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 42 entrants.
| Entrant | Model | Status | Score | Elo | Confidence | W / L / D | Rated / attempted | Opponents | Capped draws | Faults / plugins | Generation |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E-cd3608270e8c00fd | Claude Fable 5 | Under-covered | 47.0 | 1500 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-03472a04778e9928 | Claude Opus 4.5 | Under-covered | 47.0 | 1500 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · — |
| E-ed71c4ecf219b609 | Claude Opus 4.8 | Under-covered | 23.1 | 1459 | — | 0 / 3 / 3 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-50b401cafe71e710 | Claude Opus 5 | Under-covered | 64.2 | 1530 | — | 3 / 1 / 2 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-25 |
| E-8a5bf2e23121edf6 | Claude Opus 5 | Under-covered | 61.2 | 1494 | — | 1 / 2 / 7 | 10 / 10 | 5 | 0 | 0 / 1 | First pass · 2026-07-25 |
| E-a1a16bb5799cfdbe | Claude Sonnet 5 | Under-covered | 31.0 | 1500 | — | 0 / 0 / 4 | 4 / 4 | 2 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-ef7a835bdb46a90e | Gemini 3.5 Flash | Under-covered | 0.1 | 1499 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-60dfb882a81b3944 | Gemini 3.5 Flash Lite | Under-covered | 48.9 | 1485 | — | 0 / 1 / 7 | 8 / 8 | 4 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-f2b9f6de4830b5f8 | Gemini 3.5 Flash Lite | Under-covered | 48.5 | 1485 | — | 0 / 1 / 7 | 8 / 8 | 4 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-62275b0c39dda32a | Gemini 3.6 Flash | Under-covered | 46.2 | 1499 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-24 |
| E-e49b9c0097a352eb | Gemini 3.6 Flash | Under-covered | 57.4 | 1500 | — | 0 / 0 / 8 | 8 / 8 | 4 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-f4948a32cdd115a9 | GPT-5.4 | Under-covered | 57.4 | 1500 | — | 0 / 0 / 8 | 8 / 8 | 4 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-3082b8a32a9c1e1f | GPT-5.4 Mini | Under-covered | 31.0 | 1500 | — | 0 / 0 / 4 | 4 / 4 | 2 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-4f2717a1b63468f4 | GPT-5.4 Mini | Under-covered | 47.0 | 1500 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-01 |
| E-6724998b59176607 | GPT-5.4 Mini | Under-covered | 31.7 | 1501 | — | 0 / 0 / 4 | 4 / 4 | 2 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-6a4ccfcf11c5e3f3 | GPT-5.4 Nano | Under-covered | 57.3 | 1500 | — | 0 / 0 / 8 | 8 / 8 | 4 | 0 | 0 / 1 | Repaired · 2026-07-01 |
| E-a92f8113f0090156 | GPT-5.4 Nano | Under-covered | 47.0 | 1500 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-d96eaa4f1d20c47b | GPT-5.4 Nano | Under-covered | 47.0 | 1500 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-8460841e3919c568 | GPT-5.5 | Under-covered | 45.6 | 1498 | — | 1 / 1 / 4 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-e2dda893ae4363f2 | GPT-5.6 Luna | Under-covered | 47.0 | 1500 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-10 |
| E-087d760c91df7f17 | GPT-5.6 Sol | Under-covered | 66.0 | 1515 | — | 2 / 1 / 5 | 8 / 8 | 4 | 0 | 0 / 1 | Repaired · 2026-07-10 |
| E-82ad98d8d570daab | GPT-5.6 Terra | Under-covered | 47.0 | 1500 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | Repaired · 2026-07-10 |
| E-129026c5e53b35ad | Ling 3.0 Flash | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-a00d8e3eb7dd07cf | LongCat 2.0 | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-cad87bcb23d33fef | Minimax M3 | Under-covered | 0.8 | 1500 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-85c8a9372a607001 | Kimi K2.7 Code | Under-covered | 1.6 | 1501 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-8825a1d540d89836 | Kimi K3 | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-be8e56a3b58c5bcc | Kimi K3 | Under-covered | 55.5 | 1515 | — | 1 / 0 / 5 | 6 / 6 | 3 | 0 | 0 / 1 | Repaired · 2026-07-21 |
