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a Chess Engine Communication Protocol and since version 4.00 UCI compatible chess program by Johannes Zwanzger with executables for Windows and Linux, able to play Chess960, at times Freeware. Jonny uses a 0x88 board representation, and applies a sophisticated distributed and parallel search. Jonny played all World Computer Chess Championships since Graz 2003, and became Blitz champion at the WCCC 2011, runner-up at the WCCC 2013, and World Computer Chess Champion at the WCCC 2015.

Tournament Play

Jonny played various IPCCC, the DOCCC 2010 and CCT Tournaments, and was two times runner up at the Livingston Chess960 Computer World Championship, the Chess960CWC 2005 and Chess960CWC 2006. At the WCCC 2011 Jonny ran on a a cluster of 100 PCs with eight cores each, and at the WCCC 2013 in Yokohama, even with 2400 cores of the btrzx3 cluster of the University of Bayreuth [1] [2] [3] [4], where Jonny was quite close to become champion - if it had won the last round versus Junior. In Fall 2013, Jonny won the PT 45 a half point ahead of its commercial rivals Shredder and Deep Fritz, running on 216 cores. At the PT 47, in November 2014, Jonny won conveniently with 7/7, running on 768 cores [5], defending its title with the same cluster at the PT 49 in October 2015. Already at the WCCC 2015 in Leiden, Jonny brought home the gold on a 2400 core cluster, thanks to upset victories against Komodo and Hiarcs. At the WCCC 2016, Jonny became runner-up, after losing the sixth game in the play-off versus Komodo, which was a 3+5 blitz game. As a slight compensation, Jonny won the blitz tournament this time a play-off versus Shredder, leaving Komodo third.

Photos & Games

WCCC 2006

Jonny - Ikarus, Blitz Champs Munjong Kolss and Johannes Zwanzger, Ulf Lorenz watching, WCCC 2006 [6]

WCCC 2013

WCCC 2013 round 1, Shredder - Jonny, Johannes Zwanzger and Stefan Meyer-Kahlen, Mark Watkins [7] [8]
[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

