WCCC 2013

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Home * Tournaments * World Computer Chess Championship * 20th WCCC Yokohama 2013

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Kyōsei-kan [1]

20th World Computer Chess Championship 2013, from August 12, to August 17, 2013, Keio University Kyōsei-kan, the Collaboration Complex [2] , Yokohama, Japan, in conjunction with the WCSC 2013, the 8th International Computers and Games Conference and the 17th Computer Olympiad. Double round robin, all moves in 1 hour 45 minutes plus an increment of 15 seconds per move [3].

Junior by Amir Ban and Shay Bushinsky defended its title after a thrilling draw versus runner-up Jonny by Johannes Zwanzger in the last round. Jonny ran on the btrzx3 cluster [4] [5] [6] of the University of Bayreuth using 2,400 AMD x86-64 cores in total. Junior played with 48 threads on a 24 Core Intel Dual Xeon i5, Ivy Bridge, Hyper-threading enabled [7] .

Final Standing

20th World Computer Chess Championship 2013, Yokohama, JP [8]:

# Program CC R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 P
1 Junior IL 6w1 5w1 3b1 4w1 2b0 6b1 5b½ 3w1 4b½ 2w½
2 Jonny DE 5b½ 3w1 4b½ 6b1 1w1 5w½ 3b½ 4w½ 6w1 1b½ 7
3 HIARCS GB 4w½ 2b0 1w0 5b1 6w1 4b½ 2w½ 1b0 5w1 6b1
4 Pandix HU 3b½ 6b1 2w½ 1b0 5w1 3w½ 6w1 2b½ 1w½ 5b0
5 Shredder DE 2w½ 1b0 6w1 3w0 4b0 2b½ 1w½ 6b1 3b0 4w1
6 Merlin HU 1b0 4w0 5b0 2w0 3b0 1w0 4b0 5w0 2b0 3w0 0
# Program CC Ju Jo Hi Pa Sh Me P W D L
1 Junior IL xx ½0 11 ½1 11 6 3 1
2 Jonny DE xx ½½ ½½ 11 7 4 6 0
3 HIARCS GB 00 ½0 xx ½½ 11 11 4 3 3
3 Pandix HU ½0 ½½ ½½ xx 10 11 3 5 2
5 Shredder DE ½½ 00 10 xx 11 3 3 4
6 Merlin HU 00 00 00 00 00 xx 0 0 0 10


20th World Computer Chess Championship 2013, Yokohama, JP [9]

Program CC Authors Operators Cores / Threads Architecture GHz
HIARCS GB Mark Uniacke Harvey Williamson 16 16 Intel Xeon E5, Ivy Bridge 3.1
Jonny DE Johannes Zwanzger 2,400 2,400 AMD x86-64 2.8
Junior IL Amir Ban, Shay Bushinsky
Alon Greenfeld
Amir Ban 24 48 Intel Dual Xeon i5, Ivy Bridge 2.7
Merlin HU Balázs Jákó 4 Intel i7 3740, Ivy Bridge 2.7
Pandix HU Gyula Horváth 4 Intel i7 3740, Ivy Bridge 2.7
Shredder DE Stefan Meyer-Kahlen 16 16 Intel 3.1

Photos & Games

[10] [11]

Round 1


Shredder - Jonny, Johannes Zwanzger and Stefan Meyer-Kahlen, Mark Watkins engrossed in a book [12]

