Double-Barrel® Bonus-Blackjack™ 雙層砲 21點™ (Ten-20® + Perfect-11®)
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Double-Barrel® Bonus-Blackjack™ is a set of Two Side-bets on any Blackjack games (Ten-20® and Perfect-11®).
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RULES

Ten-20® Bonus-Blackjack™:
Ten-20 wins when the Player’s initial two-card add-up to a 10-Points or 20-Points, see Pay-Table.​
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​* Math at Wizard of Odds: Ten20WoO.com
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Perfect-11® Bonus-Blackjack™:
Perfect-11 wins when the Player’s initial two-card is a Blackjack or add-up to 11-Points, see Pay-Table.
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​* Math at Wizard of Odds (Side-bet for Open-21®): Open21WoO.com
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Patent Pending. ©Stephen Au-Yeung, All right reserved.
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