Caissa 1.24 JA wins Arena New Engines Test, 2025.12.08-17

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Caissa 1.24 JA wins a major tournament of the latest chess engine versions. Reckless 0.9.0 dev-0dd5b9ac came in second, and Reckless 0.9.0 dev-c5af2cea came in third. As you can see, we tested 26 new engines.

 CEDR 788.872 games download (01.12.2025)

💾 Tournament download with 650 games
💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Arena
👍 #chessenginesdiary Country - Poland, City - Malbork  🕓 Time 3'+3"

P Engine CEDR Score (Tie) Chg +/-/=
1: Caissa 1.24 JA 3712 44.0 / 50 990.75 +15 (+38 -0 =12)
2: Reckless 0.9.0 dev-0dd5b9ac 3728 43.0 / 50 953.50 +5 (+36 -0 =14)
3: Reckless 0.9.0 dev-c5af2cea 3728 41.0 / 50 922.25 -15 (+32 -0 =18)
4: Cfish 12.8 3647 41.0 / 50 893.50 -5 (+34 -2 =14)
5: Halogen 15.26.0 3686 40.5 / 50 897.25 -15 (+32 -1 =17)
6: Cinder 0.4.0 3650 40.5 / 50 859.25 -10 (+35 -4 =11)
7: Schoenemann 0.5.0 2400 32.0 / 50 630.75 +170 (+21 -7 =22)
8: Eleanor 3.0 2400 31.5 / 50 591.50 +165 (+23 -10 =17)
9: Tcheran 9.0 2242 31.0 / 50 583.50 +215 (+22 -10 =18)
10: Prelude 2.1 2400 30.5 / 50 581.25 +155 (+21 -10 =19)
11: Quirky 2.1 JA 2400 29.0 / 50 551.50 +140 (+18 -10 =22)
12: C4ke 2.0 2400 28.5 / 50 508.50 +135 (+20 -13 =17)
13: Myrddin 0.94 2629 25.0 / 50 440.00 -20 (+19 -19 =12)
14: Critter 1.6a 3230 23.5 / 50 412.50 -135 (+14 -17 =19)
15: Sturddle 2.4.0 2400 23.0 / 50 403.75 +80 (+12 -16 =22)
16: Cwtch 4 2400 23.0 / 50 397.00 +80 (+15 -19 =16)
17: Petrel 3.1 JA 2400 21.0 / 50 372.00 +60 (+13 -21 =16)
18: Prune 3.0.0 2400 20.0 / 50 309.25 +50 (+11 -21 =18)
19: Jackychess 25.12 JA 2779 15.5 / 50 248.25 -175 (+9 -28 =13)
20: 4kc 2400 14.0 / 50 193.25 -10 (+8 -30 =12)
21: Caligula 3.0 2761 13.5 / 50 215.25 -195 (+6 -29 =15)
22: Chessnix 1.2 2400 11.0 / 50 138.50 -40 (+6 -34 =10)
23: Knightx 4.7 2906 9.5 / 50 123.00 -250 (+6 -37 =7)
24: Grail 1.0.1 2400 9.0 / 50 108.00 -60 (+5 -37 =8)
25: Grail 1.0.0 2400 8.5 / 50 106.25 -65 (+3 -36 =11)
26: Gyatso 1.0.0 2400 1.0 / 50 21.00  -140 (+1 -49 =0)


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