
The 22nd World Computer Chess Championship started on June 27, 2016. Six programs participated in a double round robin tournament of ten rounds. The tournament took place at the Leiden University and was organized by the ICGA, LIACS and LCDS. The sponsors were Google, Naturalis Biodiversity Center, the municipality of Leiden, Leiden University, Faculty of Science, ICGA, iSSC, SurfSara, Digital Game Technology and NWO Exact Sciences. It is held in conjunction with the 19th Computer Olympiad and the 15th Advances in Computer Games conference.
Participants
Program |
Nat. |
Authors |
Operators |
Cores
|
Architecture |
GHz |
GridGinkgo |
Ger. |
Frank Schneider, Kai Himstedt, Robert Hyatt |
Timo Haupt, Kai Himstedt |
224
|
AMD + Intel mix |
3.4 |
Hiarcs |
GB |
Mark Uniacke |
Harvey Williamson, Hans v.d. Zijden |
28
|
Intel Xeon E5-2697 |
2.7 |
Jonny |
Ger. |
Johannes Zwanzger |
Johannes Zwanzger |
2400
|
AMD x86-64 |
2.8 |
Komodo |
USA |
Don Dailey, Larry Kaufman, Mark Lefler |
Mark Lefler, Erdogan Günes |
48
|
Intel I7 |
2.8 |
Raptor |
USA |
Steve Webber |
Wolfgang Zugrav |
12
|
Intel Xeon X5680 |
4.1 |
Shredder |
Ger. |
Stefan Meyer-Kahlen |
Stefan Meyer-Kahlen |
32
|
Intel I5-2697 |
2.6 |
The reigning 21st World Computer Chess Champion was the program Jonny, written and operated by Johannes Zwanzger, Germany. Jonny was running on 2400 (!) AMD x86 cores, its main challengers Komodo and Shredder ran on 48 and 32 Intel cores. The tournament ended in a tie for first, with both Komodo and Jonny scoring 7.5/10 points.


Erdogan Günes operating Komodo against Stefan Meyer-Kahlen, author of Shredder
The rules required a play-off to determine the new Computer Chess Champion. The playing time was 45 minutes plus 15 seconds per move for each side. Two games were played, both ending in draws, in 53 and 65 moves. The second play-off saw playing times reduced to five minutes for the game plus five seconds increment per move. Again the outcome was 1-1 (two draws). Thus a third play-off had to be played. This had time controls of three minutes per game plus five seconds increment per move. The first game ended in a draw, and the second game was a win for Komodo.

So in the end Komodo, originally designed and implemented by Don Dailey, became the
World Computer Chess Champion 2016. Our congratulations to the team and to Don’s widow.
All the games of the 22nd World Computer Chess Championship

