Reckless 0.8.0 and Zangdar ... could someone check that?

[Frank Quisinsky]

Hi Modern-Times,

the newer GitHub compiles works fine for me.
Problem solved ... thank you!



Best
Frank

So, I think Jim have to compile Reckless 0.8.0 again ... JA isn't fixed!

HINT:
Maybe the same problem PrinChess 0.20.0 JA have.
PrinChess 0.20.0 ... original version works with syzygybases, not the JA version!

[Carbec]

Hi,

I tested the version 4.04 (bmi2-clang-pgo) with Arena under windows 11 .
By default the hash table is 128 MB. You can verify by launching it in a terminal, then use the command "v" as "version" :

D:\Echecs\Programmation\BIN\Zangdar\4.04> .\Zangdar-4.04-bmi2-clang-pgo.exe
v
Zangdar 4.04 NNUE networks/768_ob8_hm.bin
Nombre de clusters : 2097152
Taille d'un cluster : 64 octets
Entr├®es par cluster : 4
Taille d'une entr├®e : 16 octets
Total entr├®es : 8388608
Taille totale : 134217728 134217728 (128) Mo

First test without syzygy tables : found the mate in 10 at depth 36
Second test with syzygy tables : instant result :

2025-08-30 18:29:07,258-->1:position fen 5k2/pp3N2/5K2/5B2/8/8/8/8 w - - 0 1
2025-08-30 18:29:07,258-->1:go infinite
2025-08-30 18:29:07,258**Time for starting analysis:407
2025-08-30 18:29:07,258<--1:info depth 3 score cp 29997 time 0 nodes 0 nps 0 tbhits 1 pv f5e4
2025-08-30 18:29:07,258<--1:bestmove f5e4

I can't test with Shredder since I don't have it.

[chessica]

Hi Modern-Times,

the newer GitHub compiles works fine for me.
Problem solved ... thank you!



Best
Frank

So, I think Jim have to compile Reckless 0.8.0 again ... JA isn't fixed!

HINT:
Maybe the same problem PrinChess 0.20.0 JA have.
PrinChess 0.20.0 ... original version works with syzygybases, not the JA version!

I suspect that it is a Microsoft problem, as I have seen with some engines that the name of the directory for the egtb was not adopted correctly, e.g. "program files" instead of "programme"...etc.

[Frank Quisinsky]

Hi Philippe,

oh, the programmer gave the answere in person.

At first, thanks for your very nice engine!
I like Zangdar a lot, can play complicated Dutch positions with bravour.
A domain from Slow Chess Blitz, you know ... no longer!



Not the topic ...

That explain all!
Shredder GUI asked after engine start for hash-tables.
For a small test, or blitz games I am using 128Mb, type 128
So, i wonder that GUI crashed, now it's quite clear!

Default by, 32, 64, 128, 256, 512, 764, 1024 isn't a good idea I think.
Most others uses 0, 1, 4 Mb as default.
Or a default nobody uses, like 7Mb, 13Mb, 127Mb or 129Mb

So, I can never start a automatically blitz tourney (my standard is 128Mb) for all engines.
If Zangdar have to play his first game, tourney stopped if all engines uses 128Mb (40 moves in 4 minutes = 128Mb, or for 40 moves in 8 minutes I like to give = 256Mb and so on are my standards).

Again, thanks for your engine!

Best
Frank

[Frank Quisinsky]

Hi Esmeralda,

that was my first intention.
So I try out c:\syzygy at first!

Normally I am using ...
c:\Chess\_syzygybases-4, c:\Chess\_syzygybases-5 or c:\Chess\_syzygybases-6
or
c:\Chess\_egbbs-4, c:\Chess\_egbbs-5 ... and so one

Yes, in Nalimov times, some engines had problems with a directory with a blank space.
I remember!



Best
Frank

[Carbec]

Hi,
Thanks for your appreciation.
Unfortunately, I found this bug very weird, so I Investigate more.
And there is indeed a bug when you change the hash size to the default value.
I will post a new version soon, I hope.

[Carbec]

Hi,
There is a new version available 4.04.01.
Shredder should be ok.

[Frank Quisinsky]

Hi Philippe,

Zangdar 4.04.01 runs now perfectly with Shredder GUI.
Many thanks for your bugfix on Sunday!

Best
Frank