Komodo 13 is World Champion of computer chess

by Klaus Besenthal
8/28/2019 – In Macau (China) the "Chess Events" of the International Computer Games Association (ICGA) came to an end last week. In fact, behind this prosaic name are world championships in three disciplines: the World Computer Chess Championship (WCCC), the World Chess Software Championship (WCSC) and the Speed ​​Championship. At the start were six teams with their programs, including Komodo 13, which won in each of the two main disciplines WCCC and WCSC. | Photos: Erdogan Günes

Chess News


Komodo 13 thinks like no other chess program. Inspired by AlphaZero, Komodo developers GM Larry Kaufman and Mark Lefler have reinvented their engine from scratch over the last two years. The result speaks for itself: The new Komodo 13 MCTS ("Monte Carlo Tree Search") searches for candidate moves in an incredibly innovative way and finds solutions most engines never see!

"ICGA Chess Events 2019" in Macau

Founded in 1977 by the Scottish International Master David Levy, the "International Computer Games Association" is no longer concerned only with chess, but also with, for example, Go. The computer world championship has been around since 1974; It has been held annually since 2002. 

Those who have never studied the subject of computer chess will probably wonder what the difference between the World Computer Chess Championship and the World Chess Software Championship is. The decision announced ten years ago by the ICGA reveals it: 

  1. The World Computer Chess Championship for the Shannon Trophy will be contested by teams who have no restriction placed on them as to their choice of hardware.
  2. A new tournament will be called called the "World Chess Software Championship" to be held at the same location and during the same period as the WCCC. This will be a uniform platform event using computers loaned by the host organization. In each game played in this tournament the two computers will, as far as possible, be identical with respect to their hardware capabilities: number of cores, processor speed, memory size.

So for the WCCC, there are no restrictions on the hardware on which to run your program. In WCSC, on the other hand, it is necessary to use computers provided by the organizer, which should be equipped equally for both opponents.

Not quite as important as the WCCC and the WCSC is the "Speed ​​Championship", which shares a day in the schedule with an excursion. 

The video below (about one and a half minutes) shows that the championship is not (yet) quite as futuristic as you might think. The operators are flesh and blood playing out the machine's moves on a normal chessboard:

The "Shannon Trophy," which rewards the title in the WCCC, is named after the American mathematician Claude Shannon (1916 - 2001).

Erdogan Günes from the Komodo team lifts up the "Shanny"


Erdogan mans the dragon

Erdogan Günes sent us the following first-person account of the Software Championship.

Komodo t-shirtAfter the turbulence experienced at the start on the way there, my ambition of successfully defending all three titles disappeared. Since as a rule we (Team Komodo) arrive a day in advance, I was able to recover to some extent from the strains, more or less. On day one when we first of all, for example, set up our hardware over the internet: how fast is the internet service to the main computers and also to the backup machines which we had prepared? Then, for the software tournament the Tablebases are to be installed on the standard computers, and, and, and... There was lots to do there and then, and we helped each other out since we have become like one big family (like a caravan in the desert).

When we had also sorted things out in the players meeting and after the drawing of lots, the first pairings were announced. You could see how, after the pairings were announced, some programmers rushed to their computers like Usain Bolt and Rambo combined in a single person in order to make the final preparations for the opponents they now knew they would face. I had already done my homework at home and simply remained cool and looked on as the others created a sort of panic.

And things also got off to an immediate start with the software group; our daily program was also very tightly scheduled, unfortunately. It seemed to me that we would have hardly any time to breathe. From nine in the morning till the late evening at 22:00 we were in the tournament hall had to play our games.

