The Week in Chess

Monday, July 15, 2019

Brain Fish 190713 vs. Stockfish and Clones

Brain Fish 190713 by Thomas Zipproth was relased last July 13, 2019. This is another random gauntlet where the favorites Asm Fish and CFish are not on top but the overall Stockfish and Clones Rating List changed a little.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   Shark 190701 x64  3597   200   51.50 63.00 K. Rahs
 2   CFish 190701 x64  3592   200   50.75 62.50 Ronald De Man
 3   Stockfish 190701 x64  3589   200   50.25 58.50 Romstad, Costalba, Kiiski, Linscott
 4   Asm Fish 2019-05-18 x64  3589   200   50.25 64.50 M. Li, L. Antonov. J. Dehorty
 5   Brain Fish 190713 x64  3587   2400   53.92 61.30 Thomas Zipproth
 6   Raubfisch X41a1 x64  3580   200   49.00 62.00 Frank Karl Warner
 7   SF Polyglot 190708 x64  3578   200   48.75 69.50 Massimiliano Goi
 8   Cor Chess 3.1 x64  3573   200   48.00 63.00 Ivan Ivec
 9   McCain X4 x64  3569   200   47.50 64.00 Michael Byrne
 10   Shash 8.0 x64  3566   200   47.00 66.00 Andrea Manzo
 11   Stockfish 10 x64  3550   200   44.75 61.50 Romstad, Costalba, Kiiski, Linscott
 12   Sugar NN 1.1 x64  3527   200   41.50 58.00 Marco Zerbinati
 13   Eman 3.81 x64  3383   200   23.75 43.50 Khalid Omar

Download the gauntlet PGN games here.

Sunday, July 14, 2019

Demolito 2019-07-10 vs. Top Chess Engines

Demolito 2019-07-10 by Lucas Braesch was released last July 10, 2019. This gauntlet placed it on number 25 in the Hybrid Rating List where it was previously number 28 a week earlier. The ELO rating increase is approximately 4 points.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   Stockfish 10 x64  3576   100   95.00 10.00 Romstad, Costalba, Kiiski, Linscott
 2   Houdini 6.02 x64  3488   100   92.00 14.00 Robert Houdart
 3   Xiphos 0.5.4 x64  3378   100   86.00 26.00 Milos Tatarevic
 4   Fire 7.1 x64  3378   100   86.00 22.00 Norman Schmidt
 5   Komodo 11.2.2 x64  3357   100   84.50 21.00 Dailey, Kaufman, Lefler
 6   Ethereal 11.56 x64  3320   100   81.50 23.00 Andrew Grant
 7   Schooner 2.1 x64  3287   100   78.50 29.00 Dennis Sceviour
 8   Shredder 13 x64  3262   100   76.00 32.00 Stefan Meyer-Kahlen
 9   Andscacs 0.95 x64  3239   100   73.50 29.00 Daniel Jose Queralto
 10   Laser 1.7 x64  3234   100   73.00 28.00 Jeffrey An, Michael An
 11   Critter 1.6a x64  3230   100   72.50 33.00 Richard Vida
 12   Rofchade 2.1 x64  3196   100   68.50 41.00 Ronald Friedrich
 13   Booot 6.3.1 x64  3173   100   65.50 47.00 Alex Morozov
 14   Gull 3 x64  3161   100   64.00 32.00 Vadim Demichev
 15   Equinox 3.30 x64  3135   100   60.50 51.00 Colli, Rocchi
 16   Fritz 15 x64  3128   100   59.50 39.00 Chessbase
 17   Pedone 1.9 x64  3128   100   59.50 33.00 Fabio Gobbato
 18   Hannibal 1.7 x64  3102   100   56.00 42.00 Sam Hamilton, Edsel Apostol
 19   Texel 1.07 x64  3078   100   52.50 31.00 Peter Osterlund
 20   Protector 1.9.0 x64  3074   100   52.00 36.00 Raimund Heid
 21   Wasp 3.60 x64  3067   100   51.00 40.00 John Stanback
 22   Nirvana 2.4 x64  3064   100   50.50 45.00 Thomas Kolarik
 23   Demolito 2019-07-10 x64  3060   3200   38.59 31.60 Lucas Braesch
 24   Fizbo 2.0 x64  3057   100   49.50 19.00 Youri Matiounine
 25   Rubi 1.5 x64  3053   100   49.00 38.00 Andreas Matthias
 26   Nemorino 5.00 x64  3046   100   48.00 34.00 Christian Gunther
 27   Senpai 2.0 x64  3021   100   44.50 39.00 Fabien Letouzey
 28   ICE 3.0.658 x64  3011   100   43.00 32.00 Thomas Petzke
 29   Naum 4.6 x64  3000   100   41.50 31.00 Aleksandar Naumov
 30   Smarthink 1.98 x64  2996   100   41.00 24.00 Sergei Markoff
 31   Arasan 21.4 x64  2996   100   41.00 26.00 Jon Dart
 32   Vajolet 2.2.7.0 x64  2971   100   37.50 37.00 Marco Belli
 33   SCTR 1.1f x64  2928   100   32.00 28.00 Can Catin, Dogac Eidenk

