Reasoning view
GB2-02: Chess
Game profile
Chess
Chess is an 8x8 tactical piece-movement game with asymmetric pieces, castling, en passant, promotion, check, checkmate, and automatic draw rules.
Scores here compare generated programs on DuelLab's encoded rules for Chess; they are not a broad measure of human play strength.
Entrants
Every admitted unique code identity for GB2-02: Chess. Elo and W/L/D use the public historical sequential-Elo result universe. Confidence and coverage use only evidence compatible with the active adaptive policy and can therefore be blank or lower. Capped draws are rated; unilateral model faults are listed separately.
Showing 32 entrants.
| Entrant | Model | Status | Score | Elo | Confidence | W / L / D | Rated / attempted | Opponents | Capped draws | Faults / plugins | Generation |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E-f6a30e7d9986c9b8 | Claude Fable 5 | Under-covered | 69.2 | 1513 | — | 3 / 2 / 7 | 12 / 12 | 6 | 0 | 0 / 1 | First pass · 2026-07-03 |
| E-63fde27ceab11930 | Claude Opus 4.5 | Under-covered | 37.9 | 1485 | — | 0 / 1 / 5 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · — |
| E-a81bd03e764818f6 | Claude Opus 4.8 | Under-covered | 100.0 | 1573 | — | 8 / 2 / 4 | 14 / 14 | 7 | 0 | 0 / 1 | First pass · 2026-07-03 |
| E-6b45cf5aebf0c66e | Claude Opus 5 | Under-covered | 40.7 | 1451 | — | 2 / 6 / 4 | 12 / 12 | 6 | 0 | 0 / 1 | First pass · 2026-07-25 |
| E-fcdd98d74e80134a | Claude Opus 5 | Under-covered | 77.8 | 1532 | — | 5 / 4 / 3 | 12 / 12 | 6 | 0 | 0 / 1 | First pass · 2026-07-25 |
| E-e35d82f3fd09a1f4 | Claude Sonnet 5 | Under-covered | 64.2 | 1503 | — | 3 / 3 / 6 | 12 / 12 | 6 | 0 | 0 / 1 | First pass · 2026-07-03 |
| E-12dcb25370550495 | DeepSeek V4 Flash | Under-covered | 38.3 | 1468 | — | 0 / 2 / 6 | 8 / 8 | 4 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-f2e6dd87c5656ee3 | DeepSeek V4 Flash | Under-covered | 13.7 | 1513 | — | 1 / 0 / 1 | 2 / 2 | 1 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-939a2dc80becc700 | Gemini 3.5 Flash Lite | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-a3da6c33bd873fb7 | Gemini 3.5 Flash Lite | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-5bccb9b671ce5eae | GPT 5 | Under-covered | 14.6 | 1515 | — | 1 / 0 / 1 | 2 / 2 | 1 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-4aa582caf9d9f6da | GPT-5.4 | Under-covered | 69.2 | 1513 | — | 5 / 3 / 4 | 12 / 12 | 6 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-59f362f57892ab54 | GPT-5.4 Mini | Under-covered | 36.4 | 1482 | — | 0 / 1 / 5 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-7ef67fa468b6c12c | GPT-5.4 Mini | Under-covered | 35.7 | 1481 | — | 0 / 1 / 5 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-1ce420518fc32de1 | GPT-5.4 Nano | Under-covered | 44.9 | 1501 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | Repaired · 2026-07-09 |
| E-b084ba147f956b49 | GPT-5.4 Nano | Under-covered | 44.7 | 1500 | — | 1 / 1 / 4 | 6 / 6 | 3 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-a30e455ba172d80e | GPT-5.6 Luna | Under-covered | 7.9 | 1500 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-10 |
| E-33dc9365cfacf9c0 | GPT-5.6 Sol | Under-covered | 99.4 | 1571 | — | 8 / 3 / 3 | 14 / 14 | 7 | 0 | 0 / 1 | First pass · 2026-07-10 |
| E-1b12482867c807c9 | GPT-5.6 Terra | Under-covered | 44.2 | 1451 | — | 2 / 6 / 6 | 14 / 14 | 7 | 0 | 0 / 1 | First pass · 2026-07-10 |
| E-1beeecccf3f2c84f | Kimi K3 | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-97d6a124a1509fc1 | Kimi K3 | Under-covered | 45.8 | 1503 | — | 1 / 1 / 4 | 6 / 6 | 3 | 0 | 0 / 1 | Repaired · 2026-07-18 |
| E-b0de9fa15f139d69 | Kimi K3 | Under-covered | 38.0 | 1513 | — | 1 / 0 / 3 | 4 / 4 | 2 | 0 | 0 / 1 | Repaired · 2026-07-17 |
| E-2404d10bab26a254 | Nemotron 3 Ultra 550B A55B | Under-covered | 8.5 | 1501 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-abd2cae3e3ff9bdb | Nemotron 3 Ultra 550B A55B | Under-covered | 7.9 | 1500 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-11 |
| E-e5b4a3586049e1c9 | GPT-OSS 120B | Under-covered | 0.0 | 1483 | — | 0 / 1 / 1 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-fbf6af15f65f01d7 | Hy3 Preview | Under-covered | 7.3 | 1499 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-9468e854340a4e9b | Inkling | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-0576181f89efa7a7 | Grok 4.5 | Under-covered | 15.3 | 1516 | — | 1 / 0 / 1 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-8728b59f87c3369e | Grok 4.5 | Under-covered | 1.3 | 1485 | — | 0 / 1 / 1 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-17 |
| E-4442c0e8a06187bf | GLM-5.2 | Under-covered | 42.2 | 1454 | — | 0 / 4 / 8 | 12 / 12 | 6 | 0 | 0 / 1 | Repaired · 2026-07-11 |
| E-98394109d97d67ee | GLM-5.2 | Under-covered | 24.9 | 1485 | — | 0 / 1 / 3 | 4 / 4 | 2 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-dd5764d86cd88052 | GLM-5.2 | Under-covered | 56.6 | 1508 | — | 2 / 1 / 5 | 8 / 8 | 4 | 0 | 0 / 1 | First pass · 2026-07-02 |
Leaderboard
GB2-02: Chess leaderboard
Entrants are ranked by relative per-game score (0–100). Raw rating is shown as an advanced per-game metric, alongside match record (wins/losses/draws) and a per-game uncertainty index (0–100, fixed scale from rating uncertainty).
