:right;" | 5b½
| style="text-align:right;" | 2w½
| style="text-align:right;" | 1w½
| style="text-align:right;" | 3w0
| style="text-align:right;" | 6b1
| style="text-align:right;" | 5w1
| style="text-align:right;" | 2b0
! 5½
|-
! 5
| style="text-align:left;" | [[Shredder]]
! DE
| style="text-align:right;" | 3w0
| style="text-align:right;" | 2w½
| style="text-align:right;" | 1b0
| style="text-align:right;" | 4w½
| style="text-align:right;" | 6b1
| style="text-align:right;" | 3b½
| style="text-align:right;" | 2b½
| style="text-align:right;" | 1w½
| style="text-align:right;" | 4b0
| style="text-align:right;" | 6w1
! 4½
|-
! 6
| style="text-align:left;" | [[Merlin (HU)|Merlin]]
! HU
| style="text-align:right;" | 2b0
| style="text-align:right;" | 1w0
| style="text-align:right;" | 4b0
| style="text-align:right;" | 3b0
| style="text-align:right;" | 5w0
| style="text-align:right;" | 2w0
| style="text-align:right;" | 1b0
| style="text-align:right;" | 4w0
| style="text-align:right;" | 3w0
| style="text-align:right;" | 5b0
! 0
|}
{| class="wikitable"
|-
! #
! Program
! CC
! Hi
! Pa
! Ju
! Jo
! Sh
! Me
! P
! W
! D
! L
|-
! 1
| style="text-align:left;" | [[Hiarcs]]
! GB
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | 01
| style="text-align:center;" | 1½
| style="text-align:center;" | ½½
| style="text-align:center;" | 1½
| style="text-align:center;" | 11
! 7
| style="text-align:right;" | 5
| style="text-align:right;" | 4
| style="text-align:right;" | 1
|-
! 2
| style="text-align:left;" | [[Pandix]]
! HU
| style="text-align:center;" | 01
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | 01
| style="text-align:center;" | 1½
| style="text-align:center;" | ½½
| style="text-align:center;" | 11
! 6½
| style="text-align:right;" | 5
| style="text-align:right;" | 3
| style="text-align:right;" | 2
|-
! 2
| style="text-align:left;" | [[Junior]]
! IL
| style="text-align:center;" | ½0
| style="text-align:center;" | 01
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | ½1
| style="text-align:center;" | ½1
| style="text-align:center;" | 11
! 6½
| style="text-align:right;" | 5
| style="text-align:right;" | 3
| style="text-align:right;" | 2
|-
! 4
| style="text-align:left;" | [[Jonny]]
! DE
| style="text-align:center;" | ½½
| style="text-align:center;" | ½0
| style="text-align:center;" | 0½
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | 1½
| style="text-align:center;" | 11
! 5½
| style="text-align:right;" | 3
| style="text-align:right;" | 5
| style="text-align:right;" | 2
|-
! 5
| style="text-align:left;" | [[Shredder]]
! DE
| style="text-align:center;" | ½0
| style="text-align:center;" | ½½
| style="text-align:center;" | 0½
| style="text-align:center;" | ½0
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | 11
! 4½
| style="text-align:right;" | 2
| style="text-align:right;" | 5
| style="text-align:right;" | 3
|-
! 6
| style="text-align:left;" | [[Merlin (HU)|Merlin]]
! HU
| style="text-align:center;" | 00
| style="text-align:center;" | 00
| style="text-align:center;" | 00
| style="text-align:center;" | 00
| style="text-align:center;" | 00
| style="text-align:center;" | '''xx'''
! 0
| style="text-align:right;" | 0
| style="text-align:right;" | 0
| style="text-align:right;" | 10
|}
* [https://en.wikipedia.org/wiki/ISO_3166-1 CC Country Codes]
=Participants=
3rd World Chess Software Championship 2013, Yokohama, JP <ref>[https://www.game-ai-forum.org/icga-tournaments/tournament.php?id=269 3rd World Computer Chess Championship (Software)]</ref> , Uniform hardware: [[Intel]] 4 cores.
