Obsidian dev-16.08 wins Middle Class Engines Tournament (Tests by Jörn Gronemann, 2025.06.13)

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The next Middle Class Engines tournament was won by Obsidian dev-16.08. Berserk 20250606 also had the same number of points, but had slightly worse auxiliary scores. In third place was the Alexandria-8.0.0 JA engine. More results soon.

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 660 games 
💾 All games CEDR 664.406 games download (01.06.2025)  
@chessenginesdiary

P Engine Score (Tie) +/-/=
1: Obsidian dev-16.08 61.0 / 110 3310.00 (+12 -0 =98)
2: Berserk 20250606 61.0 / 110 3303.75 (+13 -1 =96)
3: Alexandria-8.0.0 JA 58.5 / 110 3183.25 (+9 -2 =99)
4: Integral 7.0.0 JA 58.0 / 110 3153.00 (+10 -4 =96)
5: PlentyChess 6.0.0 JA 57.5 / 110 3133.00 (+8 -3 =99)
6: Caissa 1.22 54.5 / 110 2979.50 (+5 -6 =99)
7: Starzix 6.1 6.1 JA 54.0 / 110 2970.25 (+2 -4 =104)
8: Motor 0.9.0 53.5 / 110 2938.25 (+3 -6 =101)
9: RubiChess 2025 JA 52.5 / 110 2893.00 (+1 -6 =103)
10: Horsie 1.1.0 52.5 / 110 2880.50 (+4 -9 =97)
11: Fritz 20 49.5 / 110 2718.50 (+4 -15 =91)
12: Clover 8.1.16 47.5 / 110 2635.00 (+1 -16 =93)

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