Stockfish 18 won the 1st Chess Engine League. However, it wasn't an easy victory, as runner-up Integral 7 dev.8bab JA finished with the same number of points. The final ranking was decided by the Sonneborn-Berger tie-break score, with Obsidian dev-16.15 SE taking third place.
You can find more information about the CEDR Chess Engine League on the dedicated website - LEAGUE.
CEDR 820.396 games download (01.02.2026)
💾 Tournament download with 240 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: | Stockfish 18 | 3755 | 17.0 / 30 | 250.25 | -6 | (+4 -0 =26) |
| 2: | Integral 7 dev.8bab JA | 3725 | 17.0 / 30 | 250.00 | +9 | (+4 -0 =26) |
| 3: | Obsidian dev-16.15 SE | 3732 | 16.5 / 30 | 244.00 | +0 | (+3 -0 =27) |
| 4: | Dragon 3.3 | 3712 | 15.5 / 30 | 231.75 | +0 | (+1 -0 =29) |
| 5: | PlentyChess Alamat 7.0.41 SE | 3729 | 15.5 / 30 | 231.00 | -9 | (+1 -0 =29) |
| 6: | Berserk 20250622 | 3713 | 15.5 / 30 | 231.00 | +0 | (+1 -0 =29) |
| 7: | Halogen 15.31.7 | 3682 | 15.5 / 30 | 230.75 | +15 | (+1 -0 =29) |
| 8: | Alexandria 8.1.12 JA | 3721 | 15.5 / 30 | 230.50 | -6 | (+2 -1 =27) |
| 9: | Caissa 1.24 JA | 3709 | 15.0 / 30 | 225.00 | -6 | (+0 -0 =30) |
| 10: | Quanticade 3.0 Cronus | 3686 | 15.0 / 30 | 225.00 | +9 | (+1 -1 =28) |
| 11: | Motor 0.9.0 | 3678 | 14.5 / 30 | 215.50 | +6 | (+2 -3 =25) |
| 12: | Clover 9.1 | 3693 | 14.0 / 30 | 210.25 | -3 | (+0 -2 =28) |
| 13: | Stormphrax 7.0.0 | 3683 | 14.0 / 30 | 209.25 | +0 | (+1 -3 =26) |
| 14: | Rubichess 20250606 JA | 3697 | 14.0 / 30 | 208.50 | -6 | (+1 -3 =26) |
| 15: | Starzix 6.1 JA | 3673 | 13.0 / 30 | 194.75 | -9 | (+0 -4 =26) |
| 16: | Renegade 1.2.0 | 3621 | 12.5 / 30 | 187.50 | +12 | (+0 -5 =25) |


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