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Chess.cpp 4.1.0 JA wins Group E-2 Chess Engines Diary season 07/2025, 2025.09.30-10.02


Qualifying round for the TOP-64 Chess Engines League. The Group E-2 Chess Engines Diary season 07/2025 has concluded. Nine rounds were played using the Swiss system.

The Chess.cpp 4.1.0 JA engine won, with Cinder 0.3.1 in second place, Illumina 3.0 JA in third, and RukChess 4.1.0 JA in fourth. These four engines advanced to the E-01 group. The bottom four engines in the table were relegated to the lower group, E03.


 CEDR 760.349 games download (01.10.2025)

💾 Tournament download with 144 games
💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Banksia
👍 #chessenginesdiary Country - Poland, City - Malbork  🕓 Time 3'+3"

P Engine CEDR Score (Tie) Chg +/-/=
1: Chess.cpp 4.1.0 JA 2400 7.0 / 9 51.5 +51 (+5 -0 =4)
2: Cinder 0.3.1 3575 7.0 / 9 49.5 -9 (+5 -0 =4)
3: Illumina 3.0 JA 2400 6.5 / 9 48.5 +50 (+5 -1 =3)
4: RukChess 4.1.0 JA 3331 6.5 / 9 48.0 -2 (+5 -1 =3)
5: Lifish 1.0 3257 6.0 / 9 48.5 -5 (+4 -1 =4)
6: Perseus 1.1 2400 5.5 / 9 49.0 +38 (+3 -1 =5)
7: Princhess 0.20.0 dev.4b66 JA 3183 5.5 / 9 48.5 -6 (+3 -1 =5)
8: Flounder 0.5.0.2 3221 5.5 / 9 47.0 -12 (+4 -2 =3)
9: Saxton 1.0.0 2400 5.5 / 9 42.0 +41 (+4 -2 =3)
10: Wahoo 4.0.0 3123 5.0 / 9 46.0 -14 (+4 -3 =2)
11: Vengeance 3.1.0 JA 2995 5.0 / 9 38.5 -4 (+4 -3 =2)
12: Vault 0.4.1 JA 2400 5.0 / 9 34.0 +37 (+3 -2 =4)
13: Orion 1.0 3084 4.5 / 9 48.0 -6 (+3 -3 =3)
14: Puffin 5.0 2695 4.5 / 9 44.5 -4 (+3 -3 =3)
15: Cheers 1.0.0 2894 4.5 / 9 41.5 +3 (+2 -2 =5)
16: Thrawn 2.1 JA 2415 4.5 / 9 41.0 +32 (+4 -4 =1)
17: Rengar 2.1.1 2536 4.5 / 9 40.5 +22 (+4 -4 =1)
18: Anduril 3116 4.5 / 9 40.0 -5 (+3 -3 =3)
19: 4ku 5.1 3088 4.5 / 9 38.0 -21 (+3 -3 =3)
20: Ceibo 1.0 2987 4.5 / 9 37.5 -16 (+3 -3 =3)
21: The Baron 3.45 3008 4.5 / 9 34.0 -8 (+2 -2 =5)
22: Inanis 1.6.0 2972 4.5 / 9 32.5 -4 (+2 -2 =5)
23: Polaris 1.8.1 3065 4.0 / 9 43.0 -24 (+2 -3 =4)
24: Kobra 2.0 JA 2641 4.0 / 9 37.0 +19 (+2 -3 =4)
25: KnightX 4.5 2893 3.5 / 9 37.5 +8 (+3 -5 =1)
26: Cheese 3.3.0 JA 3081 3.5 / 9 34.0 -19 (+2 -4 =3)
27: CT800 1.46 2845 3.5 / 9 33.0 -13 (+3 -5 =1)
28: Dumb 2.3 2810 3.0 / 9 34.5 -23 (+2 -5 =2)
29: Mayhem 8.8 JA 2736 2.5 / 9 36.0 +1 (+2 -6 =1)
30: LTChess 9.3 3360 2.0 / 9 30.5 -59 (+0 -5 =4)
31: Ivanhoe 66 2877 1.5 / 9 31.5 -29 (+1 -7 =1)
32: Delocto 0.7 2873 1.5 / 9 30.5 -31 (+1 -7 =1)


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