[Event "WCCC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.12"]
[Round "1.3"]
[White "Shredder"]
[Black "Jonny"]
[Result "1/2-1/2"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.c3 Be7 6.O-O O-O 7.Re1 Bd7 8.Nbd2 Re8
9.Nf1 Bf8 10.a4 h6 11.Ne3 Be6 12.a5 a6 13.Ba4 Bd7 14.b4 Ne7 15.Bb3 Ng6 16.Qc2
c6 17.h3 Rb8 18.Nc4 Be6 19.Be3 d5 20.exd5 Nxd5 21.Bd2 Qf6 22.Nfxe5 Bxh3 23.d4
Bf5 24.Qd1 Nxe5 25.Nxe5 Bd6 26.f4 Rbd8 27.Qf3 Be6 28.Re4 Bxe5 29.Rxe5 Nxf4
30.Rae1 Ng6 31.Qxf6 gxf6 32.R5e2 h5 33.Kf2 Rd6 34.Rh1 h4 35.Bc2 Rd7 36.g3 hxg3+
37.Kxg3 Rde7 38.Rf1 Bc4 39.Rxe7 Nxe7 40.Rxf6 Nd5 41.Rf3 Kg7 42.Bf5 Be2 43.Rf2
Bc4 44.Kf3 Kf6 45.Bh7 Ke6 46.Rh2 Rd8 47.Rh1 Kd6 48.Bf5 Rg8 49.Bh7 Re8 50.Rh6+
Kc7 51.Be4 Kb8 52.Rh2 Ka7 53.Bf5 54.Bd7 Rd8 55.Bf5 Re8 56.Bc2 Ka7 57.Bd1 b5
58.Rh6 Kb7 59.Kf2 Bd3 60.Rh5 f6 61.Rh4 Re7 62.Bf3 Kc7 63.Rh8 Be4 64.Be2 Rg7
65.Rh2 Kb8 66.c4 bxc4 67.Bxc4 Kb7 68.Bf1 Rg4 69.Be2 Rg8 70.Rh6 Rg2+ 71.Kf1 Rg3
72.Kf2 Rg8 73.Bf1 Rg4 74.Bh3 Rg8 75.Rh4 Bd3 76.Bg2 1/2-1/2

The drawn game between Shredder and Jonny was the most interesting fight of the first round. After one hour of play the position was equal and so white attempted to increase the tension by sacrificing a pawn. The pressure, which resulted from the sacrifice gave white some play and hope for the future. Yet Jonny did not play materialistically but looked for dynamic opportunities. It found the best way to bring his strategic ideas into practice by returning the advantage of being a pawn up. With material at both sides equal, no side was able to take the initiative for a breakthrough or for penetrating the opponent’s position. The resultant draw was both sides acceptable.

Round 3

Wccc2013 R3.jpg

HIARCS - Junior, Harvey Williamson and Amir Ban [13]

[Event "WCCC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.13"]
[Round "3"]
[White "Hiarcs"]
[Black "Junior"]
[Result "0-1"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4 Qc7
9.f4 Qb6 10.c4 Ne3 11.Qd3 Nf5 12.g4 Nd4 13.Rb1 c5 14.Bg2 Bb7 15.Be3 a5 16.a3 h5
17.g5 Rb8 18.b4 Qd8 19.Bxd4 cxd4 20.c5 Be7 21.O-O O-O 22.Qe2 g6 23.Rfd1 Qc7
24.Rxd4 Bxe4 25.Bxe4 Bxc5 26.bxc5 Rxb1+ 27.Bxb1 Rb8 28.Qc2 Qb7 29.Ba2 Qf3 30.Bc4
Qxa3 31.Bf1 Rb2 32.Rd3 Qa2 33.Qc3 Rxh2 34.Rf3 a4 35.Qa3 Qc2 36.Qd3 Qb2 37.Qc3 Qa2
38.Qa3 Qc2 39.Qd3 Qb2 40.Qe4 Qa2 41.Qe1 Rd2 42.Qc1 Qd5 43.Qc3 Kg7 44.Rg3 Rd1
45.Rg2 Rb1 46.Rf2 Rb3 47.Qc4 Qd1 48.f5 gxf5 49.g6 Rg3+ 50.Kh1 Rxg6 51.Qd3 Qg4
52.Bg2 Qh4+ 53.Kg1 Qb4 54.Rc2 h4 55.Kh2 Qf4+ 56.Kh1 Rg3 57.Qc4 Qg5 58.Qd4 f4
59.Qf2 f3 60.Bf1 a3 61.Qe1 h3 0-1

The Junior team is well known for their creative programming skills. The current program excels in unexpected moves, marvelous variations and beautiful completions of games. In this round Junior played Hiarcs. And for the uninformed spectator it looked like a game were Hiarcs was dictating the position and possibilities. However on move 25 Junior played an unexpected sacrifice of the bishop. The compensation was a pawn and some dynamical play. For Hiarcs the situation was more difficult than expected. His position was full of weak squares that had to be protected. With a piece up it seemed not a very difficult task but Junior managed to pose time and again new problems to solve by Hiarcs. Although computers cannot be exhausted by continuous pressure Hiarcs must have been disappointed that it was unable to find a win. Still trying to find an opportunity it played 33. Qc3 whereas 33.c6 Rxc2 34. Dxc7 would have been a complex alternative. As the game went now Hiarcs could only hope for a draw but it did not realize that it should aim for a draw instead of a win. Hence it played 40.Qe4 and thereafter Junior took its chances and played well thought moves which brought Hiarcs into problems. In the end of the game we saw three black pawns moving forward, the a pawn, the f pawn and the h pawn. It forced Hiarcs to resign.

