FA-83064 / Go territory scoring / Member archive

The equalising stone is credited to white · case 04

Black-last games give white an extra prisoner.

Member previewVariant 4 · 3 implementations · 8 checks per implementation

Case contract

Input [terr_b, terr_w, prisoners_b, prisoners_w, passes, komi_tenths]; passes lists passing colours in order. Each pass gives one prisoner to the opponent; if the final pass was black, white hands one extra stone to black. Return [black_tenths, white_tenths, winner] with winner B, W or tie.

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
pass stones case 0	`[170, 255, "W"]`	`[180, 245, "W"]`	Failed

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