Skip to content
en
EnglishTiếng Việt
Sign inSign up

Blackjack

Provably Fair · RTP ~95%

The dealer stands on all 17s. Blackjack pays 6:5, other wins 1.94×, double on the first two cards, no split.

Sign in to play
DEALER
YOU
Provably Fair

No bets yet.

How to play Blackjack

The goal is a total closer to 21 than the dealer's without going over 21. Cards 2–10 count their number, J/Q/K count 10 and an A counts 1 or 11. You can Hit for another card, Stand to let the dealer play, or Double your bet to receive exactly one more card. Blackjack (an A plus a 10-value card as your first two cards) pays 3:2. Each card comes from float i of the server seed, client seed and nonce in dealing order.

What are the Blackjack rules here?

The dealer stands on all 17s, blackjack pays 6:5 (2.2×), other wins pay 1.94×, double on the first two cards, no split. With perfect basic strategy the RTP is about 95.3%.

How do I verify a round?

Each card is floor(float × 52) of float i from the server seed, client seed and nonce, in this order: you, dealer, you, dealer (face down), then every extra card in the order it is drawn.