Download the gauntlet PGN games here.

Saturday, July 13, 2019

SF Polyglot 190708 vs. Stockfish and Clones

This is a gauntlet for SF Polyglot 190708 by Massimiliano Goi released last July 8, 2019. SF Polyglot ranked 5th in this tournament but 3rd in the overall rankings. CFish 190701 is now on top in the Stockfish and Clones Rating List.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   CFish 190701 x64  3573   200   54.00 71.00 Ronald De Man
 2   Asm Fish 2019-05-18 x64  3559   200   52.00 59.00 M. Li, L. Antonov. J. Dehorty
 3   Stockfish 190701 x64  3555   200   51.50 64.00 Romstad, Costalba, Kiiski, Linscott
 4   Stockfish 10 x64  3550   200   50.75 66.50 Romstad, Costalba, Kiiski, Linscott
 5   SF Polyglot 190708 x64  3545   2400   53.04 64.40 Massimiliano Goi
 6   Brain Fish 190707 x64  3545   200   50.00 62.00 Thomas Zipproth
 7   Raubfisch X41a1 x64  3543   200   49.75 61.50 Frank Karl Warner
 8   Shark 190701 x64  3534   200   48.50 74.00 K. Rahs
 9   Shash 8.0 x64  3524   200   47.00 72.00 Andrea Manzo
 10   McCain X4 x64  3515   200   45.75 70.50 Michael Byrne
 11   Cor Chess 3.1 x64  3515   200   45.75 66.50 Ivan Ivec
 12   Sugar NN 1.1 x64  3501   200   43.75 67.50 Marco Zerbinati
 13   Eman 3.81 x64  3350   200   24.75 38.50 Khalid Omar

Download the gauntlet PGN games here.

Friday, July 12, 2019

Eman 3.81 vs. Stockfish and Clones

Eman 3.81 by Khalid Omar was released last June 29, 2019.  Eman's gauntlet is right on target where it hit the bullseye at the bottom of the ranking.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   CFish 190701 x64  3606   200   65.00 58.00 Ronald De Man
 2   Asm Fish 2019-05-18 x64  3592   200   63.25 58.50 M. Li, L. Antonov. J. Dehorty
 3   Stockfish 190701 x64  3590   200   63.00 64.00 Romstad, Costalba, Kiiski, Linscott
 4   Brain Fish 190707 x64  3574   200   60.75 63.50 Thomas Zipproth
 5   Shark 190701 x64  3568   200   60.00 69.00 K. Rahs
 6   SF Polyglot 190629 x64  3568   200   60.00 67.00 Massimiliano Goi
 7   McCain X4 x64  3559   200   58.75 64.50 Michael Byrne
 8   Cor Chess 3.1 x64  3557   200   58.50 64.00 Ivan Ivec
 9   Raubfisch X41a1 x64  3554   200   58.00 64.00 Frank Karl Warner
 10   Stockfish 10 x64  3550   200   57.50 62.00 Romstad, Costalba, Kiiski, Linscott
 11   Sugar NN 1.1 x64  3529   200   54.50 62.00 Marco Zerbinati
 12   Shash 8.0 x64  3523   200   53.75 72.50 Andrea Manzo
 13   Eman 3.81 x64  3497   2400   40.58 64.10 Khalid Omar

Download the gauntlet PGN games here.

