FA-83678 / Card game rule engines / Member archive

Banker 3 draws against a player third-card 8 · case 03

Banker takes a card it must refuse.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

Input [player_cards, banker_cards, next_shoe_cards]. Values A=1, 2-9 pip, T/J/Q/K 0; totals mod 10. A natural 8/9 on either side stops the coup. Player draws on 0-5. If player stood, banker draws on 0-5; otherwise banker draws on 0-2, on 3 unless the player third card is 8, on 4 vs 2-7, on 5 vs 4-7, on 6 vs 6-7. Return [player_total, banker_total, winner, cards_drawn].

Why this case matters

Card-game engines, scoring apps and online tables apply this rule automatically on every hand.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
coup case 6	`[9, 8, "player", 2]`	`[9, 3, "player", 1]`	Failed

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