Cipher 21 — Pirate Droid

SHOE 208 cards · 0 hands · KEY: 🔒

DEALER ?

YOU 0

Ante 0

TAP TO CONTINUE

Standard blackjack with encrypted cards. Every card's displayed rank is shifted by a secret key k (1-12). Crack the key for perfect info.

Ace=1 or 11, 2-10=face value, J/Q/K=10. Goal: closest to 21 without busting (going over 21).

CIPHER ACTIONS

Action	Effect
CRACK	Guess key (1-12). Right: +2x ante, cards revealed. Wrong: -1x ante.
PLAINTEXT	Guess a card's true rank. Right: +½ ante. Wrong: -½ ante. Once/hand.
FREQUENCY	Pay 2x ante to see encrypted rank histogram. Once/shoe.

SIDE BETS

Encryption: displayed rank = (true rank index + k) mod 13. Key changes each new shoe (~50 hands).

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Welcome to Cipher 21

Encrypted blackjack at the edge of the galaxy. Every card's rank is shifted by a secret key.

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Encrypted Cards

Cards show encrypted ranks. The true rank = (displayed - k) mod 13. You must deduce the key to know your real hand.

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Goal: Beat 21

Standard blackjack: get close to 21 without going over. A=1/11, face cards=10. But you're playing blind until you crack the key!

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Crack the Cipher

CRACK: guess the key for a bonus. PLAINTEXT: guess a card's true rank. FREQUENCY: see rank histogram. Cracking reveals all cards!