My first opponent was no less than the several-time world champion Shredder, a warrior of old which looks as if it is getting on a bit (grey hairs). This time Stefan [Meyer-Kahlen] was in good spirits with his hybrid program and just as in previous years he had come to the tournament with high ambitions. On the other hand, I had prepared a sort of set of marching orders to use against Shredder, well before the tournament. After I had also studied during my work at home the games of my opponents from previous tournaments, I found something from previous years, namely its inclination towards the safer openings. It did not want to take any great risks and especially not at the start of each tournament. Just like a boxer who after the bell first of all starts by feeling out his opponent. Well my motto for Team Komodo is just like my opening book for the tournament: “No Risk, No Fun”. This is the frame of mind in which I turned up for our first game against Shredder. From testing at home with Deus X beta v1.18 (soon to become Fat Fritz) or Leela Chess Zero and other neural network programs I knew that it is only from a certain depth that the networks can show their potential over the board. For that reason the standard computer which we had for the software tournament (hardly any faster than a cardiac pacemaker) was like a handicap for the neurons. Since I wanted to reserve my front-rank openings for the open class, I made use of side variations.

 
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1.e41,165,57054%2421---
1.d4946,47455%2434---
1.Nf3281,31256%2441---
1.c4181,93756%2442---
1.g319,68856%2427---
1.b314,23654%2427---
1.f45,88648%2377---
1.Nc33,79651%2384---
1.b41,75348%2380---
1.a31,19754%2403---
1.e31,06848%2408---
1.d394850%2378---
1.g466246%2361---
1.h444653%2374---
1.c342651%2425---
1.h327956%2416---
1.a410860%2468---
1.f39147%2431---
1.Nh38966%2508---
1.Na34262%2482---
1.d4 c6 2.c4 d5 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.Be2N Predecessor: 7.Bd3 dxc4 1-0 (64) Eljanov,P (2751)-Akopian,V (2694) Astrakhan 2010 7...dxc4 8.Bxc4 0-0 9.0-0 a6 10.Rd1 b5 11.Bd3 D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran 11.Be2 feels hotter. Qc7 12.e4 e5 13.h3 exd4 14.Nxd4 Re8 15.a3 11...Qc7 Black should try 11...Bb7= 12.Ne4 Nxe4! 13.Bxe4 Nf6 14.Bd3 Don't blunder 14.Bxc6? Bb7-+ 14...c5! 15.dxc5 Qxc5 16.a4 Black must now prevent Qxc5. bxa4 17.Qxc5 Bxc5 The position is equal. 18.Rxa4 Bb7 19.Bd2 Rfd8 20.Ba5 Rd5 21.Raa1 Rc8 22.Bc3 h6 23.Nd4 23.Kf1 keeps more tension. Ne4 24.Bd4 Rdd8 25.Bxa6 Bxa6+ 26.Rxa6 Rb8 27.Ra2 23...Bb6 23...Be7 is more complex. 24.Nf3 Rdd8 25.Bd4 Ne4 26.Ne5 Nc5 24.Bxa6 24.f3 looks sharper. Rd7 25.Bxa6 Bxa6 26.Rxa6 Bc5 27.Rda1 24...Bxa6 25.Rxa6 Bxd4! 26.Rxd4 Rxd4 27.exd4=       Endgame KRB-KRN Nd5 28.Ra3 g5 29.Kf1 Kg7 30.Ke2 Kf6 31.Rb3 Ra8 32.Bd2 Kg6 33.h4 gxh4 34.Rh3 Rb8 35.Rxh4 Rxb2 36.Rxh6+ Kf5 37.Rh5+ Kg6 38.Rg5+ Kf6 Accuracy: White = 60%, Black = 65%. ½–½
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WhiteEloWBlackEloBResYearECOEventRnd
Shredder-Komodo-½–½2019D46ICGA WCCC 20191.2

Tactical analysis by Komodo 13 64-bit

Komodo vs Shredder

Stefan Meyer-Kahlen and Erdogan Günes

My next encounter was against the next title hopeful and long-term rival Jonny which had the white pieces. Just keep things on a quiet and even keel was my watchword. So, probe and set things up for a long and solid game so that with less time available towards the end the neural networks could no longer achieve their usual depth of calculation and thus would not find the best moves. No sooner said than done. After a solid opening by both sides, around approximately move 21 there were more or less mass exchanges on the board and we each had hardly enough material left to do any damage to our opponent. After a few more banal moves there was the unavoidable draw.

