Pencil Puzzle Bench - Country: leaderboard

Models solve Country loop puzzles from short text-encoded grids and written rules. A single non-crossing loop must visit every region once and satisfy its clues. Each of 15 puzzles is scored for constructing a legal solution to its spatial, logical and planning constraints. The move list is only the answer encoding; scoring evaluates the resulting loop rather than JSON formatting. No images or long documents are supplied.

Metric: Direct-ask Success Rate (%). Source: ppbench.com. Saturation forecast: Not forecast. 51 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3.1 Pro (Preview)6.67#58
2GPT-4o0#343
3Gemini 2.5 Pro0#152
4Claude Sonnet 4.60#90
5Claude Sonnet 4.50#142
6GPT-5.20#110
7GPT-4.10#248
8Claude Opus 4.60#63
9GPT-OSS-120B0#341
10Kimi K2.50#144
11DeepSeek V3.20#205
12Qwen 3.5 397B A17B0#146
13Gemini 3 Pro0#80
14Qwen 3 Next 80B A3B (Thinking)0#320 (Qwen 3 Next 80B A3B)
15GLM-50#141

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-country · How It Works · Data refreshed daily, snapshot 2026-10-20.