FA-82277 / Poker hand evaluation / Member archive

Four-card run treated as a made straight · case 02

Open-ended draws report zero outs because the draw is already counted as a straight.

Member previewVariant 2 · 3 implementations · 8 checks per implementation

Case contract

Input: {"cards": known hole and board cards (4 to 6, no straight yet), "dead": other seen cards}. Return how many unseen cards would give the player a five-card straight (ace plays high or low): for every rank that completes a straight, count its four cards minus those already seen in cards or dead.

Why this case matters

Out counts feed pot-odds displays and all-in equity shortcuts.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
ace-high draw	`0`	`4`	Failed

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