The third game saw us matched against Chiron; I have a good idea how it makes its books. My plan against Chiron was to conjure up some complexity on the board, since unlike Komodo its engine has less chess knowledge. Thus with the weak hardware it would certainly also make a lot of strategic mistakes. And things came to pass as I had imagined them. It repeated the Komodo vs Shredder game from the first round in the hope that the enemy would be sleeping, but the fact that instead of Be4?! I had Bg6! in my Komodo book did not feature in his calculations. In this game the saying crossed my mind that “Sheep that stray far from the flock get eaten by the wicked wolf”. That is precisely what happened with the far-advanced a6-pawn!

Erdogan Günes and ICGA-Präsident David Levy in Macau

The fourth encounter against Ginkgo saw standing opposite me a good old friend Wolfgang Zugrav, with whom I had also collaborated in some projects (Hydra) and also advised him in his correspondence games with Komodo. This time he had prepared something against me, a line which we had already analysed together. Only our opinions were quite different in the decisive position:

 
Komodo vs Gingko
Position after 13.Kb1

Does the b- or f-knight take on d5? I was the one who championed ♘bxd5 and in this WCh game Wolfi wanted to prove to me that ♞fxd5, i.e., the other steed is a playable option. I then probably learned more with his correspondence chess analyses after the game. After all the exchanges the position was as dead as a dodo and we longingly waited with bishops of opposite colours for a sharing of the point.

As for the game against The Baron, to this day I have no idea what Komodo and above all The Baron were thinking about. After a solid opening by White there was a skirmish and suddenly Komodo was a pawn up. But The Baron’s knights must have gone crazy and his king set on the long route to get at the white king. I thought he had been watching the film SPARTA and had become over-confident (lol). After some toing and froing we established that The Baron apparently had a bug in Tablebases and because of it had wrongly evaluated the position wrongly. OK a point is a point, so notch it up and on we go!