Shark 190701 vs. Stockfish and Clones


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   CFish 190701 x64  3601   200   54.75 67.50 Ronald De Man
 2   Asm Fish 2019-05-18 x64  3587   200   52.75 62.50 M. Li, L. Antonov. J. Dehorty
 3   Stockfish 190701 x64  3578   200   51.50 76.00 Romstad, Costalba, Kiiski, Linscott
 4   Brain Fish 190707 x64  3571   200   50.50 63.00 Thomas Zipproth
 5   SF Polyglot 190629 x64  3569   200   50.25 67.50 Massimiliano Goi
 6   Shark 190701 x64  3568   2400   51.94 66.50 K. Rahs
 7   Raubfisch X41a1 x64  3564   200   49.50 66.00 Frank Karl Warner
 8   Cor Chess 3.1 x64  3550   200   47.50 67.00 Ivan Ivec
 9   Stockfish 10 x64  3550   200   47.50 65.00 Romstad, Costalba, Kiiski, Linscott
 10   McCain X4 x64  3545   200   46.75 66.50 Michael Byrne
 11   Shash 8.0 x64  3541   200   46.25 74.50 Andrea Manzo
 12   Sugar NN 1.1 x64  3518   200   43.00 61.00 Marco Zerbinati
 13   Eman 3.72 x64  3471   200   36.50 62.00 Khalid Omar

Download the gauntlet PGN games here.

Stockfish 190701 vs. Stockfish and Clones

This Stockfish 190701 gauntlet is chaos. The rankings are jumbled. AsmFish is in 5th where it usually is in the top 2. Stockfish 10 found itself in the last position where it is usually at the middle.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   CFish 190701 x64  3619   200   53.75 65.50 Ronald De Man
 2   Brain Fish 190707 x64  3610   200   52.50 70.00 Thomas Zipproth
 3   Raubfisch X41a1 x64  3605   200   51.75 59.50 Frank Karl Warner
 4   SF Polyglot 190629 x64  3603   200   51.50 68.00 Massimiliano Goi
 5   Asm Fish 2019-05-18 x64  3601   200   51.25 63.50 M. Li, L. Antonov. J. Dehorty
 6   Shark 190622 x64  3594   200   50.25 68.50 K. Rahs
 7   McCain X4 x64  3592   200   50.00 70.00 Michael Byrne
 8   Stockfish 190701 x64  3592   2400   50.46 66.30 Romstad, Costalba, Kiiski, Linscott
 9   Cor Chess 3.1 x64  3589   200   49.50 71.00 Ivan Ivec
 10   Shash 8.0 x64  3584   200   48.75 74.50 Andrea Manzo
 11   Sugar NN 1.1 x64  3569   200   46.75 66.50 Marco Zerbinati
 12   Eman 3.72 x64  3554   200   44.50 57.00 Khalid Omar
 13   Stockfish 10 x64  3550   200   44.00 62.00 Romstad, Costalba, Kiiski, Linscott

Download the gauntlet PGN games here.

Thursday, July 11, 2019

Bran Fish 190707 vs. Top Chess Engines

BrainFish 190707 by Thomas Zipproth was released last July 7, 2019. In my tests, BrainFish is often on top against its twin Stockfish. The 2 major changes in the BrainFish code is the Cerebellum book logic and large pages which are worthless in this tournament. The other reasons that makes it stronger against Stockfish is the possible use of efficient compiler or optimizations not found in Stockfish.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   CFish 190701 x64  3594   200   55.00 61.00 Ronald De Man
 2   Asm Fish 2019-05-18 x64  3571   200   51.75 59.50 M. Li, L. Antonov. J. Dehorty
 3   Raubfisch X41a1 x64  3566   200   51.00 62.00 Frank Karl Warner
 4   Shark 190622 x64  3564   200   50.75 60.50 Krahs
 5   Brain Fish 190707 x64  3559   2400   52.81 59.40 Thomas Zipproth
 6   Stockfish 190622 x64  3554   200   49.25 59.50 Romstad, Costalba, Kiiski, Linscott
 7   SF Polyglot 190629 x64  3550   200   48.75 59.50 Massimiliano Goi
 8   Stockfish 10 x64  3550   200   48.75 59.50 Romstad, Costalba, Kiiski, Linscott
 9   Cor Chess 3.1 x64  3532   200   46.25 63.50 Ivan Ivec
 10   McCain X4 x64  3524   200   45.00 56.00 Michael Byrne
 11   Shash 8.0 x64  3524   200   45.00 68.00 Andrea Manzo
 12   Sugar NN 1.1 x64  3480   200   39.00 55.00 Marco Zerbinati
 13   Eman 3.72 x64  3456   200   35.75 48.50 Khalid Omar

