Shuffling the deck...

How to Play Blackjack at 21z

Play Zcash blackjack with a record you can inspect. Review the dealer rules and available decisions below, then follow the guide to check a hand after seed reveal.

Game Rules

  • Beat the dealer by getting closer to 21 without going over
  • Number cards are worth their face value
  • Face cards (J, Q, K) are worth 10
  • Aces are worth 1 or 11, whichever is better for your hand
  • Blackjack (Ace + 10-value card) pays 3:2
  • Dealer must hit on 16 and stand on 17

Your Options

  • Hit — Take another card to increase your hand value
  • Stand — Keep your current hand and end your turn
  • Double Down — Double your bet and take exactly one more card
  • Split — Split a pair into two separate hands
  • Surrender — Forfeit your hand and recover half your bet (first two cards only)
  • Insurance — Side bet when dealer shows an Ace (pays 2:1)

Why Play at 21z?

Provably Fair

Real-play seed sessions are committed to Zcash before betting. After you rotate the seed session, check a completed hand using our verification tool.

True Privacy

No accounts, no KYC. Play with Zcash shielded transactions for maximum privacy. Learn more about our fairness system.

Low House Edge

Approximately 0.5% house edge with basic strategy under our current ruleset. Full transparency on all odds — check our house edge disclosures.

Keyboard Shortcuts

H HitS StandD Double DownP SplitR SurrenderY Accept InsuranceN Decline InsuranceEnter Deal / Play Again

Know the rules. Check the hand.

21z Blackjack Rules and Decision Guide

Learn blackjack hand values, dealer rules, doubling, splitting, surrender, and how to review your decisions at the 21z table.

How to Verify a Blackjack Hand on 21z

Follow a blackjack hand from seed commitment to reveal and replay. Learn what pending reveal means and what verification can establish.