DON Chess Engine

[chessica]

Code: Select all

Rank Name                          Elo     +/-   Games   Score    Draw 
   1 Stockfish-11                  382     170      30   90.0%   20.0% 
   2 Ethereal-12.50                207     137      30   76.7%   20.0% 
   3 SOS-51_Arena                 -147     141      30   30.0%    6.7% 
   4 DON                          -585     nan      30    3.3%    6.7% 

SPRT: llr 0 (0.0%), lbound -inf, ubound inf
60 of 60 games finished.

Player: DON
"Draw by fifty moves rule": 1
"Draw by insufficient mating material": 1
"Loss: Black mates": 14
"Loss: White mates": 14
Player: Ethereal-12.50
"Draw by 3-fold repetition": 3
"Draw by fifty moves rule": 1
"Draw by insufficient mating material": 2
"Loss: Black mates": 1
"Loss: White mates": 3
"Win: Black mates": 10
"Win: White mates": 10
Player: SOS-51_Arena

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My Tournament2  2026

	1	2	3	4	
1	Stockfish-11	**********	1½½½½½111½	1111111111	1111111111	27.0/30
2	Ethereal-12.50	0½½½½½000½	**********	1111111111	1111111111	23.0/30
3	SOS-51_Arena	0000000000	0000000000	**********	11111111½½	9.0/30
4	DON	0000000000	0000000000	00000000½½	**********	1.0/30

[erashid]

Please check out the latest build of DON here:
I uploaded to 3 servers.

1. mediafire
https://www.mediafire.com/folder/06ewg9vo8mfuj/DON

2. mega
https://mega.nz/folder/Cc1zkbAR#bnycmCX38aGjK6YavnMWqw

3. pixeldrain
https://pixeldrain.com/l/dWZSiJZ8


Please tell me if you want other builds also.
NOTE: source file given
I uploaded the following ARCH for windows.

1. DON-SSSE3
2. DON-SSSE3-POPCNT
3. DON-SSE41-POPCNT
4. DON-AVX2
5-. DON-BMI2
5*. DON-BMI2-COMP
6-. DON-AVXVNNI
6*. DON-AVXVNNI-COMP
7-. DON-AVX512
7*. DON-AVX512-COMP

*NOTE: *COMP = Compressed version
- ~50% lower memory usage, typically 1–2% faster.
- Recommended for long gameplay and analysis.

Thanks
Ehsan Rashid

[chessica]

No, I won't do that again. Don doesn't seem suitable for fast chess or needs more power.

[chessica]

No, I won't do that again. Don doesn't seem suitable for fast chess or needs more power.

For my PC:

Code: Select all

Bereich		DON			Stockfish
Spielstärke	schwächer		stärker
Stabilität	geringer		sehr hoch
Thread‑Nutzung	überdimensioniert	optimal
Hash‑Nutzung	überdimensioniert	optimal
Empfehlung	❌ nicht sinnvoll	✔️ beste Wahl

[erashid]

No, I won't do that again. Don doesn't seem suitable for fast chess or needs more power.

For my PC:

Code: Select all

Bereich		DON			Stockfish
Spielstärke	schwächer		stärker
Stabilität	geringer		sehr hoch
Thread‑Nutzung	überdimensioniert	optimal
Hash‑Nutzung	überdimensioniert	optimal
Empfehlung	❌ nicht sinnvoll	✔️ beste Wahl

There is bug fix.

Which was causing the issue.

Final version is fixed.

Thanks

[chessica]

It's unbelievable, DON always makes his move after one millisecond.

[Ras]

Moderation: erashid agreed to release the source code in the next posting. Until that happens, any further postings from erashid regarding DON will be deleted and result in a temporary ban of one week.

[chessica]

Well, here he has published them in the openchess forum: https://www.open-chess.org/viewtopic.php?p=43969#p43969

DON Chess Engine

Post by erashid » Mon Jan 12, 2026 9:05 am.


Here are the sources
https://www.mediafire.com/file/gvnz86rs ... N.zip/file

[erashid]

Moderation: erashid agreed to release the source code in the next posting. Until that happens, any further postings from erashid regarding DON will be deleted and result in a temporary ban of one week.

I think you not read the post.

1. mediafire
https://www.mediafire.com/folder/06ewg9vo8mfuj/DON

2. mega
https://mega.nz/folder/Cc1zkbAR#bnycmCX38aGjK6YavnMWqw

3. pixeldrain
https://pixeldrain.com/l/dWZSiJZ8


Please tell me if you want other builds also.
NOTE: source file given

Thanks