Download the gauntlet PGN games here.

Wednesday, July 10, 2019

Ethereal 11.56 vs. Top Chess Engines

Ethereal 11.56 by Andrew Grant was released last July 5, 2019. This is just a development release but worth making a test as it is fun to watch the tight struggle between Fire, Ethereal and Xiphos. In this gauntlet, Ethereal edged Xiphos by 1.5 points but unable to defeat Fire.

In my Owl Rating List, the 4th to 6th places are Fire, Ethereal and Xiphos. In the overall Hybrid Rating List where CCRL, CEGT and FGRL are main producers, the sequence in the 5th to 7th ranks are Ethereal, Xiphos and Fire.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   Stockfish 10 x64  3590   100   79.00 38.00 Romstad, Costalba, Kiiski, Linscott
 2   Houdini 6.02 x64  3478   100   66.50 53.00 Robert Houdart
 3   Komodo 11.2.2 x64  3443   100   62.00 56.00 Dailey, Kaufman, Lefler
 4   Fire 7.1 x64  3393   100   55.00 62.00 Norman Schmidt
 5   Ethereal 11.56 x64  3358   3200   72.52 33.20 Andrew Grant
 6   Xiphos 0.5.4 x64  3347   100   48.50 53.00 Milos Tatarevic
 7   Laser 1.7 x64  3333   100   46.50 59.00 Jeffrey An, Michael An
 8   Shredder 13 x64  3294   100   41.00 56.00 Stefan Meyer-Kahlen
 9   Schooner 2.1 x64  3245   100   34.50 43.00 Dennis Sceviour
 10   Rofchade 2.1 x64  3245   100   34.50 47.00 Ronald Friedrich
 11   Booot 6.3.1 x64  3213   100   30.50 45.00 Alex Morozov
 12   Critter 1.6a x64  3213   100   30.50 41.00 Richard Vida
 13   Fizbo 2.0 x64  3170   100   25.50 25.00 Youri Matiounine
 14   Equinox 3.30 x64  3170   100   25.50 37.00 Colli, Rocchi
 15   Gull 3 x64  3165   100   25.00 28.00 Vadim Demichev
 16   Pedone 1.9 x64  3151   100   23.50 35.00 Fabio Gobbato
 17   Andscacs 0.95 x64  3146   100   23.00 34.00 Daniel Jose Queralto
 18   Fritz 15 x64  3136   100   22.00 26.00 Chessbase
 19   Hannibal 1.7 x64  3125   100   21.00 36.00 Sam Hamilton, Edsel Apostol
 20   Demolito 2019-07-03 x64  3080   100   17.00 26.00 Lucas Braesch
 21   Nirvana 2.4 x64  3073   100   16.50 27.00 Thomas Kolarik
 22   Texel 1.07 x64  3073   100   16.50 25.00 Peter Osterlund
 23   Nemorino 5.00 x64  3067   100   16.00 26.00 Christian Gunther
 24   Rubi 1.5 x64  3047   100   14.50 25.00 Andreas Matthias
 25   Senpai 2.0 x64  3024   100   13.00 22.00 Fabien Letouzey
 26   Wasp 3.60 x64  3024   100   13.00 22.00 John Stanback
 27   ICE 3.0.658 x64  3017   100   12.50 17.00 Thomas Petzke
 28   Arasan 21.4 x64  3008   100   12.00 16.00 Jon Dart
 29   Naum 4.6 x64  3000   100   11.50 23.00 Aleksandar Naumov
 30   Smarthink 1.98 x64  3000   100   11.50 7.00 Sergei Markoff
 31   SCTR 1.1f x64  3000   100   11.50 19.00 Can Catin, Dogac Eidenk
 32   Protector 1.9.0 x64  2982   100   10.50 15.00 Raimund Heid
 33   Vajolet 2.2.7.0 x64  2963   100   9.50 19.00 Marco Belli

Download the gauntlet PGN games here.

