Since you’re here...

We hope you will consider supporting us today. We need your support to continue to exist, because good entries are more and more work time. Every reader contribution, however big or small, is so valuable. Support "Chess Engines Diary" even a small amount– and it only takes a minute. Thank you.
============================== My email: jotes@go2.pl



Obsidian dev-16.14 wins Middle Class Engines Tournament (Tests by Jörn Gronemann, 2025.07.21)


Obsidian dev-16.14 has once again claimed victory in a major tournament, "Middle Class Engines." Integral 7.0.0-dev JA secured second place, with PlentyChess 6.0.5 JA finishing third. We're observing a clear trend: the gap in playing strength between "Middle Class" chess engines and Stockfish is consistently narrowing.

 GPU NVIDIA  RTX 3060 ti. GUI-Banksia, For Every Engine only 1 CPU and 512 Hashtables, Book - 4 GM mvs book,  6TBs.

🕒🕒Time 3'+3"   Tournament download with 546 games 
💾 All games CEDR 680.485 games download (01.07.2025)  
@chessenginesdiary

P Engine Score (Tie) +/-/=
1: Obsidian dev-16.14 45.0 / 78 1720.50 (+12 -0 =66)
2: Integral 7.0.0-dev JA 44.0 / 78 1682.00 (+10 -0 =68)
3: PlentyChess 6.0.5 JA 43.0 / 78 1646.25 (+10 -2 =66)
4: Berserk 20250622 42.0 / 78 1613.00 (+8 -2 =68)
5: Stormphrax 7.0.0 JA 41.5 / 78 1600.00 (+5 -0 =73)
6: Viridithas 18.0.0-dev JA 40.5 / 78 1561.50 (+4 -1 =73)
7: Caissa 1.22.1 39.5 / 78 1521.75 (+4 -3 =71)
8: Motor 0.9.0 39.0 / 78 1504.75 (+6 -6 =66)
9: Clover 8.2_JA 39.0 / 78 1486.00 (+6 -6 =66)
10: RubiChess 20250606 JA 38.5 / 78 1484.75 (+3 -4 =71)
11: Horsie 1.1.0 38.0 / 78 1467.75 (+2 -4 =72)
12: Uralochka 3.42.dev14 33.0 / 78 1285.25 (+2 -14 =62)
13: Clarity 8.0.0 JA 32.5 / 78 1282.25 (+1 -14 =63)
14: Titan 1.1.0 30.5 / 78 1191.75 (+2 -19 =57)



Comments