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

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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)



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