Tuesday, July 9, 2019

SF Polyglot 190629 vs. Top Chess Engnes


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   Asm Fish 2019-05-18 x64  3619   200   59.00 52.00 M. Li, L. Antonov. J. Dehorty
 2   CFish 190701 x64  3571   200   52.25 56.50 Ronald De Man
 3   Raubfisch X41a1 x64  3569   200   52.00 57.00 Frank Karl Warner
 4   Brain Fish 190630 x64  3566   200   51.50 59.00 Thomas Zipproth
 5   Shark 190622 x64  3561   200   50.75 59.50 Krahs
 6   Cor Chess 3.1 x64  3559   200   50.50 55.00 Ivan Ivec
 7   Stockfish 190622 x64  3555   200   50.00 54.00 Romstad, Costalba, Kiiski, Linscott
 8   SF Polyglot 190629 x64  3555   2400   51.54 53.10 Massimiliano Goi
 9   Stockfish 10 x64  3550   200   49.25 49.50 Romstad, Costalba, Kiiski, Linscott
 10   McCain X4 x64  3550   200   49.25 51.50 Michael Byrne
 11   Shash 8.0 x64  3520   200   45.00 55.00 Andrea Manzo
 12   Sugar NN 1.1 x64  3481   200   39.50 47.00 Marco Zerbinati
 13   Eman 3.72 x64  3427   200   32.50 41.00 Khalid Omar

Download the gauntlet PGN games here.

Monday, July 8, 2019

Raubfisch X41a1 vs. Stockfish and Clones

Raubfisch X41a1 by Frank Karl Warner a.k.a. Max Failure was released last June 30, 2019.

Raubfisch placed 3rd in this gauntlet but 8th in the overall Stockfish and Clones Rating List.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   CFish 190701 x64  3608   200   53.75 63.50 Ronald De Man
 2   Shark 190622 x64  3606   200   53.50 63.00 Krahs
 3   Asm Fish 2019-05-18 x64  3601   200   52.75 56.50 M. Li, L. Antonov. J. Dehorty
 4   McCain X4 x64  3592   200   51.50 65.00 Michael Byrne
 5   Stockfish 190622 x64  3590   200   51.25 64.50 Romstad, Costalba, Kiiski, Linscott
 6   Raubfisch X41a1 x64  3582   2400   50.85 63.00 Frank Karl Warner
 7   SF Polyglot 190621 x64  3580   200   49.75 65.50 Massimiliano Goi
 8   Brain Fish 190630 x64  3576   200   49.25 65.50 Thomas Zipproth
 9   Shash 8.0 x64  3575   200   49.00 67.00 Andrea Manzo
 10   Cor Chess 3.1 x64  3569   200   48.25 65.50 Ivan Ivec
 11   Stockfish 10 x64  3550   200   45.50 57.00 Romstad, Costalba, Kiiski, Linscott
 12   Sugar NN 1.1 x64  3534   200   43.25 61.50 Marco Zerbinati
 13   Eman 3.72 x64  3525   200   42.00 62.00 Khalid Omar

Download the gauntlet PGN games here.

Sunday, July 7, 2019

Demolito 2019-07-03 vs. Top Chess Engines ELO 3000+

Demolito 2019-07-03 by Lucas Braesch was released last July 3, 2019.  After a very long time, managed to break the ELO 3000 barrier. It jumped from 37th to 28th rank with an ELO rating of 3075 in the pure Hybrid Chess Engines Rating List.


