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Cool Iris 15 wins Strong Engines Tournament, (Tests by Jörn Gronemann, 2026.05.04)

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Cool Iris 15 once again won the tournament of powerful chess engines. Sky II took second place and YuliGM Pro 20 took third.

CEDR 871.259 games download (01.05.2026)

🕒🕒Time 3'+3"   Tournament download with 960 games 
#chessenginesdiary
GPU NVIDIA  RTX 3060 ti. GUI-Banksia, For Every Engine only 1 CPU and 512 Hashtables, Book - 4 GM mvs, book,  6TBs. 

P Engine Score (Tie) +/-/=
1: Cool Iris 15 62.0 / 120 3709.50 (+6 -2 =112)
2: Sky II 62.0 / 120 3707.50 (+7 -3 =110)
3: YuliGM Pro 20 61.5 / 120 3684.50 (+9 -6 =105)
4: Stockfish 18 JA 61.0 / 120 3657.50 (+4 -2 =114)
5: DarkSeid 11 SE 61.0 / 120 3652.50 (+5 -3 =112)
6: Artemis 30.2TR PrO 60.5 / 120 3629.00 (+5 -4 =111)
7: Private 19sf 2.63 VICE 60.0 / 120 3601.25 (+2 -2 =116)
8: SF TACTICAL 270426 60.0 / 120 3596.50 (+2 -2 =116)
9: SpecTral 15 60.0 / 120 3595.25 (+5 -5 =110)
10: CorChess 20260419 59.5 / 120 3572.00 (+2 -3 =115)
11: Stockfish dev-20260426 59.5 / 120 3570.75 (+4 -5 =111)
12: JigSaw 8.1 59.0 / 120 3543.75 (+2 -4 =114)
13: SF-PRO2 30.03.2026 59.0 / 120 3542.75 (+1 -3 =116)
14: Hlamnick 260426 59.0 / 120 3542.50 (+3 -5 =112)
15: ShashChess 41 58.5 / 120 3512.75 (+2 -5 =113)
16: YuliGM 2026 57.5 / 120 3457.50 (+3 -8 =109)


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