{| class="wikitable"
|-
! Program
! CC
! Authors
! Operators
|-
| [[Hiarcs]]
! GB
| [[Mark Uniacke]]
| [[Harvey Williamson]]
|-
| [[Jonny]]
! DE
| [[Johannes Zwanzger]]
|
|-
| [[Junior]]
! IL
| [[Amir Ban]], [[Shay Bushinsky]]
| [[Amir Ban]]
|-
| [[Merlin (HU)|Merlin]]
! HU
| [[Balázs Jako|Balázs Jákó]]
|
|-
| [[Pandix]]
! HU
| [[Gyula Horváth]]
|
|-
| [[Shredder]]
! DE
| [[Stefan Meyer-Kahlen]]
|
|}
* [https://en.wikipedia.org/wiki/ISO_3166-1 CC Country Codes]
=Photos & Games=
<ref>[https://icga.leidenuniv.nl/wp-uploads/conference/WCSC/wcsc2013.pgn wcsc2013.pgn]</ref> <ref>[https://icga.leidenuniv.nl/wp-uploads/conference/WCSC/WCSC%202013.pdf WCSC 2013 - report] (pdf)</ref>
==Round 1==
<ref>[https://icga.leidenuniv.nl/?page_id=770&wppa-album=1&wppa-cover=0&wppa-occur=1&wppa-photo=6 Photos 2013 Events: day 1] by [[Jan Krabbenbos]], August 13, 2013</ref>
===Pandix - Merlin===
[[FILE:WCSC2013_R1.jpg|none|border|text-bottom|link=https://icga.leidenuniv.nl/?page_id=770&wppa-album=1&wppa-cover=0&wppa-occur=1&wppa-photo=6]]
[[Pandix]] - [[Merlin (HU)|Merlin]], [[Balázs Jako|Balázs Jákó]] and [[Gyula Horváth]], [[Mark Watkins]] wondering about Pandix' 1.a4
<pre>
[Event "WCSC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.12"]
[Round "1.2"]
[White "Pandix"]
[Black "Merlin"]
[Result "1-0"]
1.a4 e5 2.e4 Nf6 3.Nc3 Bb4 4.Nf3 O-O 5.Nxe5 d5 6.Be2 dxe4 7.d4 exd3 8.Nxd3 Bxc3+
9.bxc3 Ne4 10.Bb2 Qg5 11.O-O Re8 12.Re1 Bf5 13.Qc1 Qxc1 14.Raxc1 Na6 15.g4 Bd7
16.Bf3 Nd6 17.a5 Rad8 18.Kg2 Bb5 19.Ba3 Nc4 20.Be7 Rdb8 21.Rca1 c6 22.h4 h6 23.Kg3
Rba8 24.Bg2 Rab8 25.g5 hxg5 26.hxg5 Nc7 27.Bc5 Rxe1 28.Rxe1 b6 29.Bd4 Nxa5 30.Re7
Bxd3 31.Rxc7 Bxc2 32.Rxa7 g6 33.Bf6 c5 34.Bd5 Rf8 35.Re7 Bd1 36.f3 Rd8 37.Re1 Kf8
38.Rh1 Ke8 39.Rh8+ Kd7 40.Rxd8+ Kc7 41.Bxf7 1-0
</pre>
The game Pandix – Merlin started with a psychological move 1. A4. Black replied in the normal mode but had to play without opening book. The game continued as reversed Ruy Lopez. White clearly had some difficulties and although black’s play was strong it was not convincing. Despite its first move which weakened the queen side black could not keep the advantage on the table. Slowly white came into the game and turned the tables. From that moment onwards the white player continued to expand space, initiatives and threats. For black there was no opportunity to stop the stream of ideas and threats which came to him. Finally he lost by an elementary regrouping of pieces.
===Shredder - Junior===
[[FILE:WCSC2013R1ShredderJunior.jpg|none|border|text-bottom|link=https://icga.leidenuniv.nl/?page_id=770&wppa-album=1&wppa-photo=7&wppa-cover=0&wppa-occur=1]]
[[Shredder]] - [[Junior]], [[Ingo Althöfer]] watching, [[Stefan Meyer-Kahlen]] and [[Amir Ban]]
<pre>
[Event "WCSC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.12"]
[Round "1.3"]
[White "Shredder"]
[Black "Junior"]
[Result "0-1"]
1.e4 e6 2.d4 d5 3.Nd2 Be7 4.Ngf3 Nf6 5.Bd3 c5 6.exd5 Qxd5 7.dxc5 Nbd7 8.Qe2 Nxc5
9.Bc4 Qd6 10.Nb3 O-O 11.O-O b6 12.Ne5 Bb7 13.Bf4 Nxb3 14.axb3 Qd4 15.Bg3 Qe4 16.f3
Qxe2 17.Bxe2 Nh5 18.Bf2 Nf4 19.Bb5 a6 20.Bc6 Bxc6 21.Nxc6 Bf6 22.Rad1 a5 23.c3 b5
24.Rfe1 Rfc8 25.Na7 Rcb8 26.Bg3 g5 27.Nc6 Rbc8 28.Ne5 Rcd8 29.Nd7 Bg7 30.h4 h6
31.Bxf4 gxf4 32.Rd3 b4 33.cxb4 axb4 34.Re4 Ra7 35.Ne5 Rd5 36.Rxd5 Ra1+ 37.Kh2 exd5
38.Re2 Rd1 39.h5 d4 40.Nc4 Bf6 41.Re4 Bg5 42.g4 d3 43.Kg2 Kg7 44.Rd4 Bf6 45.Rd5 Bc3
46.Rd6 f6 47.Rd7+ Kf8 48.Kf2 Ke8 49.Rd6 Ke7 50.Rd5 d2 51.Rd3 f5 52.Nb6 Kf7 53.Nd5
Re1 54.bxc3 d1=Q 55.Rxd1 Rxd1 56.c4 fxg4 57.fxg4 Rb1 58.Nxb4 Kf6 59.Nd3 Kg5 60.b4
Kxg4 61.b5 Rb3 62.Ne5+ Kxh5 63.Nf3 Rb2+ 0-1
</pre>
They have met each other many times, Shredder and Junior. They have both been world champion with currently Junior holding the WCCC title. Their contests are always interesting. The current game does not form an exception. A quiet but still complex French start of the game resulted in black attempting to take the initiative. Shredder replied cautiously but black continued with challenging moves. The result was complex position even though the queens had already left the board. On the square millimeter the fight continued. Junior played quite inventively and succeeded to widen its initiative to pressure on the white position. Even with a few pawns and only a rook and a minor piece there were huge complications. Black was able to complete the series of pressure moves by a nice bishop sacrifice which could not be accepted by white. Declining the offer did not get any relief and after five more strong moves white resigned.
