FA-81878 / Poker hand evaluation / Member archive

Full houses are reported as four of a kind · case 03

Sevens full of kings is labelled four of a kind.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

Input: five distinct cards as rank+suit strings; ranks 2-9, T or 10, J, Q, K, A (case-insensitive), suits c/d/h/s (case-insensitive). Return the standard five-card category name in lower case; A-2-3-4-5 is a straight; royal flush is reported as "straight flush".

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
full house	`"four of a kind"`	`"full house"`	Failed

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