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Stockfish 17.1 wins Strong Engines Tournament (Tests by Jörn Gronemann, 2025.06.08


Stockfish 17.1 won a major tournament of the strongest chess engines. Second place for Obsidian dev-16.07 and third for PlentyChess 6.0.0 JA. More results coming 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 900 games 
💾 All games CEDR 664.406 games download (01.06.2025)  
@chessenginesdiary

P Engine Score (Tie) +/-/=
1: Stockfish 17.1 85.0 / 130 5118.00 (+40 -0 =90)
2: Obsidian dev-16.07 74.0 / 130 4387.25 (+20 -2 =108)
3: PlentyChess 6.0.0 JA 73.5 / 130 4344.00 (+20 -3 =107)
4: Caissa 1.22 71.0 / 130 4189.00 (+18 -6 =106)
5: Alexandria-8.0.0 JA 70.5 / 130 4148.75 (+17 -6 =107)
6: Motor 0.9.0 69.0 / 130 4080.00 (+16 -8 =106)
7: Berserk 20250606 66.5 / 120 3912.50 (+16 -3 =101)
8: Berserk 20250307b JA 66.0 / 120 3872.75 (+19 -7 =94)
9: RubiChess 20250520 66.0 / 130 3866.50 (+17 -15 =98)
10: Starzix 6.1 JA 65.5 / 130 3849.25 (+12 -11 =107)
11: Horsie 1.1.0 65.5 / 130 3827.75 (+15 -14 =101)
12: Clover 8.1.16 64.5 / 130 3795.25 (+12 -13 =105)
13: Fritz 20 62.0 / 130 3613.75 (+11 -17 =102)
14: Spaghet BologNNese dev-1.1.3 JA 1.0 / 130 74.75 (+0 -128 =2)

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