==Showdown in Round 10==
<ref>[https://icga.leidenuniv.nl/?page_id=883 Photos 2013 Events: day 7], [[ICGA]]</ref>
[[FILE:WCSC2013R10JuniorHiarcs.JPG|none|border|text-bottom|640px|link=https://icga.leidenuniv.nl/?page_id=883&wppa-album=8&wppa-cover=0&wppa-occur=1&wppa-photo=112]]
[[Junior]] - [[Hiarcs]], [[Harvey Williamson]], [[David Levy]], [[Jaap van den Herik]] and [[Amir Ban]], back of [[Johan de Koning]] (?)
<pre>
[Event "WCSC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.18"]
[Round "10.3"]
[White "Junior"]
[Black "Hiarcs"]
[Result "1/2-1/2"]
1.Nf3 Nf6 2.c4 c6 3.d4 d5 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O dxc4
9.Bxc4 b5 10.Bd3 Bb7 11.e4 e5 12.dxe5 Nxe5 13.Nxe5 Bxe5 14.h3 b4 15.Na4 Bd4
16.Be3 Bxe3 17.fxe3 Nd7 18.a3 a5 19.e5 h6 20.e6 fxe6 21.Bc4 Qe7 22.Qe4 Rxf1+
23.Rxf1 Re8 24.axb4 axb4 25.Rd1 Nf6 26.Qd4 Kh8 27.Nc5 Nd5 28.Bd3 Kg8 29.Rf1
Rf8 30.Rc1 Bc8 31.Qe4 g5 32.Nb3 Nf6 33.Qg6+ Qg7 34.Qxg7+ Kxg7 35.Rxc6 g4
36.Rc7+ Kg8 37.Bc4 Nd5 38.Bxd5 exd5 39.hxg4 Bxg4 40.Rb7 h5 41.Nd4 Re8 42.Kf2
Rf8+ 43.Nf3 Bf5 44.Rxb4 Be4 45.Kg3 Kh8 46.Rb5 Rg8+ 47.Kh2 Kh7 48.b4 Bxf3
49.gxf3 Re8 50.Rxd5 Rxe3 51.Kg3 Kg6 52.Rd6+ Kg5 53.Rd4 Ra3 54.Rd5+ Kg6 55.Rd6+
Kg5 56.Rd4 Kf5 57.Rh4 Kg5 58.Re4 Rb3 59.Rh4 Rb1 60.b5 Rxb5 61.f4+ Kg6
1/2-1/2
</pre>
==Price giving==
[[FILE:WCSC2013Pricegiving.jpg|none|border|text-bottom|640px|link=https://icga.leidenuniv.nl/?page_id=883&wppa-album=8&wppa-cover=0&wppa-occur=1&wppa-photo=115]]
[[Amir Ban]], [[Harvey Williamson]] and [[Gyula Horváth]], Silver for [[Junior]], Gold for [[Hiarcs]] and Silver for [[Pandix]]
=See also=
* [[17th Computer Olympiad]]
* [[CG 2013]]
* [[WCCC 2013]]
=Publications=
* [[ICGA#Board|The Board of ICGA]] ('''2012'''). ''Announcement of the Yokohama Events''. [[ICGA Journal#34_4|ICGA Journal, Vol. 35, No. 4]]
* [[ICGA#Board|The Board of ICGA]] ('''2013'''). ''Rules for the 20th World Computer-Chess Championship''. [[ICGA Journal#36_1|ICGA Journal, Vol. 36, No. 1]], [https://icga.leidenuniv.nl/wp-uploads/2013/02/RULES-FOR-THE-20th-WCCC-and-other-tournaments-1.pdf pdf]
* [[Jan Krabbenbos]], [[Guy Haworth]], [[Jaap van den Herik]] ('''2013'''). ''The 3rd World Chess Software Championship''. [[ICGA Journal#36_3|ICGA Journal, Vol. 36, No. 3]]
* [[Eric Hallsworth]] ('''2013'''). ''Computer Chess World Championships 2013''. [[Selective Search]] 166, pp. 32, [http://www.chesscomputeruk.com/SS_166.pdf pdf] hosted by [[Mike Watters]]
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=46518 ICGA Olympiad 2013: Yokohama, Aug 12-18!] by [[Harm Geert Muller]], [[CCC]], December 21, 2012
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=26290 ICGA Computer Olympiad 2013: Yokohama, Aug 12-18] by [[Harm Geert Muller]], [[Computer Chess Forums|Rybka Forum]], December 21, 2012
* [http://hiarcs.net/forums/viewtopic.php?t=6024&sid=c476b51a9eb601cbe0c45ab28fd4ee69 WCCC & WCSC 2013 in Yokohama] by [[Harvey Williamson]], [[Computer Chess Forums|Hiarcs Forum]], June 04, 2013
