FA-94672 / Exam timetabling constraints / Member archive

Second sitting starts without the supervised break · case 02

Candidates go straight from one paper to the next.

Member previewVariant 2 · 3 implementations · 8 checks per implementation

Case contract

Each clash [student, exam a, exam b] shares a start time. The longer exam is sat first (ties by id), then a 15-minute supervised break, then the second exam. Return [student, first, second, second start, whether the second exam ends by day_end (inclusive)].

Why this case matters

Clash resolution by supervised sequential sitting is a standard timetabling fallback.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
regression: supervised break 1	`[["s1", "A", "B", 720, true]]`	`[["s1", "A", "B", 735, true]]`	Failed

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