WCCC 2015

Jonny - Komodo

WCCC 2015, round 5, Jonny - Komodo. Sometimes, a8 and h8 are important squares for White's pieces [9] [10]
[Event "WCCC 2015"]
[Site "Leiden, The Netherlands"]
[Date "2015.07.01"]
[Round "5.3"]
[White "Jonny"]
[Black "Komodo"]
[Result "1-0"]
1.d4 c6 2.c4 Nf6 3.Nc3 d5 4.Nf3 a6 5.e3 g6 6.Bd3 Bg7 7.O-O O-O 8.Qc2 Bg4 9.Ne5 Be6
10.c5 Nbd7 11.Nxd7 Qxd7 12.Na4 Rae8 13.Nb6 Qc7 14.Bd2 Nd7 15.Na4 f6 16.f4 Bg4 17.h3
Be6 18.Kh1 Bh6 19.h4 Bg7 20.h5 f5 21.hxg6 hxg6 22.g4 Nf6 23.g5 Ne4 24.Kg2 Qb8 25.b3
Bd7 26.Nb6 Bc8 27.Rh1 Kf7 28.Raf1 Rh8 29.Ba5 Be6 30.Kf3 Rxh1 31.Rxh1 Rh8 32.Qg2 Qg8
33.Rh3 Rxh3+ 34.Qxh3 Ke8 35.Qh2 Kf7 36.Qh4 Qh8 37.Qxh8 Bxh8 38.Ke2 Bg7 39.Kd1 Ke8
40.Kc2 Bf7 41.Be1 Bg8 42.Kd1 Bf8 43.Na4 Bf7 44.Ke2 Kd7 45.Nb6+ Kd8 46.Ba5 Ke8 47.Na4
Be6 48.Bc7 Bg7 49.Ke1 Bf7 50.Nb6 Bg8 51.Kd1 Bf7 52.Kc1 Bg8 53.Kc2 Bh8 54.Bb8 Bg7
55.Kd1 Kd8 56.Bb1 Ng3 57.Bc2 Ne4 58.Na4 Kd7 59.Ke1 Bf7 60.Ke2 Kc8 61.Ba7 Kd8 62.Nb2
Kc7 63.Bb6+ Kd7 64.Kf1 Nc3 65.Nd1 Ne4 66.Kg2 Be6 67.Kg1 Bg8 68.Nb2 Ke8 69.Kf1 Kd7
70.Nd3 Nc3 71.Kf2 Ne4+ 72.Ke1 Kc8 73.Ba5 Kd7 74.a3 Bf7 75.a4 Be8 76.Kf1 Bf7 77.Bd1
Kc8 78.Ke1 Kd7 79.Bf3 Be6 80.Kf1 Bf7 81.Ke2 Ng3+ 82.Ke1 Ne4 83.Kd1 Ng3 84.Bg2 Kc8
85.Ke1 Kd7 86.Kd2 Ne4+ 87.Kc1 Be6 88.Kc2 Bf7 89.Kb2 Be6 90.Kb1 Kc8 91.Kc2 Kd7 92.Kc1
Bg8 93.Kd1 Ng3 94.Kc2 Ne4 95.Ne1 Kc8 96.Bb6 Bf7 97.Kc1 Kd7 98.Bf3 Ng3 99.Kd2 Nf1+
100.Kd3 Ng3 101.Kc3 Ne4+ 102.Kb2 Ng3 103.Kc2 Nf1 104.Ng2 Bg8 105.Kc3 Ng3 106.Kb2 Ne4
107.Kc2 Bf7 108.Kd3 Bf8 109.b4 Bg7 110.Kc2 Ke6 111.Ne1 Be8 112.Bg2 Kf7 113.Nd3 Bd7
114.Bc7 Bc8 115.Kc1 Bd7 116.Bb6 Be8 117.Kd1 Ke6 118.Bc7 Bf8 119.Ke1 Kf7 120.Ne5+ Ke6
121.Ke2 Bg7 122.Nd3 Bf8 123.Be5 Nc3+ 124.Kd2 Ne4+ 125.Kc1 Kf7 126.Kd1 Bd7 127.Kc2 Be8
128.Kc1 Nc3129.Nf2 Nxa4 130.Kc2 b6 131.Nd3 b5 132.Kd2 Ke6 133.Bf3 Kf7 134.Bd1 Ke6
135.Bxa4 bxa4 136.Kc3 a3 137.Kb3 Kd7 138.Kxa3 Kc8 139.Kb3 Kb7 140.Ka4 Bd7 141.Ka5 Ka7
142.Nb2 Kb7 143.Na4 Bc8 144.Nb6 Be6 145.Na8 Bc8 146.Nc7 Ka7 147.Bh8 e6 148.Na8 Kxa8
149.Kb6 Bb7 150.Kc7 Ka7 151.Bf6 a5 152.bxa5 Ba8 153.Kd7 Bb7 154.Kxe6 Ba6 155.Kf7 Bc4
156.Kxg6 Ka6 157.Kf7 Bxc5 158.g6 1-0

Hiarcs - Jonny

WCCC 2015, round 9, Hiarcs - Jonny, Harvey Williamson just resigned and Jonny is Champion
[Event "WCCC 2015"]
[Site "Leiden, The Netherlands"]
[Date "2015.07.03"]
[Round "9.2"]
[White "Hiarcs"]
[Black "Jonny"]
[Result "0-1"]
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 d6 6.O-O a6 7.Bb3 Ba7 8.h3 h6 9.Be3 Bxe3
10.fxe3 O-O 11.Nbd2 Na5 12.Bc2 c5 13.d4 Qc7 14.Bd3 c4 15.Bc2 b5 16.Nh4 Kh7 17.Rxf6
gxf6 18.Qf3 Rg8 19.Nf1 Rg5 20.Ng3 Bxh3 21.Nh5 Be6 22.d5 Rf8 23.dxe6 fxe6 24.Rf1 Nb7
25.Nxf6+ Kh8 26.Qh3 Qe7 27.Ng4 Rxf1+ 28.Kxf1 Qg7 29.Nf2 Nc5 30.Qf3 Rg3 31.Qe2 Qf6
32.Nf3 h5 33.Qd1 Nb7 34.b3 Qg6 35.Nh1 Rg4 36.Qd2 Qg7 37.bxc4 bxc4 38.Ne1 h4 39.Bd1
Qf8+ 40.Nf2 Rg7 41.Bf3 Nc5 42.Qe2 Qb8 43.Qxc4 Qb5 44.Qe2 Qxe2+ 45.Kxe2 Rc7 46.Kd2 Kg7
47.Bd1 Kf6 48.Nf3 Rh7 49.Be2 Rh8 50.Kc2 Ke7 51.c4 a5 52.Bd1 Kf6 53.Kd2 Kf7 54.Kc3 Ke7
55.Bc2 Rf8 56.Kd2 Rh8 57.Kd1 Rf8 58.Kc1 Kd7 59.Kd2 Rh8 60.Ke2 Ke7 61.Ke1 Rb8 62.Nd1
Rh8 63.Kf1 Rb8 64.Kg1 Rb4 65.Nd2 Rb8 66.Kf2 Nd7 67.Nb3 a4 68.Nd2 a3 69.Kg1 Nf6 70.Nb1
Rg8 71.Kh1 Ng4 72.Nbc3 Kd7 73.Bd3 Kc6 74.Bf1 Kc5 75.Nb5 Nf6 76.Bd3 Kb4 77.Nc7 Rc8
78.Nxe6 Nd7 79.Ng7 Nb6 80.Nf5 Rc7 81.g4 hxg3 82.Kg2 Nxc4 83.Kxg3 Nb2 84.Nf2 Nxd3
85.Nxd3+ Kc3 86.Ne1 Rc6 87.Ne7 Rc5 88.Ng6 Rb5 89.Ne7 Rb2 90.Nd5+ Kc4 91.Nb6+ Rxb6
92.Nf3 Rb2 0-1