* [http://hiarcs.net/forums/viewtopic.php?p=60550#60550 Hiarcs games in WCSC Yokahama 2013] by [[Harvey Williamson]], [[Computer Chess Forums|Hiarcs Forum]], August 11, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49001 Hiarcs wins 3rd World Chess Software Championship] by [[Gerd Isenberg]], [[CCC]], August 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49002 HIARCS wins the World Chess Software Championship] by [[Ian Osgood]], [[CCC]], August 18, 2013
=External Links=
* [https://icga.leidenuniv.nl/?page_id=633 WCSC 2013] - [[ICGA]]
: [https://icga.leidenuniv.nl/?p=619 Change of Building for the ICGA Events in Yokohama] - [[ICGA]], August 08, 2013
* [https://www.game-ai-forum.org/icga-tournaments/event.php?id=44 Yokohama 2013 (ICGA Tournaments)]
: [https://www.game-ai-forum.org/icga-tournaments/tournament.php?id=269 3rd World Computer Chess Championship (Software)]
* [http://chesstigersontour.wordpress.com/2013/08/18/chess-in-yokohama-2-tournaments-2-winners/ Chess in Yokohama: 2 tournaments, 2 winners], [http://chesstigersontour.wordpress.com/ Chess Tigers on Tour], August 18, 2013
=References=
<references />
'''[[World Chess Software Championship|Up one Level]]'''
'''[[WCSC 2011|< Prev]] [[WCSC 2015|Next >]]'''
[[FILE:協生館-慶應日吉2.jpg|border|right|thumb|Kyōsei-kan from athletics stadium <ref>Kyōsei-kan from athletics stadium, Image by [https://commons.wikimedia.org/wiki/User:%E5%A1%BE%E7%94%9F 塾生], 2009, [https://creativecommons.org/licenses/by-sa/3.0/deed.en CC BY-SA 3.0], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons], [https://en.wikipedia.org/wiki/Campus_of_Keio_University#Hiyoshi_campus Campus of Keio University - Kyōsei-kan - Wikipedia]</ref> ]]
'''3rd WCSC Yokohama 2013''',
From August 12, to August 18, [[Timeline#2013|2013]], [https://en.wikipedia.org/wiki/Keio_University Keio University] [https://en.wikipedia.org/wiki/Campus_of_Keio_University#Hiyoshi_campus Kyōsei-kan], the Collaboration Complex <ref>[http://www.hc.keio.ac.jp/en/kyoseikan/index.html Keio University Hiyoshi Campus | Kyosei-Kan (Collaboration Complex) | Overview]</ref> , [https://en.wikipedia.org/wiki/Yokohama Yokohama], [https://en.wikipedia.org/wiki/Japan Japan], in conjunction with the [[WCCC 2013]], the [[CG 2013|8th International Computers and Games Conference]] and the [[17th Computer Olympiad]]. Double round robin, all moves 45 minutes plus an increment of 15 seconds per move <ref>[[ICGA#Board|The Board of ICGA]] ('''2013'''). ''Rules for the 20th World Computer-Chess Championship''. [[ICGA Journal#36_1|ICGA Journal, Vol. 36, No. 1]], [https://icga.leidenuniv.nl/wp-uploads/2013/02/RULES-FOR-THE-20th-WCCC-and-other-tournaments-1.pdf pdf]</ref>. All programs payed on an [https://en.wikipedia.org/wiki/List_of_Intel_Core_i7_microprocessors#.22Ivy_Bridge_.28quad-core.29.22_.2822_nm.29 i7-3740] Laptop, 2.7Ghz with 16GiB [[Memory#RAM|RAM]] <ref>[[Eric Hallsworth]] ('''2013'''). ''Computer Chess World Championships 2013''. [[Selective Search]] 166, pp. 34, [http://www.chesscomputeruk.com/SS_166.pdf pdf] hosted by [[Mike Watters]]</ref>.