Replay and check the LiveBook here |
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1.d4 d5 2.Nf3 Nf6 3.g3 e6 4.Bg2 Be7 5.0-0 0-0 6.c4 c6 7.Qc2 b6 8.Nbd2 Bb7 9.e4 Na6 10.a3 c5 11.e5 Nd7 12.Re1 Nc7 13.b3 a5 14.cxd5 Nxd5 15.Nc4 Rc8 16.Qe4 cxd4 17.Qg4 Kh8 18.Bg5 Bxg5 19.Nxg5 h6 20.Ne4 Ba6 21.Ned6 Bxc4 22.Nxc8 Bxb3 23.Nd6 d3 24.Qd4 Nc5 25.Ne4 Nc7 26.Nd6 Qd7 27.Rab1 a4 28.Qb4 Bc2 29.Rb2 Nb3 30.Rf1 Nd5 31.Bxd5 exd5 32.Kg2 Kg8 33.Qf4 d4 34.Nf5 Qc7 35.Qg4 Qxe5 36.Nxh6+ Kh7 37.Nf5 g6 38.Qh4+ Kg8 39.Nh6+ Kg7 40.Ng4 Qd6 41.Qh6+ Kg8 42.Qg5 f5 43.Nh6+ Kh7 44.h4 Qc6+ 45.Kh2 Qe6 46.Kg2 Qe2 47.Rh1 Qe4+ 48.Kh2 Qe6 49.Kg2 Kg7 50.g4 fxg4 51.Nxg4 Qc6+ 52.Kg3 Rf3+ 53.Kh2 Qd6+ 54.Qe5+ Qxe5+ 55.Nxe5 Rxf2+ 56.Kg3 Rf8 57.Nf3 Rc8 58.h5 gxh5 59.Ne1 Kf6 60.Kh3 Rc3 61.Kh4 Ke7 62.Rf1 Kd6 63.Kg5 Bd1 64.Rh2 Bg4 65.Nf3 Bxf3 66.Rxf3 d2 67.Rf1 Rc1 68.Rf6+ Kd5 69.Rf5+ Kc4 70.Kf6 d1Q 71.Rg2 Qe1 72.Kf7 d3 73.Rf6 d2 74.Rf4+ Nd4 75.Rg6 d1Q 76.Rff6 Qe5 77.Kg8 Ne6 78.Rf8 Qd7 79.Rg4+ hxg4 80.Rf7 Qd8+ 81.Rf8 Qg7# 0–1
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Raptor | - | Shredder | - | 0–1 | 2016 | E06 | ICGA World Computer Chess Championship | 1.1 |
Komodo | - | GridGinkgo | - | 1–0 | 2016 | A28 | ICGA World Computer Chess Championship | 1.2 |
Hiarcs | - | Jonny | - | 0–1 | 2016 | D10 | ICGA World Computer Chess Championship | 1.3 |
Hiarcs | - | Raptor | - | 1–0 | 2016 | C43 | ICGA World Computer Chess Championship | 2.1 |
Jonny | - | GridGinkgo | - | ½–½ | 2016 | E11 | ICGA World Computer Chess Championship | 2.2 |
Shredder | - | Komodo | - | ½–½ | 2016 | D90 | ICGA World Computer Chess Championship | 2.3 |
Raptor | - | Jonny | - | 0–1 | 2016 | C54 | ICGA World Computer Chess Championship | 3.1 |
GridGinkgo | - | Shredder | - | 0–1 | 2016 | D12 | ICGA World Computer Chess Championship | 3.2 |
Komodo | - | Hiarcs | - | 1–0 | 2016 | A32 | ICGA World Computer Chess Championship | 3.3 |
Raptor | - | Komodo | - | ½–½ | 2016 | A83 | ICGA World Computer Chess Championship | 4.1 |
Hiarcs | - | GridGinkgo | - | ½–½ | 2016 | C53 | ICGA World Computer Chess Championship | 4.2 |
Jonny | - | Shredder | - | 1–0 | 2016 | D46 | ICGA World Computer Chess Championship | 4.3 |
Komodo | - | Jonny | - | 1–0 | 2016 | C54 | ICGA World Computer Chess Championship | 5.1 |
GridGinkgo | - | Raptor | - | 1–0 | 2016 | A34 | ICGA World Computer Chess Championship | 5.2 |
Shredder | - | Hiarcs | - | 1–0 | 2016 | D46 | ICGA World Computer Chess Championship | 5.3 |
Shredder | - | Raptor | - | 1–0 | 2016 | E90 | ICGA World Computer Chess Championship | 6.1 |
GridGinkgo | - | Komodo | - | ½–½ | 2016 | A40 | ICGA World Computer Chess Championship | 6.2 |
Jonny | - | Hiarcs | - | 1–0 | 2016 | D45 | ICGA World Computer Chess Championship | 6.3 |
Raptor | - | Hiarcs | - | ½–½ | 2016 | A20 | ICGA World Computer Chess Championship | 7.1 |
GridGinkgo | - | Jonny | - | 0–1 | 2016 | C78 | ICGA World Computer Chess Championship | 7.2 |
Komodo | - | Shredder | - | ½–½ | 2016 | B21 | ICGA World Computer Chess Championship | 7.3 |
Jonny | - | Raptor | - | 1–0 | 2016 | D24 | ICGA World Computer Chess Championship | 8.1 |
Shredder | - | GridGinkgo | - | ½–½ | 2016 | D45 | ICGA World Computer Chess Championship | 8.2 |
Hiarcs | - | Komodo | - | 0–1 | 2016 | B15 | ICGA World Computer Chess Championship | 8.3 |
Komodo | - | Raptor | - | 1–0 | 2016 | A28 | ICGA World Computer Chess Championship | 9.1 |
GridGinkgo | - | Hiarcs | - | ½–½ | 2016 | B11 | ICGA World Computer Chess Championship | 9.2 |
Shredder | - | Jonny | - | ½–½ | 2016 | D46 | ICGA World Computer Chess Championship | 9.3 |
Jonny | - | Komodo | - | ½–½ | 2016 | A88 | ICGA World Computer Chess Championship | 10.1 |
Raptor | - | GridGinkgo | - | ½–½ | 2016 | B21 | ICGA World Computer Chess Championship | 10.2 |
Hiarcs | - | Shredder | - | 0–1 | 2016 | B85 | ICGA World Computer Chess Championship | 10.3 |
Komodo | - | Jonny | - | ½–½ | 2016 | C53 | ICGA World Computer Chess Championship (play-off) | 11.1 |
Jonny | - | Komodo | - | ½–½ | 2016 | A88 | ICGA World Computer Chess Championship (play-off) | 12.1 |
Komodo | - | Jonny | - | ½–½ | 2016 | C65 | ICGA World Computer Chess Championship (play-off) | 13.1 |
Jonny | - | Komodo | - | ½–½ | 2016 | D26 | ICGA World Computer Chess Championship (play-off) | 14.1 |
Jonny | - | Komodo | - | ½–½ | 2016 | D26 | ICGA World Computer Chess Championship (play-off) | 15.1 |
Komodo | - | Jonny | - | 1–0 | 2016 | C53 | ICGA World Computer Chess Championship (play-off) | 16.1 |
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About the Komodo authors
Komodo is a UCI chess engine developed by Don Dailey, Mark Lefler, and supported by chess author and evaluation expert GM Larry Kaufman. Over the years it has been consistently rated in the top three on most major chess engine rating lists. Currently it is number one.