 
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1.c4 0s e5 book 0s 2.Nc3 6s Nc6 book 0s 3.g3 6s Bc5 book 0s 4.Bg2 7s a6 book 0s 5.e3 7s Ba7 book 0s 6.Nf3 1:17 Nge7 6:24 7.d4 2:47 (O-O) exd4 3:41 8.Nxd4 10s 0-0 1:39 9.0-0 55s Re8 1:55 10.Re1 2:03 (b3) d6 1:26 11.b3 7s Rb8 1:01 12.Bb2 1:27 (a4) Nxd4 1:31 13.exd4 7s b5 1:13 14.Nd5 8s (cxb5) Nxd5 0 15.Bxd5 27s Be6 37 16.Bxe6 0 Rxe6 4 17.Qc2 1:34 (Rxe6) Qd7 53 18.Rxe6 12s fxe6 9 19.c5 1:32 (Rc1) Rf8 55 20.Re1 1:41 a5 0 21.a3 1:26 c6 0 22.h4 2:21 (b4) b4 2:34 23.axb4 7s axb4 10 24.cxd6 1:18 Qxd6 0 25.Qc4 1:29 Re8 12 26.Qa6 1:05 (Ra1) Qd7 49 27.Rc1 10s (h5) Rc8 1:44 28.Rc4 1:00 Rf8 1:51 29.Qxc6 10s (Rxb4) Qf7 1:15 30.Rc2 7s e5 32 31.Qc4 25s exd4 35 32.Bxd4 36s Bxd4 23 33.Qxd4 27s Qxb3 33 34.Rc4 35s (Rb2) Qb1+ 38 35.Kg2 23s Qb3 27 36.Rxb4 1:16 Qf3+ 0 37.Kg1 1:19 h6 0 38.Qb2 47s (Qd2) Qd1+ 1:07 39.Kh2 2:02 Qd5 0 40.Rb8 0 Rxb8 1:42 41.Qxb8+ 1:29 Kf7 0 42.Qc7+ 1:08 Kg6 0 43.Qc2+ 1:03 (Qc1) Kf7 0 44.Qe2 12s h5 29 45.Qf1 18s (Kg1) Qa2 30 46.Qg2 1:01 (Kg1) Qc2 33 47.Qd5+ 1:07 (Qb7+) Kf6 19 48.Qg5+ 1:08 (Kg1) Ke6 2 49.Qf4 46s (Kg2) Qc6 24 50.Qf8 21s (Qe3+) Qc2 2:14 51.Qf3 55s g6 0 52.Qf8 8s (Kg2) Qc6 1:04 53.Qg7 47s (Qf4) Qc2 14 54.Qd4 1:00 (Qg8+) Kf5 16 55.Qb6 1:15 (Qf4+) Qc1 19 56.Qa7 55s (Kg2) Qc6 0 57.Qf7+ 1:21 Ke4 0 58.g4 45s (Kg2) hxg4 22 59.Kg3 8s (Qe7+) Kd3 13 60.Qf4 12s Kc2 10 61.Qxg4 17s Qc3+ 4 62.Kg2 35s Qc6+ 0 63.Qf3 40s (f3) Qe6 0 64.h5 44s (Qf4) gxh5 2 65.Qxh5 19s Qc6+ 0 