[[Hiarcs]] by [[Mark Uniacke]], operated by [[Harvey Williamson]], defended [[WCSC 2011|its title]] in a last round decision and a draw versus [[Junior]]. [[Pandix]] by [[Gyula Horváth]] started a great pursuit with 4½/5 in the second half, for a Silver medal shared with Junior.
=Final Standing=
3rd World Chess Software Championship 2013, Yokohama, JP <ref>[https://icga.leidenuniv.nl/?page_id=633 WCSC 2013] - [[ICGA]]</ref>:
{| class="wikitable"
|-
! #
! Program
! CC
! R1
! R2
! R3
! R4
! R5
! R6
! R7
! R8
! R9
! R10
! P
|-
! 1
| style="text-align:left;" | [[Hiarcs]]
! GB
| style="text-align:right;" | 4w½
| style="text-align:right;" | 6b1
| style="text-align:right;" | 5w1
| style="text-align:right;" | 2b1
| style="text-align:right;" | 3w1
| style="text-align:right;" | 4b½
| style="text-align:right;" | 6w1
| style="text-align:right;" | 5b½
| style="text-align:right;" | 2w0
| style="text-align:right;" | 3b½
! 7
|-
! 2
| style="text-align:left;" | [[Pandix]]
! HU
| style="text-align:right;" | 6w1
| style="text-align:right;" | 5b½
| style="text-align:right;" | 3w0
| style="text-align:right;" | 1w0
| style="text-align:right;" | 4b½
| style="text-align:right;" | 6b1
| style="text-align:right;" | 5w½
| style="text-align:right;" | 3b1
| style="text-align:right;" | 1b1
| style="text-align:right;" | 4w1
! 6½
|-
! 3
| style="text-align:left;" | [[Junior]]
! IL
| style="text-align:right;" | 5b1
| style="text-align:right;" | 4w½
| style="text-align:right;" | 2b1
| style="text-align:right;" | 6w1
| style="text-align:right;" | 1b0
| style="text-align:right;" | 5w½
| style="text-align:right;" | 4b1
| style="text-align:right;" | 2w0
| style="text-align:right;" | 6b1
| style="text-align:right;" | 1w½
! 6½
|-
! 4
| style="text-align:left;" | [[Jonny]]
! DE
| style="text-align:right;" | 1b½
| style="text-align:right;" | 3b½
| style="text-align:right;" | 6w1
| style="text-align:right;" | 5b½
| style="text-align:right;" | 2w½
| style="text-align:right;" | 1w½
| style="text-align:right;" | 3w0
| style="text-align:right;" | 6b1
| style="text-align:right;" | 5w1
| style="text-align:right;" | 2b0
! 5½
|-
! 5
| style="text-align:left;" | [[Shredder]]
! DE
| style="text-align:right;" | 3w0
| style="text-align:right;" | 2w½
| style="text-align:right;" | 1b0
| style="text-align:right;" | 4w½
| style="text-align:right;" | 6b1
| style="text-align:right;" | 3b½
| style="text-align:right;" | 2b½
| style="text-align:right;" | 1w½
| style="text-align:right;" | 4b0
| style="text-align:right;" | 6w1
! 4½
|-
! 6
| style="text-align:left;" | [[Merlin (HU)|Merlin]]
! HU
| style="text-align:right;" | 2b0
| style="text-align:right;" | 1w0
| style="text-align:right;" | 4b0
| style="text-align:right;" | 3b0
| style="text-align:right;" | 5w0
| style="text-align:right;" | 2w0
| style="text-align:right;" | 1b0
| style="text-align:right;" | 4w0
| style="text-align:right;" | 3w0
| style="text-align:right;" | 5b0
! 0
|}
{| class="wikitable"
|-
! #
! Program
! CC
! Hi
! Pa
! Ju
! Jo
! Sh
! Me
! P
! W
! D
! L
|-
! 1
| style="text-align:left;" | [[Hiarcs]]
! GB
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | 01
| style="text-align:center;" | 1½
| style="text-align:center;" | ½½
| style="text-align:center;" | 1½
| style="text-align:center;" | 11
! 7
| style="text-align:right;" | 5
| style="text-align:right;" | 4
| style="text-align:right;" | 1
|-
! 2
| style="text-align:left;" | [[Pandix]]
! HU
| style="text-align:center;" | 01
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | 01
| style="text-align:center;" | 1½
| style="text-align:center;" | ½½
| style="text-align:center;" | 11
! 6½
| style="text-align:right;" | 5
| style="text-align:right;" | 3
| style="text-align:right;" | 2
|-
! 2
| style="text-align:left;" | [[Junior]]
! IL
| style="text-align:center;" | ½0
| style="text-align:center;" | 01
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | ½1
| style="text-align:center;" | ½1
| style="text-align:center;" | 11