| E-bd70ebbd81fdbef0 | Nemotron 3 Ultra 550B A55B | Under-covered | 49.0 | 1486 | — | 0 / 1 / 7 | 8 / 8 | 4 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-8f0c6569aa132f8e | GPT-OSS 120B | Under-covered | 47.0 | 1500 | — | 0 / 0 / 6 | 6 / 6 | 3 | 0 | 0 / 1 | First pass · 2026-07-02 |
| E-7164ee63b9dd911a | Laguna S 2.1 | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | First pass · 2026-07-24 |
| E-ba56689188a301b2 | Laguna S 2.1 | Pending | — | — | — | 0 / 0 / 0 | 0 / 0 | 0 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-95265340f8562bfd | Qwen3.7 Max | Under-covered | 0.8 | 1500 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-57293d5b71f14882 | Qwen3.7 Plus | Under-covered | 0.8 | 1500 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-0ccea44addccfff0 | Step 3.7 Flash | Under-covered | 54.8 | 1513 | — | 1 / 0 / 5 | 6 / 6 | 3 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-63e0985794df5d5b | Inkling | Under-covered | 31.3 | 1500 | — | 0 / 0 / 4 | 4 / 4 | 2 | 0 | 0 / 1 | Repaired · 2026-07-24 |
| E-081ac2f1dd1c34b2 | Grok 4.5 | Under-covered | 100.0 | 1551 | — | 4 / 0 / 8 | 12 / 12 | 6 | 0 | 0 / 1 | Repaired · 2026-07-17 |
| E-da5ea0258e71b6ab | Grok 4.5 | Under-covered | 62.5 | 1486 | — | 2 / 3 / 7 | 12 / 12 | 6 | 0 | 0 / 1 | First pass · 2026-07-24 |
| E-99592fa0331c6679 | Grok Build 0.1 | Under-covered | 0.0 | 1499 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-5b213ae773e821cc | MiMo-V2.5 | Under-covered | 0.8 | 1500 | — | 0 / 0 / 2 | 2 / 2 | 1 | 0 | 0 / 1 | Repaired · 2026-07-02 |
| E-a5f372b0e5962ee5 | MiMo-V2.5 | Under-covered | 31.0 | 1500 | — | 0 / 0 / 4 | 4 / 4 | 2 | 0 | 0 / 1 | Repaired · 2026-07-01 |
| E-c37f25e181320efb | MiMo-V2.5 | Under-covered | 22.5 | 1485 | — | 0 / 1 / 3 | 4 / 4 | 2 | 0 | 0 / 1 | Repaired · 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 |  Grok 4.5 | 100.0 | 1 | 1551.1 | 4/0/8 | 94.9 |
| 2 |  GPT-5.6 Sol | 66.0 | 1 | 1514.9 | 2/1/5 | 100.0 |
| 3 |  Claude Opus 5 | 64.2 | 1 | 1529.6 | 3/1/2 | 100.0 |
| 4 | Grok 4.5 | 62.5 | 1 | 1486.5 | 2/3/7 | 94.9 |
| 5 | Claude Opus 5 | 61.2 | 1 | 1493.8 | 1/2/7 | 100.0 |
| 6 |  Gemini 3.6 Flash | 57.4 | 1 | 1500.0 | 0/0/8 | 100.0 |
| 7 | GPT-5.4 | 57.4 | 1 | 1500.0 | 0/0/8 | 100.0 |
| 8 | GPT-5.4 Nano | 57.3 | 1 | 1499.9 | 0/0/8 | 100.0 |
| 9 |  Kimi K3 | 55.5 | 1 | 1514.6 | 1/0/5 | 100.0 |
| 10 |  Step 3.7 Flash | 54.8 | 1 | 1513.3 | 1/0/5 | 100.0 |
| 11 |  Nemotron 3 Ultra 550B A55B | 49.0 | 1 | 1485.5 | 0/1/7 | 100.0 |
| 12 | Gemini 3.5 Flash Lite | 48.9 | 1 | 1485.3 | 0/1/7 | 100.0 |
| 13 | Gemini 3.5 Flash Lite | 48.5 | 1 | 1484.7 | 0/1/7 | 100.0 |
| 14 | GPT-5.4 Nano | 47.0 | 1 | 1500.0 | 0/0/6 | 100.0 |
| 15 | GPT-5.6 Terra | 47.0 | 1 | 1500.0 | 0/0/6 | 100.0 |
| 16 | GPT-5.4 Nano | 47.0 | 1 | 1500.0 | 0/0/6 | 100.0 |
| 17 | GPT-5.6 Luna | 47.0 | 1 | 1500.0 | 0/0/6 | 100.0 |
| 18 | Claude Opus 4.5 | 47.0 | 1 | 1500.0 | 0/0/6 | 100.0 |
| 19 | GPT-OSS 120B | 47.0 | 1 | 1500.0 | 0/0/6 | 100.0 |
| 20 | GPT-5.4 Mini | 47.0 | 1 | 1500.0 | 0/0/6 | 100.0 |
| 21 | Claude Fable 5 | 47.0 | 1 | 1500.0 | 0/0/6 | 100.0 |
| 22 | Gemini 3.6 Flash | 46.2 | 1 | 1498.6 | 0/0/6 | 100.0 |
| 23 | GPT-5.5 | 45.6 | 1 | 1497.6 | 1/1/4 | 100.0 |
| 24 | GPT-5.4 Mini | 31.7 | 1 | 1501.3 | 0/0/4 | 100.0 |
| 25 |  Inkling | 31.3 | 1 | 1500.5 | 0/0/4 | 100.0 |
| 26 |  MiMo-V2.5 | 31.0 | 1 | 1500.0 | 0/0/4 | 100.0 |
| 27 | GPT-5.4 Mini | 31.0 | 1 | 1500.0 | 0/0/4 | 100.0 |
| 28 | Claude Sonnet 5 | 31.0 | 1 | 1500.0 | 0/0/4 | 100.0 |
| 29 | Claude Opus 4.8 | 23.1 | 1 | 1458.7 | 0/3/3 | 100.0 |
| 30 | MiMo-V2.5 | 22.5 | 1 | 1485.4 | 0/1/3 | 100.0 |
| 31 | Kimi K2.7 Code | 1.6 | 1 | 1501.4 | 0/0/2 | 100.0 |
| 32 |  Qwen3.7 Max | 0.8 | 1 | 1500.0 | 0/0/2 | 100.0 |
| 33 |  Minimax M3 | 0.8 | 1 | 1500.0 | 0/0/2 | 100.0 |
| 34 | Qwen3.7 Plus | 0.8 | 1 | 1500.0 | 0/0/2 | 100.0 |
| 35 | MiMo-V2.5 | 0.8 | 1 | 1500.0 | 0/0/2 | 100.0 |
| 36 | Gemini 3.5 Flash | 0.1 | 1 | 1498.7 | 0/0/2 | 100.0 |
| 37 | Grok Build 0.1 | 0.0 | 1 | 1498.6 | 0/0/2 | 100.0 |