66.Kg3 26s Qc3+ 26 67.Qf3 8s Qg7+ 9 68.Qg4 7s Qc3+ 6 69.Kg2 8s (Kh2) Qd2 0 70.Qe4+ 8s Kb2 4 71.Kg3 7s Qc3+ 39 72.f3 8s Ka3 3 73.Kf4 19s (Qe7+) Qg7 22 74.Ke3 8s (Qe6) Qg3 11 75.Kd3 7s (Qd3+) Qd6+ 1:16 76.Qd4 7s (Kc3) Qg6+ 9 77.Ke2 7s Qh5 4 78.Ke3 7s Qh3 0 79.Qg4 9s Qf1 25 80.f4 7s Qc1+ 2 81.Kd4 8s Qd2+ 0 82.Ke5 7s Qc3+ 7 83.Kd5 7s Qa5+ 14 84.Ke6 10s Qa6+ 5 85.Ke5 7s (Kf7) Qa5+ 14 86.Kf6 7s Qd8+ 4 87.Kf7 7s Qc7+ 2 88.Kg6 6s Qb6+ 2 89.Kh5 6s Qf6 23 90.f5 7s (Qg5) Qh8+ 29 91.Kg5 6s Qd8+ 6 92.Kf4 6s Qd6+ 13 93.Kf3 6s Kb2 4 94.Qe4 8s Ka1 9 95.Qa4+ 7s (Qf4) Kb2 22 96.Ke4 7s Qe7+ 39 97.Kd3 10s Qh7 0 98.Qf4 9s (Qb4+) Qh3+ 25 99.Ke2 6s Qg2+ 17 100.Ke3 6s (Qf2) Qh3+ 3 101.Kf2 6s Qc3 0 102.f6 8s Qc2+ 0 103.Kf3 6s Qd3+ 4 104.Kg4 6s Qg6+ 0 105.Qg5 6s Qe4+ 23 106.Kg3 7s Qe6 0 107.Qf4 7s (Kh4) Qg8+ 27 108.Kf2 6s Qf7 0 109.Qb4+ 7s (Qe5+) Ka1 4 110.Qa3+ 7s (Qc3+) Kb1 4 111.Qe7 7s Qg6 0 112.f7 6s (Qe1+) Qc2+ 9 113.Qe2 9s Qf5+ 0 114.Qf3 6s Qc5+ 0 115.Kg3 6s (Kf1) Qg5+ 7 116.Kh3 6s Qh6+ 7 117.Kg4 6s Qg7+ 3 118.Kh4 6s Qh6+ 4 119.Qh5 6s Qf4+ 8 120.Kh3 8s Qf1+ 0 121.Kg4 41s (Kg3) Qg2+ 31 122.Kf4 6s (Kf5) Qf2+ 6 123.Qf3 7s (Ke4) Qh4+ 4 124.Kf5 6s Qh7+ 0 125.Ke6 6s (Ke5) Qh6+ 5 126.Qf6 6s (Kd7) Qe3+ 10 127.Kf5 6s (Qe5) Qf2+ 12 128.Kg6 6s Qg2+ 0 129.Qg5 7s (Kh7) Qc6+ 7 130.Kh7 8s Qb7 9 131.Qg7 8s Qh1+ 0 132.Kg8 10s Qd5 0 133.Kh8 13s Kc1 24 134.f8Q 10s Qh5+ 7 1–0
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Komodo-The Baron-1–02019ICGA WCSC 20195.1