! 6½
| style="text-align:right;" | 5
| style="text-align:right;" | 3
| style="text-align:right;" | 2
|-
! 4
| style="text-align:left;" | [[Jonny]]
! DE
| style="text-align:center;" | ½½
| style="text-align:center;" | ½0
| style="text-align:center;" | 0½
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | 1½
| style="text-align:center;" | 11
! 5½
| style="text-align:right;" | 3
| style="text-align:right;" | 5
| style="text-align:right;" | 2
|-
! 5
| style="text-align:left;" | [[Shredder]]
! DE
| style="text-align:center;" | ½0
| style="text-align:center;" | ½½
| style="text-align:center;" | 0½
| style="text-align:center;" | ½0
| style="text-align:center;" | '''xx'''
| style="text-align:center;" | 11
! 4½
| style="text-align:right;" | 2
| style="text-align:right;" | 5
| style="text-align:right;" | 3
|-
! 6
| style="text-align:left;" | [[Merlin (HU)|Merlin]]
! HU
| style="text-align:center;" | 00
| style="text-align:center;" | 00
| style="text-align:center;" | 00
| style="text-align:center;" | 00
| style="text-align:center;" | 00
| style="text-align:center;" | '''xx'''
! 0
| style="text-align:right;" | 0
| style="text-align:right;" | 0
| style="text-align:right;" | 10
|}
* [https://en.wikipedia.org/wiki/ISO_3166-1 CC Country Codes]
=Participants=
3rd World Chess Software Championship 2013, Yokohama, JP <ref>[https://www.game-ai-forum.org/icga-tournaments/tournament.php?id=269 3rd World Computer Chess Championship (Software)]</ref> , Uniform hardware: [[Intel]] 4 cores.
{| class="wikitable"
|-
! Program
! CC
! Authors
! Operators
|-
| [[Hiarcs]]
! GB
| [[Mark Uniacke]]
| [[Harvey Williamson]]
|-
| [[Jonny]]
! DE
| [[Johannes Zwanzger]]
|
|-
| [[Junior]]
! IL
| [[Amir Ban]], [[Shay Bushinsky]]
| [[Amir Ban]]
|-
| [[Merlin (HU)|Merlin]]
! HU
| [[Balázs Jako|Balázs Jákó]]
|
|-
| [[Pandix]]
! HU
| [[Gyula Horváth]]
|
|-
| [[Shredder]]
! DE
| [[Stefan Meyer-Kahlen]]
|
|}
* [https://en.wikipedia.org/wiki/ISO_3166-1 CC Country Codes]
=Photos & Games=
<ref>[https://icga.leidenuniv.nl/wp-uploads/conference/WCSC/wcsc2013.pgn wcsc2013.pgn]</ref> <ref>[https://icga.leidenuniv.nl/wp-uploads/conference/WCSC/WCSC%202013.pdf WCSC 2013 - report] (pdf)</ref>
==Round 1==
<ref>[https://icga.leidenuniv.nl/?page_id=770&wppa-album=1&wppa-cover=0&wppa-occur=1&wppa-photo=6 Photos 2013 Events: day 1] by [[Jan Krabbenbos]], August 13, 2013</ref>
===Pandix - Merlin===
[[FILE:WCSC2013_R1.jpg|none|border|text-bottom|link=https://icga.leidenuniv.nl/?page_id=770&wppa-album=1&wppa-cover=0&wppa-occur=1&wppa-photo=6]]
[[Pandix]] - [[Merlin (HU)|Merlin]], [[Balázs Jako|Balázs Jákó]] and [[Gyula Horváth]], [[Mark Watkins]] wondering about Pandix' 1.a4
<pre>
[Event "WCSC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.12"]
[Round "1.2"]
[White "Pandix"]
[Black "Merlin"]
[Result "1-0"]
1.a4 e5 2.e4 Nf6 3.Nc3 Bb4 4.Nf3 O-O 5.Nxe5 d5 6.Be2 dxe4 7.d4 exd3 8.Nxd3 Bxc3+
9.bxc3 Ne4 10.Bb2 Qg5 11.O-O Re8 12.Re1 Bf5 13.Qc1 Qxc1 14.Raxc1 Na6 15.g4 Bd7
16.Bf3 Nd6 17.a5 Rad8 18.Kg2 Bb5 19.Ba3 Nc4 20.Be7 Rdb8 21.Rca1 c6 22.h4 h6 23.Kg3
Rba8 24.Bg2 Rab8 25.g5 hxg5 26.hxg5 Nc7 27.Bc5 Rxe1 28.Rxe1 b6 29.Bd4 Nxa5 30.Re7
Bxd3 31.Rxc7 Bxc2 32.Rxa7 g6 33.Bf6 c5 34.Bd5 Rf8 35.Re7 Bd1 36.f3 Rd8 37.Re1 Kf8
38.Rh1 Ke8 39.Rh8+ Kd7 40.Rxd8+ Kc7 41.Bxf7 1-0
</pre>
The game Pandix – Merlin started with a psychological move 1. A4. Black replied in the normal mode but had to play without opening book. The game continued as reversed Ruy Lopez. White clearly had some difficulties and although black’s play was strong it was not convincing. Despite its first move which weakened the queen side black could not keep the advantage on the table. Slowly white came into the game and turned the tables. From that moment onwards the white player continued to expand space, initiatives and threats. For black there was no opportunity to stop the stream of ideas and threats which came to him. Finally he lost by an elementary regrouping of pieces.
