FA-83260 / Go territory scoring / Member archive

Suicidal moves are replayed as legal · case 05

A libertyless chain remains on the replay board.

Member previewVariant 5 · 3 implementations · 8 checks per implementation

Case contract

Input [size, moves]; each move is [colour, row, col] or [colour, "pass"]. Replay with captures; captured stones are prisoners of the mover; occupied or suicidal moves stop replay with ["illegal", index]. Return [prisoners_B, prisoners_W, final_board_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
replay case 6	`[0, 1, ["W..", "WB.", "BW."]]`	`["illegal", 6]`	Failed

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