HypnoS-H 1.0.0 (derived from Stockfish) - new version chess engine

 

HypnoS is a free and strong UCI chess engine derived from Stockfish that analyzes chess positions and computes the optimal moves.

HypnoS does not include a graphical user interface (GUI) that is required to display a chessboard and to make it easy to input moves. These GUIs are developed independently from HypnoS and are available online.

HypnoS-H 1.0.0 what's new?

Aligned with the latest patch:

Simplify use of low-ply history in evasions

Simplify use of low-ply history in evasions

Passed Non-regression STC:

LLR: 2.95 (-2.94,2.94) <-1.75,0.25>

Total: 65024 W: 16991 L: 16804 D: 31229

Ptnml(0-2): 182, 7423, 17119, 7602, 186

https://tests.stockfishchess.org/tests/view/68c23f5459efc3c96b6113df

Passed Non-regression LTC:

LLR: 2.96 (-2.94,2.94) <-1.75,0.25>

Total: 207312 W: 53126 L: 53095 D: 101091

Ptnml(0-2): 126, 21986, 59389, 22041, 114

https://tests.stockfishchess.org/tests/view/68c241e359efc3c96b6113ef

xu-shawn

authored

🔝 Rating Chess Engines Diary CEDR=3758

HypnoS ++ 1.02 vs other engines:

YuliGM 19	43.5/89	-2	89 Partii
JudaS ++ 1.02	36.5/75	-2	75 Partii
Stockfish 17	36.5/74	-1	74 Partii
SF-PRO2 05.02.2025	28.5/59	-2	59 Partii
Killfish PB 090225	27/59	-5	59 Partii
Integral 7.0.0	29.5/58	+1	58 Partii
TROY 042025	24/51	-3	51 Partii
Cool Iris 14	25/50	+0	50 Partii
Perelandra F-M	22/45	-1	45 Partii
ShashChess 38	21.5/43	+0	43 Partii
Artemis 8TR	19.5/39	+0	39 Partii
Stockfish dev-20250213	18/37	-1	37 Partii
CorChess 20250220	16/34	-2	34 Partii
Yuliana 7.0	16/32	+0	32 Partii
Marauders 4.0	14/27	+1	27 Partii
Dark SisTer 5	13.5/27	+0	27 Partii
SF-PRO2 19.03.2025	13/26	+0	26 Partii
Contact 12 XL	13/26	+0	26 Partii
CorChess PB 240225	12/26	-2	26 Partii
SpecTral 5	12/24	+0	24 Partii
SpecTral v3	10/23	-3	23 Partii
Yuliirma 5.0	11/22	+0	22 Partii
Artemis 9TR	11/22	+0	22 Partii
Dark SisTer v5	11/22	+0	22 Partii
JigSaw 6.0	11/22	+0	22 Partii
Dark SisTer 5.0	10/20	+0	20 Partii

by Marco Zerbinati

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