Luckily, vingt-et-un calls for little concentration.    From Wordnik.com.  [Flashman]

He is dealer, and turns up a "vingt-et-un" almost every time.    From Wordnik.com.  [Blackwood's Edinburgh Magazine, Volume 62, Number 385. November, 1847.] Reference

In the salon, the women were playing at vingt-et-un, kept by Nathan, the celebrated author.    From Wordnik.com.  [A Start in Life] Reference

Or leaning over the green baize card table, watching while she and Isolde played vingt-et-un.    From Wordnik.com.  [Sepulchre]

There was quite a crowd round the table in the salon, where Bentinck was presiding over vingt-et-un, amid great merriment.    From Wordnik.com.  [Flash For Freedom]

The game was vingt-et-un, and it happened that at that game I had a small joke concerning the Queen of Diamonds, which I maintained was my lucky card.    From Wordnik.com.  [Flashman]

Bryant snapped up Mrs Locke's second card and showed it to her with a grin; D'Israeli displayed vingt-et-un by laying his second card, a queen, face up across the first one.    From Wordnik.com.  [Flash For Freedom]

Très joli mais vingt-et-un bucks … courtesy of Google Translate.    From Wordnik.com.  [BC Bloggers] Reference

Late that night he received a tip from a dealer at one of vingt-et-un tables.    From Wordnik.com.  [Dangerous Days] Reference

Bonaparte did not like cards; when he did happen to play it was always vingt-et-un.    From Wordnik.com.  [The Companions of Jehu] Reference

They had also come to invite her to play vingt-et-un one evening at Mrs. Merriman's.    From Wordnik.com.  [The Awakening and Selected Short Stories] Reference

To this dance, or rather to these postures of a bayadère, succeeded the excitement of vingt-et-un, followed by well-earned repose.    From Wordnik.com.  [Celebrated Travels and Travellers Part III. The Great Explorers of the Nineteenth Century] Reference

He disliked card games of any sort — even the humble vingt-et-un — and in the supreme refinement of whist he was hopelessly at a loss.    From Wordnik.com.  [Flying Colours]

His pleasant manner and agreeable society at vingt-et-un procured us another invitation for the following night but one, and of course we accepted it.    From Wordnik.com.  [The Reminiscences Of Sir Henry Hawkins]

After the music, cards were introduced, and they commenced playing vingt-et-un, Crook being the special favourite with everybody, especially with the ladies.    From Wordnik.com.  [The Reminiscences Of Sir Henry Hawkins]

Mind you, they don't go in for baccarat, much ... vingt-et-un, mostly, and poker - ".    From Wordnik.com.  [Watershed] Reference

We’ll drain a couple of pints, gamble at vingt-et-un with the lads here, and tumble a taproom maid or two.    From Wordnik.com.  [A Hellion in Her Bed] Reference

Out of nowhere, suddenly, as he strode past the last of the vingt-et-un tables, the man’s eyes flicked to hers.    From Wordnik.com.  [Purchased For Revenge]

Because I played vingt-et-un and was satisfied with twenty. ".    From Wordnik.com.  [The Modern Regime, Volume 1] Reference

"gathered around the tables absorbed in piquet, écarté, or vingt-et-un.    From Wordnik.com.  [Fifth Avenue] Reference

21 vingt-et-un.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

B-zique, vingt-et-un, whatever you wish. '.    From Wordnik.com.  [Sepulchre]

Alas, I thought, twenty-one and vingt-et-un!.    From Wordnik.com.  [The Reminiscences Of Sir Henry Hawkins]

People driven mad by vingt-et-un or poker-dice?.    From Wordnik.com.  [That Sweet Little Old Lady] Reference