 Rank  Chess Engine   ELO     Games  Score%  Draw% Author
 1   Stockfish 10 x64  3739   100   98.00 4.00 Romstad, Costalba, Kiiski, Linscott
 2   Houdini 6.02 x64  3573   100   95.00 10.00 Robert Houdart
 3   Komodo 11.2.2 x64  3442   100   90.00 16.00 Dailey, Kaufman, Lefler
 4   Ethereal 11.50 x64  3334   100   83.00 24.00 Andrew Grant
 5   Fire 7.1 x64  3334   100   83.00 26.00 Norman Schmidt
 6   Xiphos 0.5.4 x64  3328   100   82.50 25.00 Milos Tatarevic
 7   Laser 1.7 x64  3273   100   77.50 29.00 Jeffrey An, Michael An
 8   Rofchade 2.1 x64  3263   100   76.50 25.00 Ronald Friedrich
 9   Andscacs 0.95 x64  3263   100   76.50 35.00 Daniel Jose Queralto
 10   Shredder 13 x64  3263   100   76.50 31.00 Stefan Meyer-Kahlen
 11   Schooner 2.1 x64  3259   100   76.00 32.00 Dennis Sceviour
 12   Critter 1.6a x64  3218   100   71.50 31.00 Richard Vida
 13   Booot 6.3.1 x64  3213   100   71.00 40.00 Alex Morozov
 14   Equinox 3.30 x64  3189   100   68.00 36.00 Colli, Rocchi
 15   Gull 3 x64  3154   100   63.50 43.00 Vadim Demichev
 16   Fizbo 2.0 x64  3135   100   61.00 16.00 Youri Matiounine
 17   Fritz 15 x64  3128   100   60.00 44.00 Chessbase
 18   Hannibal 1.7 x64  3106   100   57.00 44.00 Sam Hamilton, Edsel Apostol
 19   Senpai 2.0 x64  3099   100   56.00 38.00 Fabien Letouzey
 20   Rubi 1.5 x64  3081   100   53.50 35.00 Andreas Matthias
 21   Demolito 2019-07-03 x64  3057   3100   36.48 31.70 Lucas Braesch
 22   Texel 1.07 x64  3050   100   49.00 40.00 Peter Osterlund
 23   Protector 1.9.0 x64  3043   100   48.00 34.00 Raimund Heid
 24   Wasp 3.60 x64  3039   100   47.50 49.00 John Stanback
 25   ICE 3.0.658 x64  3039   100   47.50 29.00 Thomas Petzke
 26   Nemorino 5.00 x64  3036   100   47.00 42.00 Christian Gunther
 27   Nirvana 2.4 x64  3032   100   46.50 47.00 Thomas Kolarik
 28   Arasan 21.4 x64  3028   100   46.00 34.00 Jon Dart
 29   SCTR 1.1f x64  3018   100   44.50 37.00 Can Catin, Dogac Eidenk
 30   Naum 4.6 x64  3000   100   42.00 36.00 Aleksandar Naumov
 31   Vajolet 2.2.7.0 x64  2978   100   39.00 34.00 Marco Belli
 32   Smarthink 1.98 x64  2956   100   36.00 18.00 Sergei Markoff

Download gauntlet PGN games here.

Friday, July 5, 2019

Schooner 2.1 vs. Top Chess Engines

Schooner 2.1 by Dennis Sceviour was released last July 3, 2019.

The ELO rating increase estimate by the author was 50 but the result showed more. The ELO increase is more than 80 which placed it now in the 10th position from previous 15th in the overall pure Hybrid Chess Engines Rating List.