Round 8

Wccc2013 r8.jpg

Round 8: Jonny-Pandix, Junior-HIARCS, Merlin-Shredder [14]

[Event "WCCC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.16"]
[Round "8.1"]
[White "Merlin"]
[Black "Shredder"]
[Result "0-1"]

1.Nf3 Nf6 2.c4 b6 3.g3 c5 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6
9.Bg5 a6 10.Bxf6 Bxf6 11.Qd3 Ra7 12.Rad1 Be7 13.Nd4 Bxg2 14.Kxg2 Nd7 15.Qe4
Rc7 16.Nc6 Qa8 17.Nxe7 Qxe4+ 18.Nxe4 Kxe7 19.Rd2 Ne5 20.Nxd6 Rd8 21.c5 bxc5
22.Rfd1 Rcd7 23.Ne4 f5 24.R2xd7+ Rxd7 25.Rxd7+ Nxd7 26.Nd2 Kd6 27.b3 Kd5
28.Kf3 Kd4 29.Nc4 Kc3 30.e4 Nf6 31.exf5 exf5 32.Ne5 Nd5 33.Nd7 c4 34.bxc4 Kxc4
35.Nf8 a5 36.Ne6 g6 37.h4 a4 38.Nd8 Nc3 39.a3 Kb3 40.Ne6 Ne4 41.g4 Kxa3
42.gxf5 gxf5 0-1

[Event "WCCC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.16"]
[Round "8.2"]
[White "Junior"]
[Black "Hiarcs"]
[Result "1-0"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 e5 7.Nde2 h5 8.Bg5 Be7
9.Bxf6 Bxf6 10.Nd5 Bg5 11.Nec3 Be6 12.Bc4 Nc6 13.O-O Rc8 14.a4 g6 15.Ra3 O-O
16.Bb3 Kg7 17.Qd3 Qa5 18.Qg3 Bd8 19.Qd3 Qc5 20.Ne2 Na5 21.Nec3 Bh4 22.Ba2 Nc6
23.Qd2 Nd4 24.a5 Bd8 25.b4 Qc6 26.f4 Re8 27.f5 gxf5 28.exf5 Nxf5 29.Rf2 Ng3
30.Rf3 Nf5 31.Qd3 Nh4 32.Rf2 f5 33.g3 Ng6 34.Ne3 f4 35.Bxe6 Rxe6 36.Nf5+ Kh8
37.Qe2 Qd7 38.Qxh5+ Qh7 39.Qxh7+ Kxh7 40.Nd5 Bf6 41.Re2 Rc4 42.Kf1 Bg7 43.Rf2
Bh6 44.Rb3 Bf8 45.Rbf3 e4 46.Nxf4 Nxf4 47.R3xf4 Rxb4 48.Rh4+ Kg8 49.Rg4+ Kh7
50.Rff4 Rg6 51.Rgh4+ Kg8 52.Rfxe4 Rb5 53.Rh5 d5 54.Reh4 Bc5 55.R5h8+ Kf7
56.R4h7+ Kf6 57.g4 Ke5 58.R7h5 Ke6 59.Rb8 Rf6 60.Re8+ Kf7 61.Re5 Bd6 62.Re2
Bf8 63.Kg2 Kg8 64.Re8 Rxa5 65.Nd4 b6 66.Rg5+ Kf7 67.Ra8 Be7 68.Ra7 Ra4 69.c3
Ra2+ 70.Kg3 Rd2 71.Nf5 Rxf5 72.Rxf5+ Ke6 73.Rxa6 Bd8 74.Rf3 Rd1 75.Ra8 1-0

[Event "WCCC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.16"]
[Round "8.3"]
[White "Jonny"]
[Black "Pandix"]
[Result "1/2-1/2"]

