FA-84019 / Sports scoring and tiebreakers / Member archive

Completed overs displayed as decimal thirds or 0.6 · case 04

After seven legal balls the overs read "1.2" or an over boundary reads "0.6".

Member previewVariant 4 · 3 implementations · 10 checks per implementation

Case contract

Ball-by-ball innings tally. Events: "0".."6" runs off the bat (legal ball); "W" wicket (legal ball, no runs, the new batter takes strike); "wdK" wide: 1 penalty + K run wides, all extras, not a legal ball, K runs completed; "nbK" no-ball: 1 penalty extra + K runs off the bat, not a legal ball; "bK"/"lbK" byes/leg byes: K extras on a legal ball. Batters change ends when an odd number of runs is completed, and again after the 6th legal ball of an over. Batters are numbered 1, 2 and then 3, 4, ... as they come in; batter 1 starts on strike. Return [total, wickets, overs "O.B", extras, batter on strike].

Why this case matters

Scoring apps derive totals, overs and strike from ball events; extras and strike rotation are error-prone.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
boundary single rotates strike	`[1, 0, "0.2", 0, 2]`	`[1, 0, "0.1", 0, 2]`	Failed

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