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Weiss 2.1 JA wins 4 League CEDR edition 04/2024, by Chess Engines Diary, 2024.05.23-24

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The fourth league of the best chess engines (TOP-64) was won by the Weiss 2.1 JA engine. The engines from places 2 and 3 were also promoted to the 3rd league - Avalanche 2.1.0 and MrBob 1.3.0. 

The Defenchess 2.3 engine, which is already 4 years old, was relegated to the amateur league, which means that, according to the regulations, it will no longer take part in the CEDR league.


🥇Weiss 2.1 JA 🥈Avalanche 2.1.0 🥉MrBob 1.3.0

Promotion to the 3 League: Weiss 2.1 JA, Avalanche 2.1.0, MrBob 1.3.0. 
Relegation to the amateur group: Defenchess 2.3, Combusken 2.0.0, Drofa 4.1.1 JA.

🕓 Time 3'+3" 💻Dell G15 SE, i7-11800H RAM 16,0 GB 🖬 GUI-Banksia
All CEDR 333.448 games download (01.05.2024 - 3'+3") 
 
💾 240 games from the tournament download 👍 @chessenginesdiary 
Country - Poland, City - Malbork

Tech table:
EngineKN/moveNPSdep/movtime/movmov/gametime/gamefails
Avalanche 2.1.06900149253126.24.689.9415.5
Combusken 2.0.026556526609527.45.078.5396.02
Counter 5.519384410565823.44.790.8428.82
Defenchess 2.320145415430630.74.888.0426.91
Drofa 4.1.1 JA19296400161526.44.885.4412.0
Gogobello 3.09269196711724.44.794.7446.4
Halogen 1125576535488028.94.891.0434.61
Lifish+HalfKP 1.021410718235633.53.0101.3302.1
LTChess 9.310936235511626.94.698.4456.9
MrBob 1.3.09037207568528.64.488.1383.4
Reckless 0.6.031405707364826.84.488.2391.7
Renegade 1.0.04986112926331.14.4105.7466.9
Stash 35.030126689291233.14.4117.6514.1
Starfish-0.16290142837428.74.483.1366.1
Weiss 2.1 JA25674511911730.05.082.1411.6
Xiphos 0.6.1 JA27856570100131.24.979.1386.71


League – strongest chess engines CEDR TOP 64
1 League Edition 04/2024 - 3’+3” Rating Score note
1. Stockfish 2024051807 3761 19.5 / 30
2. Corchess 20240502 3770 19.0 / 30
3. ShashChess 35.3 3747 18.0 / 30
4. Chess-System-Tal-NNUE-2 3643 17.5 / 30
5. SugaR Al SE 3727 16.5 / 30
6. Dragon 3.3 3712 16.5 / 30
7. RubiChess 20240112 3650 16.5 / 30
8. Obsidian 12 3698 16.0 / 30
9. Berserk 13 3700 15.0 / 30
10. Dragon free 3615 14.5 / 30
11. Caissa 1.18 3680 14.5 / 30
12. Rofchade 3.1 3620 14.5 / 30
13. Clover 6.1.24 JA 3645 13.0 / 30
14. Igel 3.5.5 3590 13.0 / 30 relegation
15. Velvet 7.3.0 3581 8.5 / 30 relegation
16. Lc0 BT4 *crash 3715 7.5 / 30 relegation





2 League Edition 04/2024 – 3’+3” Rating Score note
1. Seer 2.8.0 3635 19.5 / 30 promotion
2. Koivisto 9.20 Impan 3608 19.0 / 30 promotion
3. Alexandria 6.1.0 3669 19.0 / 30 promotion
4. Arasan 24.2.2 3582 17.0 / 30
5. Fire 7.3 3584 17.0 / 30
6. Viridithas 12.0.0 3576 15.5 / 30
7. Lizard 10.3 3587 15.5 / 30
8. Altair 7.0.3 JA 3536 15.0 / 30
9. Tenax 1.0 3500 14.5 / 30
10. Stormphrax 4.1.0 3556 13.0 / 30
11. Akimbo 1.0.0 3539 13.0 / 30
12. Booot 7.3 3539 13.0 / 30
13. Peacekeeper 2.40 3518 13.0 / 30
14. Slowchess 2.9 3554 12.0 / 30 relegation
15. Texel 1.11 3490 12.0 / 30 relegation
16. Nemorino 6.00 3491 12.0 / 30 relegation





3 League Edition 04/2024 – 3’+3” Rating Score note
1. Willow 4.0 3504 18.0 / 30 promotion
2. Wasp 6.50 3470 18.0 / 30 promotion
3. Starzix 4.0 NNUE 3523 17.5 / 30 promotion
4. Superultra 2.0 NNUE 3500 17.0 / 30
5. Minic 3.41 3505 15.5 / 30
6. Pawn 3.0 3484 15.5 / 30
7. Komodo 14.1 *free 3438 15.0 / 30
8. Rice 8.0 3483 15.0 / 30
9. Midnight v9 3455 15.0 / 30
10. Cheng4 0.48 3165 14.5 / 30
11. Black Core 6.0 3419 14.0 / 30
12. Marvin 6.2.0 3447 13.5 / 30
13. Smallbrain 7.0 NNUE 3435 13.5 / 30
14. Tucano 11.19 JA 3411 13.5 / 30 relegation
15. Devre 5.0 3371 13.0 / 30 relegation
16. Pedone 3.1 3453 11.5 / 30 relegation





4 League Edition 04/2024 – 3’+3” Rating Score note
1. Stash 35 3364 21.5 / 30 promotion
2. StockDory Starfish 0.1 3363 19.5 / 30 promotion
3. Xiphos 0.6.1 JA 3356 19.0 / 30 promotion
4. Weiss 2.1 JA 3339 19.0 / 30
5. Lifish 1.0 NNUE 2980 17.5 / 30
6. Renegade 1.0.0 3469 15.5 / 30
7. Halogen 11 3417 15.5 / 30
8. Counter 5.5 3358 15.0 / 30
9. Gogobello 3.0 3308 14.5 / 30
10. LTChess 9.3 3429 14.5 / 30
11. MrBob 1.3.0 3312 13.5 / 30
12. Avalanche 2.1.0 3356 13.0 / 30
13. Defenchess 2.3 3294 12.5 / 30 relegation
14. Reckless 0.6.0 3158 10.0 / 30 relegation
15. Drofa 4.1.1 JA 3285 10.0 / 30 relegation
16. Combusken 2.0 3264 9.5 / 30 relegation





Eliminations – Amateurs an new engines
A-01 Edition 04/2024 – 3’+3” Rating Score note
1 Zahak 10.0 3324

2 Frozenight 6.0.0 3329

3 Winter 3.10a JA 3263

4 Leorik 3.0 2993

5. Laser 1.7 3287

6. Kuma 1.2 3275

7. Danasah 9.1 NNUE 3266

8. Little Goliath 3.17 3322

9. Svart 6.0.0 3281

10. Pedantic 1.0.0 3124

11. Flounder 0.5.0.2 3210

12. Mida 2.3.1 3118

13. Mittens 0.9 3177

14. Protej 0.6.6 3125

15. Ippolit 032324 3115

16. Invictus r382 3149

17 Saturn 1.3 2850

18 Nalwald 18 3306

19 GreKo 2021.08 NNUE 3300

20 Toga IV 1.1 JA 3293






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