Day 1 was over and Team Komodo saw itself at the top of the table. Now some teams had to lick their wounds and iron out bugs in the program code and find holes. The same procedure as in previous years and we will have to keep repeating it until we have reached the 32 piece tablebase.

Day 2 dawned and with it the return round for the software group. A Shredder programmer in good humour and self-confidence was facing me with the white pieces. But after Komodo had left its book one thing was clear — White would not be winning any cigar here without queens on the board! Ten moves later the speedometer showed that Black was still in the driving seat but that there would not be enough in it for further advantage and a win. Thus Shredder had a happy ending in this encounter.

In our second meeting with Jonny I wanted to experiment a bit, but Komodo did not want to play the way its mentor had hoped despite having the bishop pair.

 
Komodo vs Johnny
Position after 10.♘h4

My idea was that by means of ♘f5 or f4 to f5 White would work up a kingside attack à la carte, but no, on account of the lack of calculating depth and the complicated position I had to get involved in a queenside skirmish. Apart from holding its own Komodo unfortunately achieved nothing.

In our second meeting with Ginkgo the following idea ran through my head. They are letting me play against my own openings, or so I felt. In our jargon these guys are also called Copy Pasters, but OK, lines which have been played before need to be taken into account and can one day crop up against oneself. So let’s act according to the motto that what Magnus Carlsen and Co play cannot be bad. My plan was simply not to let our lead slip and to play something solid. They want to have a go at me and so they will have to come up with something... More risk, gentlemen! So it turned into a boring game in which we cannot see White coming up with any ambition to win. During the game I thought to myself, “if he does not want to win with White, what colour does he want to win with then?"

The Baron had more luck with its choice of opening this time, whereas Komodo sacrificed a pawn in order to get active play out of its ruined opening. This time I had the SPARTAN king on my side and it rushed over into the enemy camp (ATTACK!) and I was thus able to secure the draw.

In the last game of the day against Chiron I wanted to extend my lead for a victorious defence of the title, that was my plan. Anybody else would have headed to the safe haven of a draw in order to keep on the safe side. Not my way, I keep going where others stop! Well my choice of opening had been thought out for Komodo running on several cores. I was confident about the opening, but Komodo again put a spoke in my wheel on account of the lack of depth of calculation. Ah well, for me the depths were pitilessly low. Komodo on my mobile had more PS than the pacemaker on which we had to play, lol. In the game Komodo simply could not conjure up its strength on the board, unfortunately. Apart from a nice-looking centre White had nothing, but it was enough to steer to the secure harbour of the draw and thus to take the title in the software group!

Translation from German by John Adams


Final standings (WCSC)

Rk.NameRtg.Nt.Pts.n
1
2
3
4
5
6
TBPerf.
1
0
6.5
10
29.50
110
2
0
6.0
10
27.50
72
3
0
6.0
10
24.50
72
4
0
5.5
10
23.00
36
5
0
4.5
10
20.00
-36
6
0
1.5
10
8.50
-296
TBs: Sonneborn-Berger

All games (WCSC)

