Arasan 23.5

[jdart]

Arasan 23.5 is available from https://www.arasanchess.org.

Changes in Arasan 23.5:
1) Fix bug that could cause over-long sequences to execute mate when mate-in-N found.
2) Multiple changes and fixes to selfplay utility for generating training positions.
3) Decrease null move reduction somewhat more in endgames
4) Fixes to CMake file
5) Fixes to build so it works with C++20 compile.
6) Sync with latest Fathom and nnue changes
7) Changes to book selection logic
8) Don't use gold linker when Clang is the compiler. Fixes #44.
9) Fixes for hash values out of bounds (Github issue #45).
10) Fix Unix/Mac Makefile + CMake file to use -msse2, -mssse3.
11) GUI supports a XXLarge board size.

In terms of playing strength, this should be stronger than 23.4, but by a fairly small amount.

[Graham Banks]

Thanks, Jon.

[Dariusz]

Arasan 23.5 is available from https://www.arasanchess.org.

Changes in Arasan 23.5:
1) Fix bug that could cause over-long sequences to execute mate when mate-in-N found.
2) Multiple changes and fixes to selfplay utility for generating training positions.
3) Decrease null move reduction somewhat more in endgames
4) Fixes to CMake file
5) Fixes to build so it works with C++20 compile.
6) Sync with latest Fathom and nnue changes
7) Changes to book selection logic
8) Don't use gold linker when Clang is the compiler. Fixes #44.
9) Fixes for hash values out of bounds (Github issue #45).
10) Fix Unix/Mac Makefile + CMake file to use -msse2, -mssse3.
11) GUI supports a XXLarge board size.

In terms of playing strength, this should be stronger than 23.4, but by a fairly small amount.

Thank you, Jon

[Chessqueen]

I created a UCI by using Shredder8 and I am using it under Arena 3.5.1. GUI. I believe that Spike 1.4 leiden is rated close to 3000

So far it show that it is stronger than Spike 1.4 rated around 3000

Rank Engine Score Ar Sp S-B
1 Arasanx-32 12.0/19 · ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· · 110=111=1=1=10=00=1? 84.00
2 Spike 1.4 7.0/19 001=000=0=0=01=11=0? · ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· · 84.00


19 of 50 games played

Tournament start: 2023.03.09, 01:49:03
Latest update: 2023.04.03, 00:41:03
Site/ Country: DESKTOP-OFQ3C0P, United States
Level: Blitz 3/3
Hardware: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz with 16.0 GB Memory
Operating system: Windows 10 Home Home Edition (Build 9200) 64 bit
PGN-File: 8/8/8/6k1/8/5BPb/5K1P/8 b - - 2 1
Table created with: Arena 3.5.1

[Chessqueen]

I created a UCI by using Shredder8 and I am using it under Arena 3.5.1. GUI. I believe that Spike 1.4 leiden is rated close to 3000
NOTE: This is very interesting topic ===> https://en.chessbase.com/post/speelman-agony-191
So far it show that it is stronger than Spike 1.4 rated around 3000

Rank Engine Score Ar Sp S-B
1 Arasanx-32 12.0/19 · ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· · 110=111=1=1=10=00=1? 84.00
2 Spike 1.4 7.0/19 001=000=0=0=01=11=0? · ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· · 84.00


19 of 50 games played

Tournament start: 2023.03.09, 01:49:03
Latest update: 2023.04.03, 00:41:03
Site/ Country: DESKTOP-OFQ3C0P, United States
Level: Blitz 3/3
Hardware: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz with 16.0 GB Memory
Operating system: Windows 10 Home Home Edition (Build 9200) 64 bit
PGN-File: 8/8/8/6k1/8/5BPb/5K1P/8 b - - 2 1
Table created with: Arena 3.5.1

[Volker Pittlik]

Arasan 23.5 is available from https://www.arasanchess.org.
...

Appreciated!

Volker

[Chessqueen]

Arasan 23.5 is available from https://www.arasanchess.org.
...

Appreciated!

Volker

You are Welcome, I stopped it at 40 games

Rank Engine Score Ar Sp S-B
1 Arasanx-32 25.5/40 · ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· · 110=111=1=1=10=00=1111=110=1=01==1====== 369.75
2 Spike 1.4 14.5/40 001=000=0=0=01=11=0000=001=0=10==0====== · ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· ·· · 369.75


40 games played / Tournament is finished

Tournament start: 2023.03.09, 01:49:03
Latest update: 2023.04.03, 05:54:49
Site/ Country: DESKTOP-OFQ3C0P, United States
Level: Blitz 3/3
Hardware: ntel(R) Core(TM) i7-4770 CPU @ 3.40GHz with 16.0 GB Memory
Operating system: Windows 10 Home Home Edition (Build 9200) 64 bit
PGN-File: 8/8/8/6k1/8/5BPb/5K1P/8 b - - 2 1
Table created with: Arena 3.5.1

[Peperoni]

Nice Jon

[Archimedes]

Thank you very much. And what I especially like is that Arasan now runs at full speed on Android with NEON support.

The possibility of embedding the network would be good. This could be used to create an APK file to install Arasan on Android.

[Jjaw]

Chessqueen , He wasn't thanking you for anything , He was thanking Jon Dart for another version of HIS fine engine