===Shredder - Junior===
[[FILE:WCSC2013R1ShredderJunior.jpg|none|border|text-bottom|link=https://icga.leidenuniv.nl/?page_id=770&wppa-album=1&wppa-photo=7&wppa-cover=0&wppa-occur=1]]
[[Shredder]] - [[Junior]], [[Ingo Althöfer]] watching, [[Stefan Meyer-Kahlen]] and [[Amir Ban]]
<pre>
[Event "WCSC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.12"]
[Round "1.3"]
[White "Shredder"]
[Black "Junior"]
[Result "0-1"]
1.e4 e6 2.d4 d5 3.Nd2 Be7 4.Ngf3 Nf6 5.Bd3 c5 6.exd5 Qxd5 7.dxc5 Nbd7 8.Qe2 Nxc5
9.Bc4 Qd6 10.Nb3 O-O 11.O-O b6 12.Ne5 Bb7 13.Bf4 Nxb3 14.axb3 Qd4 15.Bg3 Qe4 16.f3
Qxe2 17.Bxe2 Nh5 18.Bf2 Nf4 19.Bb5 a6 20.Bc6 Bxc6 21.Nxc6 Bf6 22.Rad1 a5 23.c3 b5
24.Rfe1 Rfc8 25.Na7 Rcb8 26.Bg3 g5 27.Nc6 Rbc8 28.Ne5 Rcd8 29.Nd7 Bg7 30.h4 h6
31.Bxf4 gxf4 32.Rd3 b4 33.cxb4 axb4 34.Re4 Ra7 35.Ne5 Rd5 36.Rxd5 Ra1+ 37.Kh2 exd5
38.Re2 Rd1 39.h5 d4 40.Nc4 Bf6 41.Re4 Bg5 42.g4 d3 43.Kg2 Kg7 44.Rd4 Bf6 45.Rd5 Bc3
46.Rd6 f6 47.Rd7+ Kf8 48.Kf2 Ke8 49.Rd6 Ke7 50.Rd5 d2 51.Rd3 f5 52.Nb6 Kf7 53.Nd5
Re1 54.bxc3 d1=Q 55.Rxd1 Rxd1 56.c4 fxg4 57.fxg4 Rb1 58.Nxb4 Kf6 59.Nd3 Kg5 60.b4
Kxg4 61.b5 Rb3 62.Ne5+ Kxh5 63.Nf3 Rb2+ 0-1
</pre>
They have met each other many times, Shredder and Junior. They have both been world champion with currently Junior holding the WCCC title. Their contests are always interesting. The current game does not form an exception. A quiet but still complex French start of the game resulted in black attempting to take the initiative. Shredder replied cautiously but black continued with challenging moves. The result was complex position even though the queens had already left the board. On the square millimeter the fight continued. Junior played quite inventively and succeeded to widen its initiative to pressure on the white position. Even with a few pawns and only a rook and a minor piece there were huge complications. Black was able to complete the series of pressure moves by a nice bishop sacrifice which could not be accepted by white. Declining the offer did not get any relief and after five more strong moves white resigned.
==Showdown in Round 10==
<ref>[https://icga.leidenuniv.nl/?page_id=883 Photos 2013 Events: day 7], [[ICGA]]</ref>
[[FILE:WCSC2013R10JuniorHiarcs.JPG|none|border|text-bottom|640px|link=https://icga.leidenuniv.nl/?page_id=883&wppa-album=8&wppa-cover=0&wppa-occur=1&wppa-photo=112]]
[[Junior]] - [[Hiarcs]], [[Harvey Williamson]], [[David Levy]], [[Jaap van den Herik]] and [[Amir Ban]], back of [[Johan de Koning]] (?)
