Bull (Niuniu)
Bid for banker. Compare five cards.
See four cards before bidding for banker. Players bet before receiving the fifth card. Each player settles against the banker using separate practice chips and zero-sum transfers.
Fairness starts with this game’s rules.
The server shuffles randomly and applies the room’s action and scoring rules. Membership tier is not an input to dealing. Per-game cryptographic verification records are not currently available for this game.
See fairness mechanisms and verification scope →Learn the basics. Then take a seat.
- 01
Create a friend room or practise with bots, with enough chips for the selected seats and base stake.
- 02
Pass or bid 1–4× after seeing four cards. Other players bet 1–5×, then receive the fifth card.
- 03
Find three cards totalling a multiple of ten and rank the remaining pair. Reveal together, then settle each player against the banker.
Bull (Niuniu) · Rules and scoring
These are the rules used by BluffKing. Regional variants can differ; check the game settings before playing.
How results are settled
Net transfer = base × banker bid × player bet × winning-hand multiplier. Each player settles against the banker.
Playing rules
- One deck without jokers, five cards each. A counts as 1; J, Q and K as 10; other cards use face value.
- A triple summing to a multiple of ten forms a bull. The remaining pair modulo ten gives the rank; zero is Bull Bull. No triple means No Bull. No special hands.
- No Bull < Bull 1 through 9 < Bull Bull. Ties compare the highest card, K down to A, then spades > hearts > clubs > diamonds.
- See four cards and bid pass or 1–4×. Highest bid wins, tied bids are random. All pass selects a random banker at 1×. Players bet 1–5× before receiving the fifth card.
- Each player compares with the banker. Transfer = base × banker bid × player bet × winning-hand multiplier. No Bull/Bull 1–6: 1×; Bull 7–9: 2×; Bull Bull: 3×.
- Admission requires base × 60 × (table seats − 1), covering maximum liability. Settlement is zero sum with no rake. Leaving still settles the hand; insufficient balances sit out the next hand.
- Each phase lasts 15 seconds. Defaults: pass, 1× bet, auto reveal. Cards are disclosed together. AI uses only its own visible cards and public information.
Before you play
How are ranks and multipliers calculated?
No Bull and Bull 1–6 pay 1×, Bull 7–9 pay 2×, and Bull Bull pays 3×. Transfer equals base × banker bid × player bet × winning-hand multiplier. Each player compares only with the banker.
Ready for Bull (Niuniu)?
Open the game and check its rules and scoring before starting.