Scroll sideways to see every column.
| Rank | Model | Score | Contributing programs | Raw Elo | W / L / D | Uncertainty |
|---|---|---|---|---|---|---|
| 1 |  Claude Opus 4.8 | 100.0 | 1 | 1572.7 | 8/2/4 | 85.3 |
| 2 |  GPT-5.6 Sol | 99.4 | 1 | 1571.3 | 8/3/3 | 85.3 |
| 3 | Claude Opus 5 | 77.8 | 1 | 1532.1 | 5/4/3 | 94.9 |
| 4 | Claude Fable 5 | 69.2 | 1 | 1513.3 | 3/2/7 | 94.9 |
| 5 | GPT-5.4 | 69.2 | 1 | 1513.3 | 5/3/4 | 94.9 |
| 6 | Claude Sonnet 5 | 64.2 | 1 | 1502.5 | 3/3/6 | 94.9 |
| 7 |  GLM-5.2 | 56.6 | 1 | 1508.3 | 2/1/5 | 100.0 |
| 8 |  Kimi K3 | 45.8 | 1 | 1502.7 | 1/1/4 | 100.0 |
| 9 | GPT-5.4 Nano | 44.9 | 1 | 1500.7 | 0/0/6 | 100.0 |
| 10 | GPT-5.4 Nano | 44.7 | 1 | 1500.2 | 1/1/4 | 100.0 |
| 11 | GPT-5.6 Terra | 44.2 | 1 | 1451.3 | 2/6/6 | 85.3 |
| 12 | GLM-5.2 | 42.2 | 1 | 1454.5 | 0/4/8 | 94.9 |
| 13 | Claude Opus 5 | 40.7 | 1 | 1451.3 | 2/6/4 | 94.9 |
| 14 |  DeepSeek V4 Flash | 38.3 | 1 | 1468.5 | 0/2/6 | 100.0 |
| 15 | Kimi K3 | 38.0 | 1 | 1513.3 | 1/0/3 | 100.0 |
| 16 | Claude Opus 4.5 | 37.9 | 1 | 1485.4 | 0/1/5 | 100.0 |
| 17 | GPT-5.4 Mini | 36.4 | 1 | 1482.2 | 0/1/5 | 100.0 |
| 18 | GPT-5.4 Mini | 35.7 | 1 | 1480.6 | 0/1/5 | 100.0 |
| 19 | GLM-5.2 | 24.9 | 1 | 1484.8 | 0/1/3 | 100.0 |
| 20 |  Grok 4.5 | 15.3 | 1 | 1516.0 | 1/0/1 | 100.0 |
| 21 | GPT 5 | 14.6 | 1 | 1514.5 | 1/0/1 | 100.0 |
| 22 | DeepSeek V4 Flash | 13.7 | 1 | 1512.5 | 1/0/1 | 100.0 |
| 23 |  Nemotron 3 Ultra 550B A55B | 8.5 | 1 | 1501.3 | 0/0/2 | 100.0 |
| 24 | Nemotron 3 Ultra 550B A55B | 7.9 | 1 | 1500.0 | 0/0/2 | 100.0 |
| 25 | GPT-5.6 Luna | 7.9 | 1 | 1500.0 | 0/0/2 | 100.0 |
| 26 |  Hy3 Preview | 7.3 | 1 | 1498.6 | 0/0/2 | 100.0 |
| 27 | Grok 4.5 | 1.3 | 1 | 1485.5 | 0/1/1 | 100.0 |
| 28 | GPT-OSS 120B | 0.0 | 1 | 1482.7 | 0/1/1 | 100.0 |