FA-81998 / Poker hand evaluation / Member archive

Omaha hand plays four hole cards or the bare board · case 03

A single suited hole card makes a flush on a four-flush board, and four aces in hand count as quads.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

Input: {"variant": "plo" (4 hole cards) or "plo5" (5 hole cards), "hole": [...], "board": 3 to 5 cards}. The hand must use exactly two hole cards and exactly three board cards. Return the best category name, or "invalid" for a wrong hole count, a board outside 3-5 cards, or a duplicated card.

Why this case matters

Poker engines settle real money pots from these comparisons; a single misranked hand pays the wrong seat.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
board flush one suited hole card	`"flush"`	`"high card"`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.