 
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1.d4 3 Nf6 4 2.c4 3 e6 3 3.Nf3 3 d5 3 4.Nc3 3 dxc4 4 5.e4 3 Bb4 5 6.Bg5 3 c5 4 7.Bxc4 4 cxd4 4 8.Nxd4 5 Bxc3+ 4 9.bxc3 2 Qa5 4 10.Bb5+ 3 Nbd7 4 11.Bxf6 4 Qxc3+ 5 12.Kf1 3 gxf6 4 13.h4 2 Qa5 4 14.Rh3 4 a6 4 15.Be2 3 Nc5 5 16.Nb3 4 Nxb3 7 17.Qxb3 2 b6 4 18.Rd1 3 Bb7 4 19.Qb2 3 Qe5 4 20.Qxb6 6 Bxe4 5 21.Rg3 2 f5 4 22.Kg1 4:21 h6 5 23.Qb4 4:13 f4 5 24.Rg4 3:49 Rb8 4 25.Qa4+ 3:23 Ke7 2:03 26.Bf3 40 Bxf3 51 27.Rd7+ 4:16 Kf6 5 28.Rxf4+ 2:29 Kg6 4 29.Qc2+ 2:43 f5 8 30.Rxf3 3:03 Rhd8 4 31.Rg3+ 5:42 Qxg3 11 32.fxg3 56 Rxd7 18 33.Qc6 1:08 Rf7 1:20 34.Qxa6 1:02 Kf6 2:02 35.Qd6 1:26 Ra8 1:27 36.Qd4+ 2:29 Kg6 5 37.Qe5 1:07 Ra6 9:05 38.g4 3 Kh7 1:48 39.a4 56 fxg4 42 40.Qe4+ 46 Kg8 55 41.Qxg4+ 49 Rg7 2:18 42.Qc4 2:28 Rga7 1:36 43.h5 5 Kg7 6:31 44.Qg4+ 51 Kh8 1:11 45.Qg6 36 Rg7 17 46.Qe4 17 Rga7 5:50 47.g3 2 Ra5 36 48.Qg6 3 Rg7 41 49.Qxh6+ 4 Kg8 9 50.Qxe6+ 10 Kh7 1:05 51.Qe4+ 6 Kh6 40 52.Qf3 3 Rxh5 31 53.Qc3 4 Rhg5 53 54.Kf2 4 Rf7+ 34 55.Kg2 23 Rff5 9 56.Qh8+ 19 Kg6 5 57.Qd4 30 Rf6 30 58.Qe4+ 2 Kh6 22 59.Qh4+ 9 Kg6 9 60.Qc4 9 Rff5 3:28 61.g4 32 Ra5 23 62.Qe6+ 19 Kg7 24 63.Qe7+ 3 Kg6 25 64.Qe4+ 22 Kf6 27 65.Kg3 25 Rac5 31 66.Qd4+ 34 Ke6 4 67.Qd3 1:00 Ke5 25 68.Kh3 14 Kf4 31 69.Qa3 23 Rgd5 24 70.Qb2 11 Ra5 41 71.Qb4+ 21 Kg5 4 72.Qe4 14 Re5 26 73.Qd4 11 Rad5 44 74.Qc3 5 Kf4 13 75.Qc2 12 Ke3 21 76.Kg3 26 Rd3 26 77.Qc1+ 49 Ke2+ 29 78.Kf4 44 Red5 35 79.Qc2+ 1:45 Rd2 4 80.Qc4+ 30 Kf2 36 81.Ke4 3 Rg5 15 82.Qf7+ 10 Kg1 12 83.Qf4 5 Re2+ 11 84.Kd3 26 Ree5 23 85.Kd4 6 Rd5+ 9 86.Ke4 30 Rc5 4 87.Qe3+ 18 Kg2 49 88.Kf4 3 Rgd5 12 89.Qf3+ 23 Kh2 4 90.Qf2+ 42 Kh1 8 91.Qe2 48 Kg1 23 92.Kg3 2 Rc3+ 10 93.Kh4 48 Rdd3 4 94.Qe1+ 20 Kg2 41 95.Qe4+ 3 Kf2 1:25 96.g5 30 Rg3 5 97.a5 25 Rh3+ 20 98.Kg4 2 Rhg3+ 38 99.Kh5 14 Rh3+ 4 100.Kg6 29 Rhd3 19 101.Qf4+ 15 Kg2 37 102.Kh6 4 1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Ginkgo-The Baron-1–02019D24World Chess Software Championship1.1
Chiron-Jonny-½–½2019C50World Chess Software Championship1.2
Komodo-Shredder-1–02019D12World Chess Software Championship1.3
The Baron-Shredder-½–½2019D12World Chess Software Championship2.1
Jonny-Komodo-½–½2019E11World Chess Software Championship2.2
Ginkgo-Chiron-½–½2019C50World Chess Software Championship2.3
Chiron-The Baron-1–02019E00World Chess Software Championship3.1
Shredder-Jonny-½–½2019D45World Chess Software Championship3.3
The Baron-Jonny-0–12019D12World Chess Software Championship4.1
Ginkgo-Shredder-½–½2019B85World Chess Software Championship4.2
Chiron-Komodo-0–12019D12World Chess Software Championship4.3
Shredder-Chiron-½–½2019D41World Chess Software Championship5.2
Komodo-Ginkgo-½–½2019B90World Chess Software Championship3.2
Chiron-Jonny-½–½2019C50World Chess Software Championship5.3
Komodo-The Baron-1–02019A25World Chess Software Championship5.1
Shredder-Komodo-½–½2019D45World Chess Software Championship6.1
The Baron-Ginkgo-0–12019E92World Chess Software Championship6.2
Jonny-Chiron-½–½2019A29World Chess Software Championship6.3
Komodo-Jonny-½–½2019A28World Chess Software Championship7.1
Chiron-Ginkgo-½–½2019A28World Chess Software Championship7.2
Shredder-The Baron-1–02019D24World Chess Software Championship7.3
The Baron-Chiron-0–12019B15World Chess Software Championship8.1
Ginkgo-Komodo-½–½2019D12World Chess Software Championship8.2
Jonny-Shredder-½–½2019B10World Chess Software Championship8.3
The Baron-Komodo-½–½2019E92World Chess Software Championship10.1
Chiron-Shredder-1–02019D12World Chess Software Championship10.2
Ginkgo-Jonny-0–12019A21World Chess Software Championship10.3
Komodo-Chiron-½–½2019A28World Chess Software Championship9.1
Jonny-The Baron-½–½2019A29World Chess Software Championship9.2

