Wreckless 0.2.0 wins Challenger Group E Season 08/2026 by Chess Engines Diary

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The final qualifying round for the Chess Engine League – Challenger Group E Season 08/2026 – has concluded. The Wreckless 0.2.0 engine won. In addition to the winner, the following engines advanced to Group D: Tcheran 13.0, Ruthorin 1.9.9, Ursus 1.0, Clockwork 20260806, and Zigqueen 5.8.3.

You can find more information about the CEDR Chess Engine League on the dedicated website - LEAGUE.

CEDR 903.628 games download (until 30.06.2026)
All  Games 59.595 CEDR from 01.07.2026 download.
💾 Tournament download with 1260 games
💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Myracle, book: avt-2026b

#chessenginesdiary Country - Poland, City - Malbork  🕓 Time 3'+3"

P Engine Score (Tie) +/-/=
1: Wreckless 0.2.0 67.0 / 70 2242.00 (+64 -0 =6)
2: Tcheran 13.0 62.0 / 70 1973.00 (+55 -1 =14)
3: Ruthorin 1.9.9 60.5 / 70 1913.00 (+52 -1 =17)
4: Ursus 1.0 56.5 / 70 1683.00 (+49 -6 =15)
5: Clockwork 20260806 56.0 / 70 1694.50 (+47 -5 =18)
6: Zigqueen 5.8.3 56.0 / 70 1665.50 (+45 -3 =22)
7: Rodent V 1.1 55.0 / 70 1593.50 (+46 -6 =18)
8: Sable 3.0.0 52.5 / 70 1501.00 (+45 -10 =15)
9: Bagatur.cpp 1.0 52.5 / 70 1483.25 (+45 -10 =15)
10: JustBot 0.3.0 51.5 / 70 1439.00 (+42 -9 =19)
11: Onyx 2.0 51.5 / 70 1425.75 (+44 -11 =15)
12: Potential-unlocked JA 48.0 / 70 1330.00 (+40 -14 =16)
13: Gyatso 1.5.0 48.0 / 70 1287.75 (+41 -15 =14)
14: Rusty Rival 1.0.53 42.0 / 70 1007.00 (+37 -23 =10)
15: Noggin 2.1 40.5 / 70 973.75 (+34 -23 =13)
16: Ceibo 1.10 36.0 / 70 858.25 (+27 -25 =18)
17: Ember 1.2.0 35.5 / 70 810.25 (+29 -28 =13)
18: Kobra 2.1 34.0 / 70 864.75 (+26 -28 =16)
19: Bobcat 8.0 JA 34.0 / 70 742.75 (+26 -28 =16)
20: Pluto 1.0.1 29.5 / 70 685.00 (+18 -29 =23)
21: Sentinel 2.0 JA 28.5 / 70 587.00 (+21 -34 =15)
22: Byte-knight 4.0.0 27.5 / 70 584.50 (+20 -35 =15)
23: Cheese 3.3.0 JA 27.5 / 70 545.75 (+21 -36 =13)
24: Eleanor 4.1 JA 27.0 / 70 653.00 (+26 -42 =2)
25: Ratsu 2.1.0 24.0 / 70 481.00 (+19 -41 =10)
26: MadChess 3.3 23.0 / 70 460.75 (+15 -39 =16)
27: KnightX 4.92 23.0 / 70 448.75 (+17 -41 =12)
28: Lux 5.0 20.0 / 70 352.25 (+15 -45 =10)
29: Fatalii 0.10.1 20.0 / 70 349.75 (+16 -46 =8)
30: Drosophila 1.6 JA 18.5 / 70 350.50 (+15 -48 =7)
31: Mittens CEDR 08.2026 14.5 / 70 229.75 (+11 -52 =7)
32: Chal 1.4.1 14.5 / 70 177.75 (+11 -52 =7)
33: Luna CE 2.1.0 JA 10.5 / 70 151.00 (+9 -58 =3)
34: Luminex 5.15.0 7.5 / 70 83.25 (+7 -62 =1)
35: VeryChess 0.4.0 4.5 / 70 56.50 (+3 -64 =3)
36: Tuna2 JA 1.0 / 70 27.00 (+1 -69 =0)



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