FA-83329 / Go territory scoring / Member archive

Stones one line beyond the board are accepted · case 04

A coordinate equal to size passes validation.

Member previewVariant 4 · 3 implementations · 8 checks per implementation

Case contract

Input [size, count, stones]. Check in order: every stone on the board ("range"), no duplicate ("duplicate"), exactly count stones and 2 <= count <= 9 ("count"). Otherwise "ok".

Why this case matters

Go servers and scoring tools compute this value automatically; a wrong answer changes a game result.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
free placement case 7	`"duplicate"`	`"range"`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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