 Rank  Chess Engine   ELO     Games  Score%  Win%  Draw% Author
 1   Stockfish 10 x64  3581   100   88.00 78.00 20.00 Romstad, Costalba, Kiiski, Linscott
 2   Houdini 6.02 x64  3573   100   87.50 75.00 25.00 Robert Houdart
 3   Komodo 11.2.2 x64  3420   100   74.50 56.00 37.00 Dailey, Kaufman, Lefler
 4   Fire 7.1 x64  3385   100   70.50 50.00 41.00 Norman Schmidt
 5   Ethereal 11.50 x64  3356   100   67.00 44.00 46.00 Andrew Grant
 6   Xiphos 0.5.4 x64  3348   100   66.00 43.00 46.00 Milos Tatarevic
 7   Shredder 13 x64  3250   100   52.50 30.00 45.00 Stefan Meyer-Kahlen
 8   Andscacs 0.95 x64  3236   100   50.50 29.00 43.00 Daniel Jose Queralto
 9   Laser 1.7 x64  3232   100   50.00 30.00 40.00 Jeffrey An, Michael An
 10   Schooner 2.1 x64  3232   3000   59.78 42.57 34.40 Dennis Sceviour
 11   Rofchade 2.1 x64  3197   100   45.00 22.00 46.00 Ronald Friedrich
 12   Booot 6.3.1 x64  3172   100   41.50 22.00 39.00 Alex Morozov
 13   Equinox 3.30 x64  3154   100   39.00 17.00 44.00 Colli, Rocchi
 14   Critter 1.6a x64  3150   100   38.50 18.00 41.00 Richard Vida
 15   Gull 3 x64  3116   100   34.00 17.00 34.00 Vadim Demichev
 16   Fizbo 2.0 x64  3104   100   32.50 15.00 35.00 Youri Matiounine
 17   Fritz 15 x64  3088   100   30.50 13.00 35.00 Chessbase
 18   ICE 3.0.658 x64  3084   100   30.00 16.00 28.00 Thomas Petzke
 19   Protector 1.9.0 x64  3058   100   27.00 12.00 30.00 Raimund Heid
 20   Texel 1.07 x64  3053   100   26.50 12.00 29.00 Peter Osterlund
 21   Rubi 1.5 x64  3049   100   26.00 8.00 36.00 Andreas Matthias
 22   Wasp 3.60 x64  3049   100   26.00 10.00 32.00 John Stanback
 23   Senpai 2.0 x64  3044   100   25.50 9.00 33.00 Fabien Letouzey
 24   Hannibal 1.7 x64  3044   100   25.50 4.00 43.00 Sam Hamilton, Edsel Apostol
 25   Nirvana 2.4 x64  3040   100   25.00 6.00 38.00 Thomas Kolarik
 26   Vajolet 2.2.7.0 x64  3020   100   23.00 9.00 28.00 Marco Belli
 27   Nemorino 5.00 x64  3020   100   23.00 9.00 28.00 Christian Gunther
 28   Arasan 21.4 x64  3010   100   22.00 8.00 28.00 Jon Dart
 29   Naum 4.6 x64  3000   100   21.00 11.00 20.00 Aleksandar Naumov
 30   SCTR 1.1f x64  2995   100   20.50 9.00 23.00 Can Catin, Dogac Eidenk
 31   Smarthink 1.98 x64  2966   100   18.00 8.00 20.00 Sergei Markoff

Download the gauntlet PGN games here.http://www.mediafire.com/file/qfhmaihrw7a1be1/Schooner+2.1+vs.+Top+Chess+Engines.7z

Arasan 21.4 vs. Top Chess Engines

Arasan 21.4 by Jon Dart was released last July 2, 2019.

Arasan was defeated by 25 chess engines which alters its position negatively in the overall pure Hybrid Rating List where it ranked 21st previously. Now it ranked 29th which is a disappointment. I am not sure whether the author's assessment of modest ELO increase is accurate or there is something wrong with my test procedures.