Report on the WCCC from the ICGA (PDF)


Final standings (WCCC)

Rk.NameRtg.Nt.Pts.n
1
2
3
4
5
6
TBPerf.
1
0
7.5
10
31.25
193
2
0
6.0
10
25.50
72
3
0
5.5
10
22.25
36
4
0
5.0
10
25.00
0
5
0
4.5
10
18.75
-36
6
0
1.5
10
7.25
-296
TBs: Sonneborn-Berger

All games (WCCC)

 
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MoveNResultEloPlayers
1.e41,165,57054%2421---
1.d4946,47455%2434---
1.Nf3281,31256%2441---
1.c4181,93756%2442---
1.g319,68856%2427---
1.b314,23654%2427---
1.f45,88648%2377---
1.Nc33,79651%2384---
1.b41,75348%2380---
1.a31,19754%2403---
1.e31,06848%2408---
1.d394850%2378---
1.g466246%2361---
1.h444653%2374---
1.c342651%2425---
1.h327956%2416---
1.a410860%2468---
1.f39147%2431---
1.Nh38966%2508---
1.Na34262%2482---
1.d4 book 11s d5 9s 2.c4 book 0s c6 5s 3.Nf3 book 0s Nf6 6s 4.e3 book 0s Bf5 6s 5.Nc3 book 0s e6 11:26m 6.Nh4 book 11s Be4 10s 7.f3 book 0s Bg6 8s 8.Bd2 book 0s Be7 7s 9.Nxg6 + 2:47m hxg6 2:57m 10.Qb3 + 0s Qc7 7:01m 11.0-0-0 + 0s dxc4 13s 12.Bxc4 + 11:16m a5 13s 13.Bd3 + 2:04m b5 9:49m (Na6) 14.Kb1 + 3:54m a4 1:00m 15.Qc2 + 22s a3 10s (Qb6) 16.Nxb5 + 2:57m Qb6 13:08m (Qb7) 17.Nc3 + 1:58m axb2 14s 18.Bc4 + 6:23m Na6 3:33m (Qa7) 19.Qxb2 + 3:41m Qa7 3:04m 20.Bb3 + 0s 0-0 2:12m 21.Be1 + 8:42m Rfb8 2:47m 22.Bg3 0s Rb7 2:13m (Rb4) 23.e4 1:16m c5 3:11m (Nb4) 24.a4 1:18m Qb6 39s (cxd4) 25.Nb5 4s Nd7 33s (cxd4) 26.Rd2 4:58m cxd4 11s 27.Qxd4 4:59m Nac5 7:13m 28.Rb2 1:09m Qa5 14s (Qa6) 29.Bc2 1:42m Nb6 2:25m (e5) 30.Bc7 5:33m Ncxa4 14s 31.Bxa4 46s Qxa4 2:22m 32.Qxa4 0s Nxa4 49s 33.Rb3 34s Nc5 12s (Rxb5) 34.Rb2 1:17m Bf6 23s 35.e5 31s Na4 11s 36.Rb3 45s Rxb5 25s 37.Rxb5 1:02m Nc3+ 14s 0–1
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WhiteEloWBlackEloBResYearECOEventRnd
The Baron-Jonny-0–12019D12World Computer Chess Championship1.1
Chiron-Ginkgo-½–½2019B90World Computer Chess Championship1.3
Shredder-Komodo-½–½2019D46World Computer Chess Championship1.2
Ginkgo-Jonny-½–½2019A28World Computer Chess Championships2.1
Komodo-The Baron-1–02019A28World Computer Chess Championships2.2
Chiron-Shredder-½–½2019B85World Computer Chess Championships2.3
Shredder-Ginkgo-½–½2019E90World Computer Chess Championships3.1
The Baron-Chiron-0–12019C47World Computer Chess Championships3.2
Jonny-Komodo-½–½2019B10World Computer Chess Championships3.3
The Baron-Shredder-0–12019B47World Computer Chess Championships4.1
Ginkgo-Komodo-0–12019B09World Computer Chess Championships4.2
Chiron-Jonny-½–½2019A28World Computer Chess Championships4.3
The Baron-Ginkgo-½–½2019B23World Computer Chess Championships5.1
Komodo-Chiron-½–½2019D00World Computer Chess Championships5.2
Jonny-Shredder-½–½2019D43World Computer Chess Championships5.3
Ginkgo-Chiron-½–½2019D02World Computer Chess Championships6.1
Komodo-Shredder-1–02019D00World Computer Chess Championships6.2
Jonny-The Baron-0–12019A29World Computer Chess Championships6.3
Jonny-Ginkgo-½–½2019D44World Computer Chess Championship7.3
Shredder-Chiron-½–½2019D45World Computer Chess Championships7.1
The Baron-Komodo-0–12019B07World Computer Chess Championships7.2
Ginkgo-Shredder-½–½2019B85World Computer Chess Championships8.3
Chiron-The Baron-1–02019A28World Computer Chess Championships8.1
Komodo-Jonny-½–½2019A28World Computer Chess Championships8.2
Shredder-The Baron-1–02019D10World Computer Chess Championships9.3
Jonny-Chiron-½–½2019A29World Computer Chess Championships9.1
Komodo-Ginkgo-1–02019B91World Computer Chess Championships9.2

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Klaus Besenthal is computer scientist, has followed and still follows the chess scene avidly since 1972 and since then has also regularly played in tournaments.

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