If you are interested....

Altair-6.0.0-x86-64-v3
==============

I started a new match versus Alexandria-5.1.0-bmi2. The SF grandson [Al(.... )]-3.5-x64) born in the warm steam of the Mediterranean is too weak for the new Chinese star (Altair-6.0.0-NNUE)!

Clover.6.1-avx2 & Caissa-1.15-x64-avx2-bmi2
=============================

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases for both engines
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result:





+6 -4 =90

+7 Elo points in 100 games for Clover.6.1-avx2

The previous versions:

Caissa 1.14 avx2 has 3630 Elo points (in Stefan Pohl's UHO rating list).

Clover 6 avx2 has 3587 Elo points (in Stefan Pohl's UHO rating list).

Pedantic.0.6.0.Win64
=============

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases for both engines
-NNs: none (both engines have HCE)
-Ponder: off
-OS: Windows 10 Home.

The final result in this match:





+34 -26 =40

+28 Elo points in 100 games for Pedantic.0.6.0.Win64

SmarThink 1.98 x64 has 3087 Elo points (CCRL Blitz rating list).

Pedantic 0.6.0 x64 has 3093 Elo points (CCRL Blitz rating list).

===========

Next:

Obsidian90-avx2-bmi2
==============

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases (only for Revenge_3.0_win_bmi2)
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result:





+14 -2 =84

+42 Elo points in 100 games for Obsidian90-avx2-bmi2

Revenge 3.0 x64 has 3584 Elo points (CCRL Blitz rating list).

=====================

So Santa ( ) imposes a new leader in Domus Flavia. It is about Imperator Caesar OBSIDIANUS Invictus Augustus. Vivat!
NR: the parentage that allowed him access to the throne is not yet clear....but this is only a minor detail....after long arguments the scientists in the history of computer chess will establish it!

=====================

Next:

Stormphrax-4.0.0-avx2-bmi2
==================

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases for both engines
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result in this match:





+28 -11 =61

+63 Elo points in 100 games for Stormphrax-4.0.0-avx2-bmi2

Ginkgo Valencia 1.01 x64 (Fritz 19 AVX2) has 3509 Elo points (CCRL Blitz rating list).

Stormphrax 3.0.0 x64 has 3470 Elo points (CCRL Blitz rating list).

Nice improvement! Congratulations!

About Fritz: I had read somewhere that he is some kind of world champion in 2023, through Valencia as if.....in 2022 in Vienna.....in 2024 in ? ( )......

===============

Next:

Velvet-v6.0.0-x86_64-avx2
=================

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases (only for Velvet-v6.0.0-x86_64-avx2)
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result:





+23 -17 =60

+21 Elo points in 100 games for Velvet-v6.0.0-x86_64-avx2

Altair 6.0.0 x64 has 3500 Elo points (CCRL Blitz rating list).

Velvet 5.3.0 x64 has 3478 Elo points (CCRL Blitz rating list).

Very good !

====================

Well, for a while I will move to another era. Probably uninteresting for most.....Nostalgia doesn't ask for justifications.....

ChessBrainVB 4.00
============

Match conditions:

  -TC=4'+2"
  -Hash=256 MB
  -GUI: Arena 3.5.1
  -Book: SuperGM_4mvs.abk (8 plies book) for both engines
  -1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
  -TBS: 5-men Syzygy bases (only for ChessBrainVB 4.00)
  -NNs: default (only for Velvet-v3.0.0-x86_64-avx2); ChessBrainVB 4.00 has HCE  
  -Ponder: off
  -OS: Windows 10 Home.

The final result in this match:





+47 -21 =32

+92 Elo points in 100 games for ChessBrainVB 4.00

Velvet 3.0.0 x64 has 3100 Elo points (CCRL Blitz rating list).

ChessBrainVB 3.72 w32 has 3063 Elo points (CCRL Blitz rating list).

ChessBrainVB 3.74 w32 has 3040 Elo points (CCRL Blitz rating list).

Nice improvement. A w32 chess engine written in Visual Basic 6 of 3200 Elo points. Congratulations !

   

.....a bonus (by SilvianR).....

Peacekeeper-220-avx2
==============

Match conditions:

  -TC=4'+2"
  -Hash=256 MB
  -GUI: Arena 3.5.1
  -Book: SuperGM_4mvs.abk (8 plies book) for both engines
  -1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
  -TBS: 6-men Syzygy bases (only for Revenge_1.0_x64_bmi2)
  -NNs: defaults
  -Ponder: off
  -OS: Windows 10 Home.

The final result:





+21 -16 =63

-14 Elo points in 100 games

Revenge 1.0 x64 has 3449 Elo points (CCRL Blitz rating list).

Peacekeeper 2.20 x64 has 3443 Elo points (CCRL Blitz rating list).

The result of my match confirms the rating obtained by the CCRL Blitz tests.

======================
Happy New Year to everyone!
======================

Cheng_4.42_x64
===========

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases (only for Cheng_4.42_x64)
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result:





+23 -40 =37

-56 Elo points in 100 games

chess22k 1.14 x64 has 3129 Elo points (CCRL Blitz rating list).

Cheng 4.41 x64 (the previous version) has 3086 Elo points (CCRL Blitz rating list).

Well, match with an extremely unpleasant opponent (for many engines). It's hard to see even 1 (one) Elo point progress. CEGT saw +24. WOW!!! Somewhat
explainable.... opponents chosen on the eyebrow....the meanders of statistics....chaos theory....



