Pencil Puzzle Bench - Norinori: leaderboard

Models shade Norinori rooms with exactly two adjacent cells per room, while preventing any larger shaded group from forming. Direct-ask exact success fraction for 15fixed golden-300 puzzles of this type; archived DirectAskStrategy_05aaaac9, latest record per source model and puzzle. No agentic or revised strategy cohort mixed.

Metric: Direct-ask Success Rate (%). Source: ppbench.com. Saturation forecast: Around January 2027. 51 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.2 (xHigh)93.33#110 (GPT-5.2)
2Gemini 3.1 Pro (Preview)66.67#58
3GPT-5.2 (High)66.67#110 (GPT-5.2)
4Claude Sonnet 4.6 (Thinking)60#90 (Claude Sonnet 4.6)
5GPT-5.1 (Medium)53.33#135 (GPT-5.1)
6GPT-5.2 Pro53.33#61
7Claude Opus 4.6 (Thinking)46.67#63 (Claude Opus 4.6)
8GPT-5 (Medium)46.67#98 (GPT-5)
9Grok 4.1 Fast (Reasoning)40#217 (Grok 4.1 Fast)
10Grok 4.1 Fast26.67#217
11GPT-5.2 (Medium)20#110 (GPT-5.2)
12Kimi K2.513.33#144
13Gemini 3 Pro13.33#80
14Claude Sonnet 4.5 (Thinking)13.33#142 (Claude Sonnet 4.5)
15O313.33#124

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=pencil-puzzle-bench-norinori · How It Works · Data refreshed daily, snapshot 2026-10-20.