The original author of Komodo was Don Dailey, who along with GM Larry Kaufman developed the program. Dailey started chess programming in the 1980s, and was the author and co-author of multiple commercial as well as academic chess programs. He died of an acute form of leukemia in November 2013, but before his death handed over the code and all assets to Mark Lefler.

Mark Lefler is an American computer games and chess programmer. He is author of the computer chess program Now and with Jeff Mallett co-author of the general game playing program Zillions of Games. Mark is a graduate in Engineering Science and Mechanics, and has been employed as a Security Engineering Officer by the US State Department. His non-computer interests include performing magic, music, and gaming.

Lawrence C. ("Larry") Kaufman is a chess grandmaster, a title which he earned after winning the 2008 World Senior Championship. A longtime researcher in computer chess, Kaufman helped write the opening book for the pioneering chess program Mac Hack, co-developed Socrates II, worked on Rybka 3 and on many other research and commercial chess engines. He has written several books and articles, including The Evaluation of Material Imbalances. Larry has reached a considerable level of competence in several other board games. He is one of the strongest shogi players in the West; he learned the game by the traditional method of studying handicap theory and is one of the leading experts in this field. Go and Xiangqi are among his other past interests.
The latest Komodo available in the ChessBase Shop
The chess engine Komodo is currently the strongest chess program available anywhere in the world. The new version has gained 60 Elo points over Komodo 9, which was already rated at over 3300 on the international computer chess rating list.
Thanks to a host of extensive improvements and fine tweaking, the latest version of Komodo has again gained over 60 Elo points on its predecessor. The changes cover several areas: the evaluation function has been significantly sharpened, particularly with respect to king safety and endgame positions, and the search algorithm has been improved and optimized to run on multiple processors.
Komodo’s intelligent and results-driven evaluations have also proven extremely effective in practice: if Komodo 10 considers its position to be advantageous, it avoids exchanges and seeks to open the position.
The program has also recently demonstrated its exceptional playing strength in a series of matches against grandmasters: Komodo is unbeaten in over 50 games in which it gave its opponents a material advantage or several free moves, even beating Hikaru Nakamura 2.5 - 1.5 despite handicaps! And now it has won the 2016 World Computer Chess Championship in Leiden, Netherlands.
Komodo 10 (64-bit multi-processor engine) offers the unbeatable combination of the strongest ever chess engine running on the best and most popular user interface around. As it comes with the Fritz 15 64-bit GUI (optionally 32-bit), Komodo also offers all the training and playing functions you know from Fritz, including Premium membership to the ChessBase Web Apps with Live Database, the ChessBase video portal, our tactics server and more!

System requirements: Komodo 10: Minimum: Pentium III 1 GHz, 2 GB RAM, Windows XP (Service Pack 3), DirectX9, graphics card with 256 MB RAM, DVD-ROM drive, Windows Media Player 9 and internet access. Recommended: PC Intel i5 (Quadcore), 8 GB. RAM, Windows 10 or 8.1, DirectX10, graphics card with 512 MB RAM or more, 100% DirectX10-compatible sound card, DVD-ROM drive and internet access.
ChessBase Account: Internet access and current browser, e.g. Chrome, Safari. For Windows, OS X, iOS, Android, Linux.
Order Komodo 10 here