 Rank  Chess Engine   ELO     Games  Scor
e%
 Win%  Draw% Author
 1   Stockfish 10 x64  3584   100   94.50 90.00 9.00 Romstad, Costalba, Kiiski, Linscott
 2   Houdini 6.02 x64  3553   100   93.50 88.00 11.00 Robert Houdart
 3   Komodo 11.2.2 x64  3526   100   92.50 86.00 13.00 Dailey, Kaufman, Lefler
 4   Fire 7.1 x64  3435   100   88.00 77.00 22.00 Norman Schmidt
 5   Ethereal 11.50 x64  3390   100   85.00 74.00 22.00 Andrew Grant
 6   Xiphos 0.5.4 x64  3376   100   84.00 71.00 26.00 Milos Tatarevic
 7   Shredder 13 x64  3329   100   80.00 68.00 24.00 Stefan Meyer-Kahlen
 8   Andscacs 0.95 x64  3303   100   77.50 67.00 21.00 Daniel Jose Queralto
 9   Rofchade 2.1 x64  3293   100   76.50 63.00 27.00 Ronald Friedrich
 10   Laser 1.7 x64  3278   100   75.00 60.00 30.00 Jeffrey An, Michael An
 11   Schooner 2.0.34 x64  3265   100   73.50 59.00 29.00 Dennis Sceviour
 12   Critter 1.6a x64  3238   100   70.50 51.00 39.00 Richard Vida
 13   Booot 6.3.1 x64  3210   100   67.00 47.00 40.00 Alex Morozov
 14   Equinox 3.30 x64  3190   100   64.50 47.00 35.00 Colli, Rocchi
 15   Texel 1.07 x64  3187   100   64.00 43.00 42.00 Peter Osterlund
 16   Gull 3 x64  3187   100   64.00 45.00 38.00 Vadim Demichev
 17   Fizbo 2.0 x64  3153   100   59.50 50.00 19.00 Youri Matiounine
 18   Hannibal 1.7 x64  3153   100   59.50 41.00 37.00 Sam Hamilton, Edsel Apostol
 19   Nirvana 2.4 x64  3146   100   58.50 39.00 39.00 Thomas Kolarik
 20   Fritz 15 x64  3139   100   57.50 39.00 37.00 Chessbase
 21   ICE 3.0.658 x64  3117   100   54.50 40.00 29.00 Thomas Petzke
 22   Nemorino 5.00 x64  3117   100   54.50 37.00 35.00 Christian Gunther
 23   Rubi 1.5 x64  3107   100   53.00 34.00 38.00 Andreas Matthias
 24   Senpai 2.0 x64  3100   100   52.00 34.00 36.00 Fabien Letouzey
 25   Protector 1.9.0 x64  3096   100   51.50 32.00 39.00 Raimund Heid
 26   Arasan 21.4 x64  3086   3000   34.58 19.57 30.00 Jon Dart
 27   Vajolet 2.2.7.0 x64  3058   100   46.00 31.00 30.00 Marco Belli
 28   SCTR 1.1f x64  3051   100   45.00 31.00 28.00 Can Catin, Dogac Eidenk
 29   Smarthink 1.98 x64  3029   100   42.00 27.00 30.00 Sergei Markoff
 30   Wasp 3.60 x64  3022   100   41.00 20.00 42.00 John Stanback
 31   Naum 4.6 x64  3000   100   38.00 21.00 34.00 Aleksandar Naumov

Download the gauntlet PGN games here.

Thursday, July 4, 2019

CFish 190701 vs. Stocckfish and Clones

CFish by Ronald de Man 190701 was released 2 days ago. The result of this tournament is a bit of surprise as the ranking position is so random. McCain and Shark managed to defeat CFish by 1 point but AsmFish was defeated by CFish. What is shocking is that AsmFish  is now the number 1 in the overall ranking in the Stockfish and Clones Rating List edging CFish by 12 ELO points.

There must be something wrong with the latest update of CFish or the random things hit it.


 Rank  Chess Engine   ELO     Games  Score%  Win%  Draw% Author
 1   Shark 190622 x64  3582   200   50.25 11.00 78.50 Krahs
 2   McCain X4 x64  3582   200   50.25 16.00 68.50 Michael Byrne
 3   CFish 190701 x64  3580   2400   53.79 19.50 68.60 Ronald De Man
 4   SF Polyglot 190621 x64  3578   200   49.75 18.00 63.50 Massimiliano Goi
 5   Stockfish 190622 x64  3566   200   48.00 14.50 67.00 Romstad, Costalba, Kiiski, Linscott
 6   Brain Fish 190630 x64  3566   200   48.00 13.50 69.00 Thomas Zipproth
 7   Asm Fish 2019-05-18 x64  3555   200   46.50 16.00 61.00 M. Li, L. Antonov. J. Dehorty
 8   Cor Chess 3.1 x64  3552   200   46.00 11.00 70.00 Ivan Ivec
 9   Stockfish 10 x64  3550   200   45.75 12.50 66.50 Romstad, Costalba, Kiiski, Linscott
 10   Shash 8.0 x64  3532   200   43.25 4.50 77.50 Andrea Manzo
 11   Raubfisch X40c x64  3529   200   42.75 10.00 65.50 Frank Karl Warner
 12   Sugar NN 1.1 x64  3527   200   42.50 7.00 71.00 Marco Zerbinati
 13   Eman 3.72 x64  3520   200   41.50 9.00 65.00 Khalid Omar

Download the gauntlet PGN games here.

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