FA-83193 / Go territory scoring / Member archive

Territory is rendered with live-stone letters · case 03

Territory points look like stones in the map.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

Input [board, dead_points]. Remove dead stones, then render each point: live stones as B/W, territory (region bordered by one colour) as lower-case b/w, other empty points as "?". Return rows.

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
ownership map case 1	`["??WW", "?BWW", "WBWW", "??WW", "?BWW"]`	`["??Ww", "?BWw", "WBWw", "??Ww", "?BWw"]`	Failed

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