<pre>
[Event "WCSC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.18"]
[Round "10.3"]
[White "Junior"]
[Black "Hiarcs"]
[Result "1/2-1/2"]
1.Nf3 Nf6 2.c4 c6 3.d4 d5 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O dxc4
9.Bxc4 b5 10.Bd3 Bb7 11.e4 e5 12.dxe5 Nxe5 13.Nxe5 Bxe5 14.h3 b4 15.Na4 Bd4
16.Be3 Bxe3 17.fxe3 Nd7 18.a3 a5 19.e5 h6 20.e6 fxe6 21.Bc4 Qe7 22.Qe4 Rxf1+
23.Rxf1 Re8 24.axb4 axb4 25.Rd1 Nf6 26.Qd4 Kh8 27.Nc5 Nd5 28.Bd3 Kg8 29.Rf1
Rf8 30.Rc1 Bc8 31.Qe4 g5 32.Nb3 Nf6 33.Qg6+ Qg7 34.Qxg7+ Kxg7 35.Rxc6 g4
36.Rc7+ Kg8 37.Bc4 Nd5 38.Bxd5 exd5 39.hxg4 Bxg4 40.Rb7 h5 41.Nd4 Re8 42.Kf2
Rf8+ 43.Nf3 Bf5 44.Rxb4 Be4 45.Kg3 Kh8 46.Rb5 Rg8+ 47.Kh2 Kh7 48.b4 Bxf3
49.gxf3 Re8 50.Rxd5 Rxe3 51.Kg3 Kg6 52.Rd6+ Kg5 53.Rd4 Ra3 54.Rd5+ Kg6 55.Rd6+
Kg5 56.Rd4 Kf5 57.Rh4 Kg5 58.Re4 Rb3 59.Rh4 Rb1 60.b5 Rxb5 61.f4+ Kg6
1/2-1/2
</pre>
==Price giving==
[[FILE:WCSC2013Pricegiving.jpg|none|border|text-bottom|640px|link=https://icga.leidenuniv.nl/?page_id=883&wppa-album=8&wppa-cover=0&wppa-occur=1&wppa-photo=115]]
[[Amir Ban]], [[Harvey Williamson]] and [[Gyula Horváth]], Silver for [[Junior]], Gold for [[Hiarcs]] and Silver for [[Pandix]]
=See also=
* [[17th Computer Olympiad]]
* [[CG 2013]]
* [[WCCC 2013]]
=Publications=
* [[ICGA#Board|The Board of ICGA]] ('''2012'''). ''Announcement of the Yokohama Events''. [[ICGA Journal#34_4|ICGA Journal, Vol. 35, No. 4]]
* [[ICGA#Board|The Board of ICGA]] ('''2013'''). ''Rules for the 20th World Computer-Chess Championship''. [[ICGA Journal#36_1|ICGA Journal, Vol. 36, No. 1]], [https://icga.leidenuniv.nl/wp-uploads/2013/02/RULES-FOR-THE-20th-WCCC-and-other-tournaments-1.pdf pdf]
* [[Jan Krabbenbos]], [[Guy Haworth]], [[Jaap van den Herik]] ('''2013'''). ''The 3rd World Chess Software Championship''. [[ICGA Journal#36_3|ICGA Journal, Vol. 36, No. 3]]
* [[Eric Hallsworth]] ('''2013'''). ''Computer Chess World Championships 2013''. [[Selective Search]] 166, pp. 32, [http://www.chesscomputeruk.com/SS_166.pdf pdf] hosted by [[Mike Watters]]
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=46518 ICGA Olympiad 2013: Yokohama, Aug 12-18!] by [[Harm Geert Muller]], [[CCC]], December 21, 2012
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=26290 ICGA Computer Olympiad 2013: Yokohama, Aug 12-18] by [[Harm Geert Muller]], [[Computer Chess Forums|Rybka Forum]], December 21, 2012
* [http://hiarcs.net/forums/viewtopic.php?t=6024&sid=c476b51a9eb601cbe0c45ab28fd4ee69 WCCC & WCSC 2013 in Yokohama] by [[Harvey Williamson]], [[Computer Chess Forums|Hiarcs Forum]], June 04, 2013
* [http://hiarcs.net/forums/viewtopic.php?p=60550#60550 Hiarcs games in WCSC Yokahama 2013] by [[Harvey Williamson]], [[Computer Chess Forums|Hiarcs Forum]], August 11, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49001 Hiarcs wins 3rd World Chess Software Championship] by [[Gerd Isenberg]], [[CCC]], August 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49002 HIARCS wins the World Chess Software Championship] by [[Ian Osgood]], [[CCC]], August 18, 2013
=External Links=
* [https://icga.leidenuniv.nl/?page_id=633 WCSC 2013] - [[ICGA]]
: [https://icga.leidenuniv.nl/?p=619 Change of Building for the ICGA Events in Yokohama] - [[ICGA]], August 08, 2013
* [https://www.game-ai-forum.org/icga-tournaments/event.php?id=44 Yokohama 2013 (ICGA Tournaments)]
: [https://www.game-ai-forum.org/icga-tournaments/tournament.php?id=269 3rd World Computer Chess Championship (Software)]
* [http://chesstigersontour.wordpress.com/2013/08/18/chess-in-yokohama-2-tournaments-2-winners/ Chess in Yokohama: 2 tournaments, 2 winners], [http://chesstigersontour.wordpress.com/ Chess Tigers on Tour], August 18, 2013
=References=
<references />
'''[[World Chess Software Championship|Up one Level]]'''