===============

Next:

Seer_v2.8_x64_avx2_popcnt
==================

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases for both engines
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result in my match:





+7 -6 =87

+7 Elo points in 100 games for Seer_v2.8_x64_avx2_popcnt

Clover 6.1 x64 has 3600 Elo points (CCRL Blitz rating list).

Seer 2.7.0 x64 has 3583 Elo points (CCRL Blitz rating list).

akimbo-0.8.0-avx2
============

A match played on a blizzard of stories...

Conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: none
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result:





+24 -8 =68

+56 Elo points in 100 games for akimbo-0.8.0-avx2

Altair 6.0.0 x64 has 3498 Elo points (CCRL Blitz rating list).

akimbo 0.7.0 x64 has 3459 Elo points (CCRL Blitz rating list).

Nice progress. Congratulations to the author!

On way......

Stockfish_24010817_x64_bmi2_dual_net
==========================

Match conditions:

  -TC=4'+2"
  -Hash=256 MB
  -GUI: Arena 3.5.1
  -Book: SuperGM_4mvs.abk (8 plies book) for both engines
  -1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
  -TBS: 6-men Syzygy bases for both engines
  -NNs: defaults
  -Ponder: off
  -OS: Windows 10 Home.

The final result:





+7 -0 =93

+28 Elo points in 100 games for Stockfish_24010817_x64_bmi2_dual_net

===========================================

Impressive & novative this new version of the leading Stockfish chess engine. Congratulations to the authors (first of all to Linmiao Xu & mstembera) ! The maximum positional score of Dragon 3.3 - in this match - was +0,78.

===========================================

Like bonus a winter photo by SilvianR..... .......

..............started ..............

Will be interesting....

Admin wrote:

Will be interesting....

The trend in the direct match is not encouraging for Caissa....

There is of course an improvement in version 1.16, but Ethereal 14.25 is clearly superior. The situation after 64 games:

Caissa-1.16-x64-avx2-bmi2
=================

Match conditions:

  -TC=4'+2"
  -Hash=256 MB
  -GUI: Arena 3.5.1
  -Book: SuperGM_4mvs.abk (8 plies book) for both engines
  -1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
  -TBS: 6-men Syzygy bases for both engines
  -NNs: defaults
  -Ponder: off
  -OS: Windows 10 Home.

The final result:





+8 -14 =78

-21 Elo points in 100 games

Ethereal 14.25 x64 has 3645 Elo points (CCRL Blitz rating list).

Caissa 1.15 x64 has 3627 Elo points (CCRL Blitz rating list).

Little (if) progress. At least for pext-bmi2 versions (I don't know what they - CCRL & CEGT - are testing; Stefan Pohl uses avx2 versions).

============

Next:

I extended (a bit ) my little tournament........

Texel-1.11_x64-avx2-bmi
================

Match conditions:

  -TC=4'+2"
  -Hash=256 MB
  -GUI: Arena 3.5.1
  -Book: SuperGM_4mvs.abk (8 plies book) for both engines
  -1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
  -TBS: 6-men Syzygy bases for both engines +5-men Gaviota (gtb)-only for Texel-1.11_x64-avx2-bmi
  -NNs: defaults
  -Ponder: off
  -OS: Windows 10 Home.

The final result in this match:





+22 -6 =72

+56 Elo points in 100 games for Texel-1.11_x64-avx2-bmi

PowerFritz 18 AVX2 (Ginkgo Vienna x64) has 3493 Elo points (CCRL Blitz rating list).

Texel 1.10 x64 has 3459 Elo points (CCRL Blitz rating list).

My match shows an improvement of about 100 Elo points. Statistically one match is not enough but the new Texel version is great! Congratulations to the author!

================

Next:



     

Uralochka3.41.dev1-avx2
================

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases for both engines
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result:





+7 -13 =80

-21 Elo points in 100 games

Ethereal 14.00 x64 has 3649 Elo points (CCRL Blitz rating list).

Uralochka 3.40a x64 has 3610 Elo points (CCRL Blitz rating list).

Probably the new (development) version of the Uralochka engine wins 1-2 places in the next UHO-Top15 Engines Ratinglist (in the unlikely version that will be tested).




============================

Next:

Obsidian 10 seems stronger than Ethereal 14.25 (and probably also than RubiKO_240112). So a new world number 5. Something tells me that I am not mistaken!

Obsidian10-avx2-pext
==============

Match conditions:

-TC=4'+2"
-Hash=256 MB
-GUI: Arena 3.5.1
-Book: SuperGM_4mvs.abk (8 plies book) for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-TBS: 6-men Syzygy bases for both engines
-NNs: defaults
-Ponder: off
-OS: Windows 10 Home.

The final result:




+7 -9 =84

-7 Elo points in 100 games

Ethereal 14.25 x64 has 3685 Elo points (CCRL Blitz rating list).

Obsidian 9.0 x64 has 3648 Elo points (CCRL Blitz rating list).

Well, I have to admit that I was a little mistaken. A little programming effort is needed to surpass the last Ethereal version (14.25). Because of this I canceled the other match with RubiKO. I still don't see a KO in the match with Obsidian 10....
On another note: the implementation of Syzygy bases in Obsidian 10 is OK. I see that in CCC someone (Frank?) has an obsession with a wrong implementation....

==================

Next: a retro ( ) battle

I have updated my little tournament with the new versions of Lizard and Starzix....... .......

A capture from the RubiKO_20240112 versus Stockfish_240117 match. A practical example of why it is good not to mess with the powerful. It's simple: because you take a beating... ....In short: you are KO!