WCCC 2016

WCCC 2016 round 5, Komodo - Jonny, Johannes Zwanzger, Erdogan Günes and Mark Lefler [11]
[Event "WCCC 2016"]
[Site "Leiden"]
[Date "2016.06.29"]
[Round "5"]
[White "Komodo"]
[Black "Jonny"]
[Result "1-0"]
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 d6 6.Bg5 h6 7.Bh4 g5 8.Bg3 a6 9.O-O Ba7
10.Nbd2 Na5 11.Bd5 O-O 12.b4 c6 13.Bxf7+ Rxf7 14.bxa5 Bg4 15.h3 Bh5 16.Qc2 Qxa5
17.d4 Bxf3 18.Nxf3 Re8 19.Rad1 Kg7 20.Rfe1 Nh5 21.Bh2 Qc7 22.dxe5 dxe5 23.Nd4 Bxd4
24.cxd4 Nf4 25.dxe5 Qxe5 26.Rd2 Re6 27.f3 Rd6 28.Rxd6 Qxd6 29.Rd1 Qe5 30.Kh1 h5
31.Bg3 h4 32.Bh2 Kh6 33.Qb3 Rg7 34.Qb4 Rf7 35.a4 Kh7 36.a5 Qf6 37.Qb1 Kh6 38.Qa2
Re7 39.Qa3 Ne6 40.Rd6 Kg7 41.Bg1 Kf7 42.Bd4 Qf4 43.Be3 Qe5 44.Rd1 Ke8 45.Qb3 Kf8
46.Bc1 Qxa5 47.Qb2 Kf7 48.Qh8 Nf8 49.Bb2 Rd7 50.Rf1 Qb5 51.Ra1 Ke8 52.Ba3 c5 53.Qe5+
Re7 54.Qxg5 b6 55.Bc1 Qc4 56.Be3 Qd3 57.Qh5+ Kd7 58.Bg5 Rh7 59.Qg4+ Ne6 60.Qf5 Rg7
61.Bf6 Rf7 62.Rxa6 Qc4 63.Ra7+ Ke8 64.Rxf7 Kxf7 65.Be5+ 1-0

Tournament Reports

See also

Forum Posts

External Links

Chess Engine



  1. ^ 'btrzx3' inaugurated at German university - Scientific Computing World, July 08, 2013
  2. ^ Linuxcluster btrzx3
  3. ^ Das Superhirn im Keller by Joachim Dankbar, Frankenpost, July 01, 2013 (German)
  4. ^ Wir sind Weltmeister (pdf) University of Bayreuth press release, July 10, 2015 (German)
  5. ^ Jonny wins PT47, CSVN
  6. ^ Photo by Gerd Isenberg
  7. ^ Photos 2013 Events: day 1, ICGA
  8. ^ wccc2013.pgn
  9. ^ WCCC 2015 photos by Gerd Isenberg
  10. ^ The Trojan Horse-2 by Karsten Müller, ChessBase News, August 18, 2015
  11. ^ WCCC 2016 photo by Gerd Isenberg, June 29, 2016

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