1.c4 e5 2.g3 Nf6 3.Bg2 d5 4.cxd5 Nxd5 5.Nf3 Nc6 6.O-O Nb6 7.b3 Be7 8.Bb2 f6
9.d4 e4 10.Ne1 f5 11.f3 exf3 12.Nxf3 Nd5 13.Qd3 O-O 14.Nc3 Be6 15.e4 Nxc3
16.exf5 Bxf5 17.Qxc3 Be4 18.a3 Qd5 19.Rae1 Rae8 20.Re3 Bf6 21.Rfe1 Re7 22.h3
h5 23.Qc4 Qxc4 24.bxc4 Bxf3 25.Bxf3 Rxe3 26.Rxe3 Nxd4 27.Bxb7 Rb8 28.Bd5+ Kf8
29.Bc3 Nf5 30.Rd3 Bxc3 31.Rxc3 Nd4 32.Re3 Rb1+ 33.Kf2 Rb2+ 34.Kf1 c6 35.Be4
Kf7 36.c5 Kf6 37.Rd3 Rb1+ 38.Kf2 Rb2+ 39.Kf1 Rb1+ 1/2-1/2

Round 10

[Event "WCCC 2013"]
[Site "Yokohama, Japan"]
[Date "2013.08.17"]
[Round "10.3"]
[White "Junior"]
[Black "Jonny"]
[Result "1/2-1/2"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.Re1 Bc5 8.c3 Bb6 9.d4
d6 10.Be3 O-O 11.Nbd2 exd4 12.cxd4 Na5 13.Bc2 Re8 14.a4 h6 15.h3 Nxe4 16.axb5 Nxd2
17.Nxd2 axb5 18.Qh5 Qd7 19.Bxh6 Bxd4 20.Bf5 Rxe1+ 21.Rxe1 g6 22.Bxd7 gxh5 23.Bxb5 Bxb2
24.Rb1 Bg7 25.Bxg7 Kxg7 26.Be2 h4 27.Rb4 c5 28.Rg4+ Kf6 29.Rxh4 d5 30.Nf1 Nc6 31.Ne3
Nd4 32.Bd3 Ke7 33.Rh5 Kd6 34.Rh6+ Ne6 35.Rh7 c4 36.Nxc4+ dxc4 37.Bxc4 Ra1+ 38.Kh2
Ke7 39.Bxe6 Kxe6 40.Rh6+ Ke5 41.Rh5+ Kf4 42.Rh4+ Kg5 43.Rg4+ Kf5 44.f3 Rc1 45.h4 Rc2
46.Kh3 Rb2 47.Rg5+ Kf4 48.Rg4+ Ke5 49.Rg5+ Ke6 50.h5 Rb1 51.Kh2 Kf6 52.h6 Be4 53.Rc5
Bf5 54.g4 Bd7 55.g5+ Kg6 56.Kg3 Ra1 57.Rd5 Bf5 58.f4 Ra3+ 59.Kf2 Bg4 60.Rd6+ Be6
61.Rd8 Kh7 62.Rb8 Bg4 63.Rf8 Bh5 64.Kg2 Ra5 65.Rc8 Bg6 66.Rc7 Be4 67.Kf2 Kg6 68.Ke3
Bf5 69.Rc6+ Be6 70.Ke4 Rb5 71.Ra6 Rc5 72.Ra8 Kh7 73.Ra7 Rd5 74.Kf3 Rf5 75.Ke3 Kg6
76.Ra8 Rd5 77.Rg8+ Kh7 78.Rg7+ Kh8 79.Ke4 Rb5 80.Kd4 Bb3 81.Kd3 Rb6 82.Kd4 Rg6
83.Rxg6 fxg6 84.f5 gxf5 85.Ke5 Bc2 86.g6 Kg8 87.Kf4 Bb1 88.Kg5 f4 89.Kxf4 Ba2

Price giving



Blitz Title for Shredder [15]: Gyula Horváth, Stefan Meyer-Kahlen, Johannes Zwanzger and Jaap van den Herik

WCCC 2013


Jaap van den Herik, Gyula Horváth, Amir Ban, Johannes Zwanzger, Harvey Williamson and David Levy
Gold and Shannon Trophy for Junior, Silver for Jonny, and Bronze for HIARCS and Pandix [16]

See also


Forum Posts

Re: WCCC 2013 in Yokohama by Harvey Williamson, CCC, August 09, 2013

External Links

Blitz 2013 - The new champion is Shredder
WCCC Entries - ICGA, June 06, 2013
Change of Building for the ICGA Events in Yokohama - ICGA, August 08, 2013
Games Tournament 2013 - ICGA
20th World Computer Chess Championship - Yokohama 2013 (ICGA Tournaments)


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